--- /dev/null
+From 05a1fc5efdd8560f34a3af39c9cf1e1526cc3ddf Mon Sep 17 00:00:00 2001
+From: Takashi Iwai <tiwai@suse.de>
+Date: Sun, 9 Nov 2025 10:12:07 +0100
+Subject: ALSA: usb-audio: Fix potential overflow of PCM transfer buffer
+
+From: Takashi Iwai <tiwai@suse.de>
+
+commit 05a1fc5efdd8560f34a3af39c9cf1e1526cc3ddf upstream.
+
+The PCM stream data in USB-audio driver is transferred over USB URB
+packet buffers, and each packet size is determined dynamically. The
+packet sizes are limited by some factors such as wMaxPacketSize USB
+descriptor. OTOH, in the current code, the actually used packet sizes
+are determined only by the rate and the PPS, which may be bigger than
+the size limit above. This results in a buffer overflow, as reported
+by syzbot.
+
+Basically when the limit is smaller than the calculated packet size,
+it implies that something is wrong, most likely a weird USB
+descriptor. So the best option would be just to return an error at
+the parameter setup time before doing any further operations.
+
+This patch introduces such a sanity check, and returns -EINVAL when
+the packet size is greater than maxpacksize. The comparison with
+ep->packsize[1] alone should suffice since it's always equal or
+greater than ep->packsize[0].
+
+Reported-by: syzbot+bfd77469c8966de076f7@syzkaller.appspotmail.com
+Closes: https://syzkaller.appspot.com/bug?extid=bfd77469c8966de076f7
+Link: https://lore.kernel.org/690b6b46.050a0220.3d0d33.0054.GAE@google.com
+Cc: Lizhi Xu <lizhi.xu@windriver.com>
+Cc: <stable@vger.kernel.org>
+Link: https://patch.msgid.link/20251109091211.12739-1-tiwai@suse.de
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ sound/usb/endpoint.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/sound/usb/endpoint.c
++++ b/sound/usb/endpoint.c
+@@ -1386,6 +1386,11 @@ int snd_usb_endpoint_set_params(struct s
+ ep->sample_rem = ep->cur_rate % ep->pps;
+ ep->packsize[0] = ep->cur_rate / ep->pps;
+ ep->packsize[1] = (ep->cur_rate + (ep->pps - 1)) / ep->pps;
++ if (ep->packsize[1] > ep->maxpacksize) {
++ usb_audio_dbg(chip, "Too small maxpacksize %u for rate %u / pps %u\n",
++ ep->maxpacksize, ep->cur_rate, ep->pps);
++ return -EINVAL;
++ }
+
+ /* calculate the frequency in 16.16 format */
+ ep->freqm = ep->freqn;
--- /dev/null
+From bfe3d755ef7cec71aac6ecda34a107624735aac7 Mon Sep 17 00:00:00 2001
+From: Filipe Manana <fdmanana@suse.com>
+Date: Wed, 29 Oct 2025 13:05:32 +0000
+Subject: btrfs: do not update last_log_commit when logging inode due to a new name
+
+From: Filipe Manana <fdmanana@suse.com>
+
+commit bfe3d755ef7cec71aac6ecda34a107624735aac7 upstream.
+
+When logging that a new name exists, we skip updating the inode's
+last_log_commit field to prevent a later explicit fsync against the inode
+from doing nothing (as updating last_log_commit makes btrfs_inode_in_log()
+return true). We are detecting, at btrfs_log_inode(), that logging a new
+name is happening by checking the logging mode is not LOG_INODE_EXISTS,
+but that is not enough because we may log parent directories when logging
+a new name of a file in LOG_INODE_ALL mode - we need to check that the
+logging_new_name field of the log context too.
+
+An example scenario where this results in an explicit fsync against a
+directory not persisting changes to the directory is the following:
+
+ $ mkfs.btrfs -f /dev/sdc
+ $ mount /dev/sdc /mnt
+
+ $ touch /mnt/foo
+
+ $ sync
+
+ $ mkdir /mnt/dir
+
+ # Write some data to our file and fsync it.
+ $ xfs_io -c "pwrite -S 0xab 0 64K" -c "fsync" /mnt/foo
+
+ # Add a new link to our file. Since the file was logged before, we
+ # update it in the log tree by calling btrfs_log_new_name().
+ $ ln /mnt/foo /mnt/dir/bar
+
+ # fsync the root directory - we expect it to persist the dentry for
+ # the new directory "dir".
+ $ xfs_io -c "fsync" /mnt
+
+ <power fail>
+
+After mounting the fs the entry for directory "dir" does not exists,
+despite the explicit fsync on the root directory.
+
+Here's why this happens:
+
+1) When we fsync the file we log the inode, so that it's present in the
+ log tree;
+
+2) When adding the new link we enter btrfs_log_new_name(), and since the
+ inode is in the log tree we proceed to updating the inode in the log
+ tree;
+
+3) We first set the inode's last_unlink_trans to the current transaction
+ (early in btrfs_log_new_name());
+
+4) We then eventually enter btrfs_log_inode_parent(), and after logging
+ the file's inode, we call btrfs_log_all_parents() because the inode's
+ last_unlink_trans matches the current transaction's ID (updated in the
+ previous step);
+
+5) So btrfs_log_all_parents() logs the root directory by calling
+ btrfs_log_inode() for the root's inode with a log mode of LOG_INODE_ALL
+ so that new dentries are logged;
+
+6) At btrfs_log_inode(), because the log mode is LOG_INODE_ALL, we
+ update root inode's last_log_commit to the last transaction that
+ changed the inode (->last_sub_trans field of the inode), which
+ corresponds to the current transaction's ID;
+
+7) Then later when user space explicitly calls fsync against the root
+ directory, we enter btrfs_sync_file(), which calls skip_inode_logging()
+ and that returns true, since its call to btrfs_inode_in_log() returns
+ true and there are no ordered extents (it's a directory, never has
+ ordered extents). This results in btrfs_sync_file() returning without
+ syncing the log or committing the current transaction, so all the
+ updates we did when logging the new name, including logging the root
+ directory, are not persisted.
+
+So fix this by but updating the inode's last_log_commit if we are sure
+we are not logging a new name (if ctx->logging_new_name is false).
+
+A test case for fstests will follow soon.
+
+Reported-by: Vyacheslav Kovalevsky <slava.kovalevskiy.2014@gmail.com>
+Link: https://lore.kernel.org/linux-btrfs/03c5d7ec-5b3d-49d1-95bc-8970a7f82d87@gmail.com/
+Fixes: 130341be7ffa ("btrfs: always update the logged transaction when logging new names")
+CC: stable@vger.kernel.org # 6.1+
+Signed-off-by: Filipe Manana <fdmanana@suse.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/btrfs/tree-log.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/fs/btrfs/tree-log.c
++++ b/fs/btrfs/tree-log.c
+@@ -6795,7 +6795,7 @@ log_extents:
+ * a power failure unless the log was synced as part of an fsync
+ * against any other unrelated inode.
+ */
+- if (inode_only != LOG_INODE_EXISTS)
++ if (!ctx->logging_new_name && inode_only != LOG_INODE_EXISTS)
+ inode->last_log_commit = inode->last_sub_trans;
+ spin_unlock(&inode->lock);
+
--- /dev/null
+From c367af440e03eba7beb0c9f3fe540f9bcb69134a Mon Sep 17 00:00:00 2001
+From: Zilin Guan <zilin@seu.edu.cn>
+Date: Wed, 5 Nov 2025 02:37:22 +0000
+Subject: btrfs: release root after error in data_reloc_print_warning_inode()
+
+From: Zilin Guan <zilin@seu.edu.cn>
+
+commit c367af440e03eba7beb0c9f3fe540f9bcb69134a upstream.
+
+data_reloc_print_warning_inode() calls btrfs_get_fs_root() to obtain
+local_root, but fails to release its reference when paths_from_inode()
+returns an error. This causes a potential memory leak.
+
+Add a missing btrfs_put_root() call in the error path to properly
+decrease the reference count of local_root.
+
+Fixes: b9a9a85059cde ("btrfs: output affected files when relocation fails")
+CC: stable@vger.kernel.org # 6.6+
+Reviewed-by: Qu Wenruo <wqu@suse.com>
+Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
+Reviewed-by: David Sterba <dsterba@suse.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/btrfs/inode.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/fs/btrfs/inode.c
++++ b/fs/btrfs/inode.c
+@@ -174,8 +174,10 @@ static int data_reloc_print_warning_inod
+ return ret;
+ }
+ ret = paths_from_inode(inum, ipath);
+- if (ret < 0)
++ if (ret < 0) {
++ btrfs_put_root(local_root);
+ goto err;
++ }
+
+ /*
+ * We deliberately ignore the bit ipath might have been too small to
--- /dev/null
+From 5fea61aa1ca70c4b3738eebad9ce2d7e7938ebbd Mon Sep 17 00:00:00 2001
+From: Zilin Guan <zilin@seu.edu.cn>
+Date: Wed, 5 Nov 2025 03:53:21 +0000
+Subject: btrfs: scrub: put bio after errors in scrub_raid56_parity_stripe()
+
+From: Zilin Guan <zilin@seu.edu.cn>
+
+commit 5fea61aa1ca70c4b3738eebad9ce2d7e7938ebbd upstream.
+
+scrub_raid56_parity_stripe() allocates a bio with bio_alloc(), but
+fails to release it on some error paths, leading to a potential
+memory leak.
+
+Add the missing bio_put() calls to properly drop the bio reference
+in those error cases.
+
+Fixes: 1009254bf22a3 ("btrfs: scrub: use scrub_stripe to implement RAID56 P/Q scrub")
+CC: stable@vger.kernel.org # 6.6+
+Reviewed-by: Qu Wenruo <wqu@suse.com>
+Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
+Reviewed-by: David Sterba <dsterba@suse.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/btrfs/scrub.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/fs/btrfs/scrub.c
++++ b/fs/btrfs/scrub.c
+@@ -2091,6 +2091,7 @@ static int scrub_raid56_parity_stripe(st
+ ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, full_stripe_start,
+ &length, &bioc, NULL, NULL);
+ if (ret < 0) {
++ bio_put(bio);
+ btrfs_put_bioc(bioc);
+ btrfs_bio_counter_dec(fs_info);
+ goto out;
+@@ -2100,6 +2101,7 @@ static int scrub_raid56_parity_stripe(st
+ btrfs_put_bioc(bioc);
+ if (!rbio) {
+ ret = -ENOMEM;
++ bio_put(bio);
+ btrfs_bio_counter_dec(fs_info);
+ goto out;
+ }
--- /dev/null
+From 94f54924b96d3565c6b559294b3401b5496c21ac Mon Sep 17 00:00:00 2001
+From: Naohiro Aota <naohiro.aota@wdc.com>
+Date: Fri, 12 Sep 2025 15:43:21 +0900
+Subject: btrfs: zoned: fix conventional zone capacity calculation
+
+From: Naohiro Aota <naohiro.aota@wdc.com>
+
+commit 94f54924b96d3565c6b559294b3401b5496c21ac upstream.
+
+When a block group contains both conventional zone and sequential zone, the
+capacity of the block group is wrongly set to the block group's full
+length. The capacity should be calculated in btrfs_load_block_group_* using
+the last allocation offset.
+
+Fixes: 568220fa9657 ("btrfs: zoned: support RAID0/1/10 on top of raid stripe tree")
+CC: stable@vger.kernel.org # v6.12+
+Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/btrfs/zoned.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/fs/btrfs/zoned.c
++++ b/fs/btrfs/zoned.c
+@@ -1300,6 +1300,7 @@ static int btrfs_load_zone_info(struct b
+ if (!btrfs_dev_is_sequential(device, info->physical)) {
+ up_read(&dev_replace->rwsem);
+ info->alloc_offset = WP_CONVENTIONAL;
++ info->capacity = device->zone_info->zone_size;
+ return 0;
+ }
+
+@@ -1598,8 +1599,6 @@ int btrfs_load_block_group_zone_info(str
+ set_bit(BLOCK_GROUP_FLAG_SEQUENTIAL_ZONE, &cache->runtime_flags);
+
+ if (num_conventional > 0) {
+- /* Zone capacity is always zone size in emulation */
+- cache->zone_capacity = cache->length;
+ ret = calculate_alloc_pointer(cache, &last_alloc, new);
+ if (ret) {
+ btrfs_err(fs_info,
+@@ -1608,6 +1607,7 @@ int btrfs_load_block_group_zone_info(str
+ goto out;
+ } else if (map->num_stripes == num_conventional) {
+ cache->alloc_offset = last_alloc;
++ cache->zone_capacity = cache->length;
+ set_bit(BLOCK_GROUP_FLAG_ZONE_IS_ACTIVE, &cache->runtime_flags);
+ goto out;
+ }
--- /dev/null
+From e8c73eb7db0a498cd4b22d2819e6ab1a6f506bd6 Mon Sep 17 00:00:00 2001
+From: Edward Adam Davis <eadavis@qq.com>
+Date: Fri, 7 Nov 2025 22:01:39 +0800
+Subject: cifs: client: fix memory leak in smb3_fs_context_parse_param
+
+From: Edward Adam Davis <eadavis@qq.com>
+
+commit e8c73eb7db0a498cd4b22d2819e6ab1a6f506bd6 upstream.
+
+The user calls fsconfig twice, but when the program exits, free() only
+frees ctx->source for the second fsconfig, not the first.
+Regarding fc->source, there is no code in the fs context related to its
+memory reclamation.
+
+To fix this memory leak, release the source memory corresponding to ctx
+or fc before each parsing.
+
+syzbot reported:
+BUG: memory leak
+unreferenced object 0xffff888128afa360 (size 96):
+ backtrace (crc 79c9c7ba):
+ kstrdup+0x3c/0x80 mm/util.c:84
+ smb3_fs_context_parse_param+0x229b/0x36c0 fs/smb/client/fs_context.c:1444
+
+BUG: memory leak
+unreferenced object 0xffff888112c7d900 (size 96):
+ backtrace (crc 79c9c7ba):
+ smb3_fs_context_fullpath+0x70/0x1b0 fs/smb/client/fs_context.c:629
+ smb3_fs_context_parse_param+0x2266/0x36c0 fs/smb/client/fs_context.c:1438
+
+Reported-by: syzbot+72afd4c236e6bc3f4bac@syzkaller.appspotmail.com
+Closes: https://syzkaller.appspot.com/bug?extid=72afd4c236e6bc3f4bac
+Cc: stable@vger.kernel.org
+Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
+Signed-off-by: Edward Adam Davis <eadavis@qq.com>
+Signed-off-by: Steve French <stfrench@microsoft.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/smb/client/fs_context.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/fs/smb/client/fs_context.c
++++ b/fs/smb/client/fs_context.c
+@@ -1380,12 +1380,14 @@ static int smb3_fs_context_parse_param(s
+ cifs_errorf(fc, "Unknown error parsing devname\n");
+ goto cifs_parse_mount_err;
+ }
++ kfree(ctx->source);
+ ctx->source = smb3_fs_context_fullpath(ctx, '/');
+ if (IS_ERR(ctx->source)) {
+ ctx->source = NULL;
+ cifs_errorf(fc, "OOM when copying UNC string\n");
+ goto cifs_parse_mount_err;
+ }
++ kfree(fc->source);
+ fc->source = kstrdup(ctx->source, GFP_KERNEL);
+ if (fc->source == NULL) {
+ cifs_errorf(fc, "OOM when copying UNC string\n");
--- /dev/null
+From 1abbdf3d57aa964e572940d67c9ec5dc87710738 Mon Sep 17 00:00:00 2001
+From: Hao Ge <gehao@kylinos.cn>
+Date: Wed, 29 Oct 2025 09:43:17 +0800
+Subject: codetag: debug: handle existing CODETAG_EMPTY in mark_objexts_empty for slabobj_ext
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Hao Ge <gehao@kylinos.cn>
+
+commit 1abbdf3d57aa964e572940d67c9ec5dc87710738 upstream.
+
+When alloc_slab_obj_exts() fails and then later succeeds in allocating a
+slab extension vector, it calls handle_failed_objexts_alloc() to mark all
+objects in the vector as empty. As a result all objects in this slab
+(slabA) will have their extensions set to CODETAG_EMPTY.
+
+Later on if this slabA is used to allocate a slabobj_ext vector for
+another slab (slabB), we end up with the slabB->obj_exts pointing to a
+slabobj_ext vector that itself has a non-NULL slabobj_ext equal to
+CODETAG_EMPTY. When slabB gets freed, free_slab_obj_exts() is called to
+free slabB->obj_exts vector.
+
+free_slab_obj_exts() calls mark_objexts_empty(slabB->obj_exts) which will
+generate a warning because it expects slabobj_ext vectors to have a NULL
+obj_ext, not CODETAG_EMPTY.
+
+Modify mark_objexts_empty() to skip the warning and setting the obj_ext
+value if it's already set to CODETAG_EMPTY.
+
+
+To quickly detect this WARN, I modified the code from
+WARN_ON(slab_exts[offs].ref.ct) to BUG_ON(slab_exts[offs].ref.ct == 1);
+
+We then obtained this message:
+
+[21630.898561] ------------[ cut here ]------------
+[21630.898596] kernel BUG at mm/slub.c:2050!
+[21630.898611] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP
+[21630.900372] Modules linked in: squashfs isofs vfio_iommu_type1
+vhost_vsock vfio vhost_net vmw_vsock_virtio_transport_common vhost tap
+vhost_iotlb iommufd vsock binfmt_misc nfsv3 nfs_acl nfs lockd grace
+netfs tls rds dns_resolver tun brd overlay ntfs3 exfat btrfs
+blake2b_generic xor xor_neon raid6_pq loop sctp ip6_udp_tunnel
+udp_tunnel nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib
+nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct
+nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
+nf_tables rfkill ip_set sunrpc vfat fat joydev sg sch_fq_codel nfnetlink
+virtio_gpu sr_mod cdrom drm_client_lib virtio_dma_buf drm_shmem_helper
+drm_kms_helper drm ghash_ce backlight virtio_net virtio_blk virtio_scsi
+net_failover virtio_console failover virtio_mmio dm_mirror
+dm_region_hash dm_log dm_multipath dm_mod fuse i2c_dev virtio_pci
+virtio_pci_legacy_dev virtio_pci_modern_dev virtio virtio_ring autofs4
+aes_neon_bs aes_ce_blk [last unloaded: hwpoison_inject]
+[21630.909177] CPU: 3 UID: 0 PID: 3787 Comm: kylin-process-m Kdump:
+loaded Tainted: GÂ Â Â Â Â Â Â WÂ Â Â Â Â Â Â Â Â Â 6.18.0-rc1+ #74 PREEMPT(voluntary)
+[21630.910495] Tainted: [W]=WARN
+[21630.910867] Hardware name: QEMU KVM Virtual Machine, BIOS unknown
+2/2/2022
+[21630.911625] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS
+BTYPE=--)
+[21630.912392] pc : __free_slab+0x228/0x250
+[21630.912868] lr : __free_slab+0x18c/0x250[21630.913334] sp :
+ffff8000a02f73e0
+[21630.913830] x29: ffff8000a02f73e0 x28: fffffdffc43fc800 x27:
+ffff0000c0011c40
+[21630.914677] x26: ffff0000c000cac0 x25: ffff00010fe5e5f0 x24:
+ffff000102199b40
+[21630.915469] x23: 0000000000000003 x22: 0000000000000003 x21:
+ffff0000c0011c40
+[21630.916259] x20: fffffdffc4086600 x19: fffffdffc43fc800 x18:
+0000000000000000
+[21630.917048] x17: 0000000000000000 x16: 0000000000000000 x15:
+0000000000000000
+[21630.917837] x14: 0000000000000000 x13: 0000000000000000 x12:
+ffff70001405ee66
+[21630.918640] x11: 1ffff0001405ee65 x10: ffff70001405ee65 x9 :
+ffff800080a295dc
+[21630.919442] x8 : ffff8000a02f7330 x7 : 0000000000000000 x6 :
+0000000000003000
+[21630.920232] x5 : 0000000024924925 x4 : 0000000000000001 x3 :
+0000000000000007
+[21630.921021] x2 : 0000000000001b40 x1 : 000000000000001f x0 :
+0000000000000001
+[21630.921810] Call trace:
+[21630.922130]Â __free_slab+0x228/0x250 (P)
+[21630.922669]Â free_slab+0x38/0x118
+[21630.923079]Â free_to_partial_list+0x1d4/0x340
+[21630.923591]Â __slab_free+0x24c/0x348
+[21630.924024]Â ___cache_free+0xf0/0x110
+[21630.924468]Â qlist_free_all+0x78/0x130
+[21630.924922]Â kasan_quarantine_reduce+0x114/0x148
+[21630.925525]Â __kasan_slab_alloc+0x7c/0xb0
+[21630.926006]Â kmem_cache_alloc_noprof+0x164/0x5c8
+[21630.926699]Â __alloc_object+0x44/0x1f8
+[21630.927153]Â __create_object+0x34/0xc8
+[21630.927604]Â kmemleak_alloc+0xb8/0xd8
+[21630.928052]Â kmem_cache_alloc_noprof+0x368/0x5c8
+[21630.928606]Â getname_flags.part.0+0xa4/0x610
+[21630.929112]Â getname_flags+0x80/0xd8
+[21630.929557]Â vfs_fstatat+0xc8/0xe0
+[21630.929975]Â __do_sys_newfstatat+0xa0/0x100
+[21630.930469]Â __arm64_sys_newfstatat+0x90/0xd8
+[21630.931046]Â invoke_syscall+0xd4/0x258
+[21630.931685]Â el0_svc_common.constprop.0+0xb4/0x240
+[21630.932467]Â do_el0_svc+0x48/0x68
+[21630.932972]Â el0_svc+0x40/0xe0
+[21630.933472]Â el0t_64_sync_handler+0xa0/0xe8
+[21630.934151]Â el0t_64_sync+0x1ac/0x1b0
+[21630.934923] Code: aa1803e0 97ffef2b a9446bf9 17ffff9c (d4210000)
+[21630.936461] SMP: stopping secondary CPUs
+[21630.939550] Starting crashdump kernel...
+[21630.940108] Bye!
+
+Link: https://lkml.kernel.org/r/20251029014317.1533488-1-hao.ge@linux.dev
+Fixes: 09c46563ff6d ("codetag: debug: introduce OBJEXTS_ALLOC_FAIL to mark failed slab_ext allocations")
+Signed-off-by: Hao Ge <gehao@kylinos.cn>
+Reviewed-by: Suren Baghdasaryan <surenb@google.com>
+Cc: Christoph Lameter (Ampere) <cl@gentwo.org>
+Cc: David Rientjes <rientjes@google.com>
+Cc: gehao <gehao@kylinos.cn>
+Cc: Roman Gushchin <roman.gushchin@linux.dev>
+Cc: Shakeel Butt <shakeel.butt@linux.dev>
+Cc: Vlastimil Babka <vbabka@suse.cz>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ mm/slub.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/mm/slub.c
++++ b/mm/slub.c
+@@ -1935,7 +1935,11 @@ static inline void mark_objexts_empty(st
+ if (slab_exts) {
+ unsigned int offs = obj_to_index(obj_exts_slab->slab_cache,
+ obj_exts_slab, obj_exts);
+- /* codetag should be NULL */
++
++ if (unlikely(is_codetag_empty(&slab_exts[offs].ref)))
++ return;
++
++ /* codetag should be NULL here */
+ WARN_ON(slab_exts[offs].ref.ct);
+ set_codetag_empty(&slab_exts[offs].ref);
+ }
--- /dev/null
+From 00fbff75c5acb4755f06f08bd1071879c63940c5 Mon Sep 17 00:00:00 2001
+From: Sourabh Jain <sourabhjain@linux.ibm.com>
+Date: Sun, 2 Nov 2025 01:07:41 +0530
+Subject: crash: fix crashkernel resource shrink
+
+From: Sourabh Jain <sourabhjain@linux.ibm.com>
+
+commit 00fbff75c5acb4755f06f08bd1071879c63940c5 upstream.
+
+When crashkernel is configured with a high reservation, shrinking its
+value below the low crashkernel reservation causes two issues:
+
+1. Invalid crashkernel resource objects
+2. Kernel crash if crashkernel shrinking is done twice
+
+For example, with crashkernel=200M,high, the kernel reserves 200MB of high
+memory and some default low memory (say 256MB). The reservation appears
+as:
+
+cat /proc/iomem | grep -i crash
+af000000-beffffff : Crash kernel
+433000000-43f7fffff : Crash kernel
+
+If crashkernel is then shrunk to 50MB (echo 52428800 >
+/sys/kernel/kexec_crash_size), /proc/iomem still shows 256MB reserved:
+af000000-beffffff : Crash kernel
+
+Instead, it should show 50MB:
+af000000-b21fffff : Crash kernel
+
+Further shrinking crashkernel to 40MB causes a kernel crash with the
+following trace (x86):
+
+BUG: kernel NULL pointer dereference, address: 0000000000000038
+PGD 0 P4D 0
+Oops: 0000 [#1] PREEMPT SMP NOPTI
+<snip...>
+Call Trace: <TASK>
+? __die_body.cold+0x19/0x27
+? page_fault_oops+0x15a/0x2f0
+? search_module_extables+0x19/0x60
+? search_bpf_extables+0x5f/0x80
+? exc_page_fault+0x7e/0x180
+? asm_exc_page_fault+0x26/0x30
+? __release_resource+0xd/0xb0
+release_resource+0x26/0x40
+__crash_shrink_memory+0xe5/0x110
+crash_shrink_memory+0x12a/0x190
+kexec_crash_size_store+0x41/0x80
+kernfs_fop_write_iter+0x141/0x1f0
+vfs_write+0x294/0x460
+ksys_write+0x6d/0xf0
+<snip...>
+
+This happens because __crash_shrink_memory()/kernel/crash_core.c
+incorrectly updates the crashk_res resource object even when
+crashk_low_res should be updated.
+
+Fix this by ensuring the correct crashkernel resource object is updated
+when shrinking crashkernel memory.
+
+Link: https://lkml.kernel.org/r/20251101193741.289252-1-sourabhjain@linux.ibm.com
+Fixes: 16c6006af4d4 ("kexec: enable kexec_crash_size to support two crash kernel regions")
+Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
+Acked-by: Baoquan He <bhe@redhat.com>
+Cc: Zhen Lei <thunder.leizhen@huawei.com>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/crash_core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/kernel/crash_core.c
++++ b/kernel/crash_core.c
+@@ -352,7 +352,7 @@ static int __crash_shrink_memory(struct
+ old_res->start = 0;
+ old_res->end = 0;
+ } else {
+- crashk_res.end = ram_res->start - 1;
++ old_res->end = ram_res->start - 1;
+ }
+
+ crash_free_reserved_phys_range(ram_res->start, ram_res->end);
--- /dev/null
+From 59b0afd01b2ce353ab422ea9c8375b03db313a21 Mon Sep 17 00:00:00 2001
+From: Miaoqian Lin <linmq006@gmail.com>
+Date: Mon, 27 Oct 2025 23:09:34 +0800
+Subject: crypto: hisilicon/qm - Fix device reference leak in qm_get_qos_value
+
+From: Miaoqian Lin <linmq006@gmail.com>
+
+commit 59b0afd01b2ce353ab422ea9c8375b03db313a21 upstream.
+
+The qm_get_qos_value() function calls bus_find_device_by_name() which
+increases the device reference count, but fails to call put_device()
+to balance the reference count and lead to a device reference leak.
+
+Add put_device() calls in both the error path and success path to
+properly balance the reference count.
+
+Found via static analysis.
+
+Fixes: 22d7a6c39cab ("crypto: hisilicon/qm - add pci bdf number check")
+Cc: stable@vger.kernel.org
+Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
+Reviewed-by: Longfang Liu <liulongfang@huawei.com>
+Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/crypto/hisilicon/qm.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/crypto/hisilicon/qm.c
++++ b/drivers/crypto/hisilicon/qm.c
+@@ -3688,10 +3688,12 @@ static ssize_t qm_get_qos_value(struct h
+ pdev = container_of(dev, struct pci_dev, dev);
+ if (pci_physfn(pdev) != qm->pdev) {
+ pci_err(qm->pdev, "the pdev input does not match the pf!\n");
++ put_device(dev);
+ return -EINVAL;
+ }
+
+ *fun_index = pdev->devfn;
++ put_device(dev);
+
+ return 0;
+ }
--- /dev/null
+From 22a36e660d014925114feb09a2680bb3c2d1e279 Mon Sep 17 00:00:00 2001
+From: Vitaly Prosyak <vitaly.prosyak@amd.com>
+Date: Thu, 6 Nov 2025 12:35:53 -0500
+Subject: drm/amdgpu: disable peer-to-peer access for DCC-enabled GC12 VRAM surfaces
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Vitaly Prosyak <vitaly.prosyak@amd.com>
+
+commit 22a36e660d014925114feb09a2680bb3c2d1e279 upstream.
+
+Certain multi-GPU configurations (especially GFX12) may hit
+data corruption when a DCC-compressed VRAM surface is shared across GPUs
+using peer-to-peer (P2P) DMA transfers.
+
+Such surfaces rely on device-local metadata and cannot be safely accessed
+through a remote GPU’s page tables. Attempting to import a DCC-enabled
+surface through P2P leads to incorrect rendering or GPU faults.
+
+This change disables P2P for DCC-enabled VRAM buffers that are contiguous
+and allocated on GFX12+ hardware. In these cases, the importer falls back
+to the standard system-memory path, avoiding invalid access to compressed
+surfaces.
+
+Future work could consider optional migration (VRAM→System→VRAM) if a
+performance regression is observed when `attach->peer2peer = false`.
+
+Tested on:
+ - Dual RX 9700 XT (Navi4x) setup
+ - GNOME and Wayland compositor scenarios
+ - Confirmed no corruption after disabling P2P under these conditions
+v2: Remove check TTM_PL_VRAM & TTM_PL_FLAG_CONTIGUOUS.
+v3: simplify for upsteam and fix ip version check (Alex)
+
+Suggested-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
+Reviewed-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+(cherry picked from commit 9dff2bb709e6fbd97e263fd12bf12802d2b5a0cf)
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
+@@ -81,6 +81,18 @@ static int amdgpu_dma_buf_attach(struct
+ struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
+ struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
+
++ /*
++ * Disable peer-to-peer access for DCC-enabled VRAM surfaces on GFX12+.
++ * Such buffers cannot be safely accessed over P2P due to device-local
++ * compression metadata. Fallback to system-memory path instead.
++ * Device supports GFX12 (GC 12.x or newer)
++ * BO was created with the AMDGPU_GEM_CREATE_GFX12_DCC flag
++ *
++ */
++ if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(12, 0, 0) &&
++ bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC)
++ attach->peer2peer = false;
++
+ if (!amdgpu_dmabuf_is_xgmi_accessible(attach_adev, bo) &&
+ pci_p2pdma_distance(adev->pdev, attach->dev, false) < 0)
+ attach->peer2peer = false;
--- /dev/null
+From d15deafab5d722afb9e2f83c5edcdef9d9d98bd1 Mon Sep 17 00:00:00 2001
+From: Jonathan Kim <jonathan.kim@amd.com>
+Date: Thu, 6 Nov 2025 10:17:06 -0500
+Subject: drm/amdkfd: relax checks for over allocation of save area
+
+From: Jonathan Kim <jonathan.kim@amd.com>
+
+commit d15deafab5d722afb9e2f83c5edcdef9d9d98bd1 upstream.
+
+Over allocation of save area is not fatal, only under allocation is.
+ROCm has various components that independently claim authority over save
+area size.
+
+Unless KFD decides to claim single authority, relax size checks.
+
+Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
+Reviewed-by: Philip Yang <philip.yang@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+(cherry picked from commit 15bd4958fe38e763bc17b607ba55155254a01f55)
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/gpu/drm/amd/amdkfd/kfd_queue.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+--- a/drivers/gpu/drm/amd/amdkfd/kfd_queue.c
++++ b/drivers/gpu/drm/amd/amdkfd/kfd_queue.c
+@@ -297,16 +297,16 @@ int kfd_queue_acquire_buffers(struct kfd
+ goto out_err_unreserve;
+ }
+
+- if (properties->ctx_save_restore_area_size != topo_dev->node_props.cwsr_size) {
+- pr_debug("queue cwsr size 0x%x not equal to node cwsr size 0x%x\n",
++ if (properties->ctx_save_restore_area_size < topo_dev->node_props.cwsr_size) {
++ pr_debug("queue cwsr size 0x%x not sufficient for node cwsr size 0x%x\n",
+ properties->ctx_save_restore_area_size,
+ topo_dev->node_props.cwsr_size);
+ err = -EINVAL;
+ goto out_err_unreserve;
+ }
+
+- total_cwsr_size = (topo_dev->node_props.cwsr_size + topo_dev->node_props.debug_memory_size)
+- * NUM_XCC(pdd->dev->xcc_mask);
++ total_cwsr_size = (properties->ctx_save_restore_area_size +
++ topo_dev->node_props.debug_memory_size) * NUM_XCC(pdd->dev->xcc_mask);
+ total_cwsr_size = ALIGN(total_cwsr_size, PAGE_SIZE);
+
+ err = kfd_queue_buffer_get(vm, (void *)properties->ctx_save_restore_area_address,
+@@ -352,8 +352,8 @@ int kfd_queue_release_buffers(struct kfd
+ topo_dev = kfd_topology_device_by_id(pdd->dev->id);
+ if (!topo_dev)
+ return -EINVAL;
+- total_cwsr_size = (topo_dev->node_props.cwsr_size + topo_dev->node_props.debug_memory_size)
+- * NUM_XCC(pdd->dev->xcc_mask);
++ total_cwsr_size = (properties->ctx_save_restore_area_size +
++ topo_dev->node_props.debug_memory_size) * NUM_XCC(pdd->dev->xcc_mask);
+ total_cwsr_size = ALIGN(total_cwsr_size, PAGE_SIZE);
+
+ kfd_queue_buffer_svm_put(pdd, properties->ctx_save_restore_area_address, total_cwsr_size);
--- /dev/null
+From fd3ecda38fe0cb713d167b5477d25f6b350f0514 Mon Sep 17 00:00:00 2001
+From: Niravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
+Date: Tue, 11 Nov 2025 16:08:01 +0800
+Subject: EDAC/altera: Handle OCRAM ECC enable after warm reset
+
+From: Niravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
+
+commit fd3ecda38fe0cb713d167b5477d25f6b350f0514 upstream.
+
+The OCRAM ECC is always enabled either by the BootROM or by the Secure Device
+Manager (SDM) during a power-on reset on SoCFPGA.
+
+However, during a warm reset, the OCRAM content is retained to preserve data,
+while the control and status registers are reset to their default values. As
+a result, ECC must be explicitly re-enabled after a warm reset.
+
+Fixes: 17e47dc6db4f ("EDAC/altera: Add Stratix10 OCRAM ECC support")
+Signed-off-by: Niravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
+Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
+Acked-by: Dinh Nguyen <dinguyen@kernel.org>
+Cc: stable@vger.kernel.org
+Link: https://patch.msgid.link/20251111080801.1279401-1-niravkumarlaxmidas.rabara@altera.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/edac/altera_edac.c | 18 +++++++++++++++---
+ 1 file changed, 15 insertions(+), 3 deletions(-)
+
+--- a/drivers/edac/altera_edac.c
++++ b/drivers/edac/altera_edac.c
+@@ -1184,10 +1184,22 @@ altr_check_ocram_deps_init(struct altr_e
+ if (ret)
+ return ret;
+
+- /* Verify OCRAM has been initialized */
++ /*
++ * Verify that OCRAM has been initialized.
++ * During a warm reset, OCRAM contents are retained, but the control
++ * and status registers are reset to their default values. Therefore,
++ * ECC must be explicitly re-enabled in the control register.
++ * Error condition: if INITCOMPLETEA is clear and ECC_EN is already set.
++ */
+ if (!ecc_test_bits(ALTR_A10_ECC_INITCOMPLETEA,
+- (base + ALTR_A10_ECC_INITSTAT_OFST)))
+- return -ENODEV;
++ (base + ALTR_A10_ECC_INITSTAT_OFST))) {
++ if (!ecc_test_bits(ALTR_A10_ECC_EN,
++ (base + ALTR_A10_ECC_CTRL_OFST)))
++ ecc_set_bits(ALTR_A10_ECC_EN,
++ (base + ALTR_A10_ECC_CTRL_OFST));
++ else
++ return -ENODEV;
++ }
+
+ /* Enable IRQ on Single Bit Error */
+ writel(ALTR_A10_ECC_SERRINTEN, (base + ALTR_A10_ECC_ERRINTENS_OFST));
--- /dev/null
+From 281326be67252ac5794d1383f67526606b1d6b13 Mon Sep 17 00:00:00 2001
+From: Niravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
+Date: Tue, 11 Nov 2025 16:13:33 +0800
+Subject: EDAC/altera: Use INTTEST register for Ethernet and USB SBE injection
+
+From: Niravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
+
+commit 281326be67252ac5794d1383f67526606b1d6b13 upstream.
+
+The current single-bit error injection mechanism flips bits directly in ECC RAM
+by performing write and read operations. When the ECC RAM is actively used by
+the Ethernet or USB controller, this approach sometimes trigger a false
+double-bit error.
+
+Switch both Ethernet and USB EDAC devices to use the INTTEST register
+(altr_edac_a10_device_inject_fops) for single-bit error injection, similar to
+the existing double-bit error injection method.
+
+Fixes: 064acbd4f4ab ("EDAC, altera: Add Stratix10 peripheral support")
+Signed-off-by: Niravkumar L Rabara <niravkumarlaxmidas.rabara@altera.com>
+Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
+Acked-by: Dinh Nguyen <dinguyen@kernel.org>
+Cc: stable@vger.kernel.org
+Link: https://patch.msgid.link/20251111081333.1279635-1-niravkumarlaxmidas.rabara@altera.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/edac/altera_edac.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/edac/altera_edac.c
++++ b/drivers/edac/altera_edac.c
+@@ -1369,7 +1369,7 @@ static const struct edac_device_prv_data
+ .ue_set_mask = ALTR_A10_ECC_TDERRA,
+ .set_err_ofst = ALTR_A10_ECC_INTTEST_OFST,
+ .ecc_irq_handler = altr_edac_a10_ecc_irq,
+- .inject_fops = &altr_edac_a10_device_inject2_fops,
++ .inject_fops = &altr_edac_a10_device_inject_fops,
+ };
+
+ #endif /* CONFIG_EDAC_ALTERA_ETHERNET */
+@@ -1459,7 +1459,7 @@ static const struct edac_device_prv_data
+ .ue_set_mask = ALTR_A10_ECC_TDERRA,
+ .set_err_ofst = ALTR_A10_ECC_INTTEST_OFST,
+ .ecc_irq_handler = altr_edac_a10_ecc_irq,
+- .inject_fops = &altr_edac_a10_device_inject2_fops,
++ .inject_fops = &altr_edac_a10_device_inject_fops,
+ };
+
+ #endif /* CONFIG_EDAC_ALTERA_USB */
--- /dev/null
+From 895b4c0c79b092d732544011c3cecaf7322c36a1 Mon Sep 17 00:00:00 2001
+From: Wei Yang <albinwyang@tencent.com>
+Date: Sat, 25 Oct 2025 10:42:33 +0800
+Subject: fs/proc: fix uaf in proc_readdir_de()
+
+From: Wei Yang <albinwyang@tencent.com>
+
+commit 895b4c0c79b092d732544011c3cecaf7322c36a1 upstream.
+
+Pde is erased from subdir rbtree through rb_erase(), but not set the node
+to EMPTY, which may result in uaf access. We should use RB_CLEAR_NODE()
+set the erased node to EMPTY, then pde_subdir_next() will return NULL to
+avoid uaf access.
+
+We found an uaf issue while using stress-ng testing, need to run testcase
+getdent and tun in the same time. The steps of the issue is as follows:
+
+1) use getdent to traverse dir /proc/pid/net/dev_snmp6/, and current
+ pde is tun3;
+
+2) in the [time windows] unregister netdevice tun3 and tun2, and erase
+ them from rbtree. erase tun3 first, and then erase tun2. the
+ pde(tun2) will be released to slab;
+
+3) continue to getdent process, then pde_subdir_next() will return
+ pde(tun2) which is released, it will case uaf access.
+
+CPU 0 | CPU 1
+-------------------------------------------------------------------------
+traverse dir /proc/pid/net/dev_snmp6/ | unregister_netdevice(tun->dev) //tun3 tun2
+sys_getdents64() |
+ iterate_dir() |
+ proc_readdir() |
+ proc_readdir_de() | snmp6_unregister_dev()
+ pde_get(de); | proc_remove()
+ read_unlock(&proc_subdir_lock); | remove_proc_subtree()
+ | write_lock(&proc_subdir_lock);
+ [time window] | rb_erase(&root->subdir_node, &parent->subdir);
+ | write_unlock(&proc_subdir_lock);
+ read_lock(&proc_subdir_lock); |
+ next = pde_subdir_next(de); |
+ pde_put(de); |
+ de = next; //UAF |
+
+rbtree of dev_snmp6
+ |
+ pde(tun3)
+ / \
+ NULL pde(tun2)
+
+Link: https://lkml.kernel.org/r/20251025024233.158363-1-albin_yang@163.com
+Signed-off-by: Wei Yang <albinwyang@tencent.com>
+Cc: Al Viro <viro@zeniv.linux.org.uk>
+Cc: Christian Brauner <brauner@kernel.org>
+Cc: wangzijie <wangzijie1@honor.com>
+Cc: Alexey Dobriyan <adobriyan@gmail.com>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/proc/generic.c | 12 +++++++++---
+ 1 file changed, 9 insertions(+), 3 deletions(-)
+
+--- a/fs/proc/generic.c
++++ b/fs/proc/generic.c
+@@ -694,6 +694,12 @@ void pde_put(struct proc_dir_entry *pde)
+ }
+ }
+
++static void pde_erase(struct proc_dir_entry *pde, struct proc_dir_entry *parent)
++{
++ rb_erase(&pde->subdir_node, &parent->subdir);
++ RB_CLEAR_NODE(&pde->subdir_node);
++}
++
+ /*
+ * Remove a /proc entry and free it if it's not currently in use.
+ */
+@@ -716,7 +722,7 @@ void remove_proc_entry(const char *name,
+ WARN(1, "removing permanent /proc entry '%s'", de->name);
+ de = NULL;
+ } else {
+- rb_erase(&de->subdir_node, &parent->subdir);
++ pde_erase(de, parent);
+ if (S_ISDIR(de->mode))
+ parent->nlink--;
+ }
+@@ -760,7 +766,7 @@ int remove_proc_subtree(const char *name
+ root->parent->name, root->name);
+ return -EINVAL;
+ }
+- rb_erase(&root->subdir_node, &parent->subdir);
++ pde_erase(root, parent);
+
+ de = root;
+ while (1) {
+@@ -772,7 +778,7 @@ int remove_proc_subtree(const char *name
+ next->parent->name, next->name);
+ return -EINVAL;
+ }
+- rb_erase(&next->subdir_node, &de->subdir);
++ pde_erase(next, de);
+ de = next;
+ continue;
+ }
--- /dev/null
+From 56b3c85e153b84f27e6cff39623ba40a1ad299d3 Mon Sep 17 00:00:00 2001
+From: Song Liu <song@kernel.org>
+Date: Mon, 27 Oct 2025 10:50:21 -0700
+Subject: ftrace: Fix BPF fexit with livepatch
+
+From: Song Liu <song@kernel.org>
+
+commit 56b3c85e153b84f27e6cff39623ba40a1ad299d3 upstream.
+
+When livepatch is attached to the same function as bpf trampoline with
+a fexit program, bpf trampoline code calls register_ftrace_direct()
+twice. The first time will fail with -EAGAIN, and the second time it
+will succeed. This requires register_ftrace_direct() to unregister
+the address on the first attempt. Otherwise, the bpf trampoline cannot
+attach. Here is an easy way to reproduce this issue:
+
+ insmod samples/livepatch/livepatch-sample.ko
+ bpftrace -e 'fexit:cmdline_proc_show {}'
+ ERROR: Unable to attach probe: fexit:vmlinux:cmdline_proc_show...
+
+Fix this by cleaning up the hash when register_ftrace_function_nolock hits
+errors.
+
+Also, move the code that resets ops->func and ops->trampoline to the error
+path of register_ftrace_direct(); and add a helper function reset_direct()
+in register_ftrace_direct() and unregister_ftrace_direct().
+
+Fixes: d05cb470663a ("ftrace: Fix modification of direct_function hash while in use")
+Cc: stable@vger.kernel.org # v6.6+
+Reported-by: Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com>
+Closes: https://lore.kernel.org/live-patching/c5058315a39d4615b333e485893345be@crowdstrike.com/
+Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
+Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
+Acked-and-tested-by: Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com>
+Signed-off-by: Song Liu <song@kernel.org>
+Reviewed-by: Jiri Olsa <jolsa@kernel.org>
+Link: https://lore.kernel.org/r/20251027175023.1521602-2-song@kernel.org
+Signed-off-by: Alexei Starovoitov <ast@kernel.org>
+Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/bpf/trampoline.c | 5 -----
+ kernel/trace/ftrace.c | 20 ++++++++++++++------
+ 2 files changed, 14 insertions(+), 11 deletions(-)
+
+--- a/kernel/bpf/trampoline.c
++++ b/kernel/bpf/trampoline.c
+@@ -479,11 +479,6 @@ again:
+ * BPF_TRAMP_F_SHARE_IPMODIFY is set, we can generate the
+ * trampoline again, and retry register.
+ */
+- /* reset fops->func and fops->trampoline for re-register */
+- tr->fops->func = NULL;
+- tr->fops->trampoline = 0;
+-
+- /* free im memory and reallocate later */
+ bpf_tramp_image_free(im);
+ goto again;
+ }
+--- a/kernel/trace/ftrace.c
++++ b/kernel/trace/ftrace.c
+@@ -5894,6 +5894,17 @@ static void register_ftrace_direct_cb(st
+ free_ftrace_hash(fhp);
+ }
+
++static void reset_direct(struct ftrace_ops *ops, unsigned long addr)
++{
++ struct ftrace_hash *hash = ops->func_hash->filter_hash;
++
++ remove_direct_functions_hash(hash, addr);
++
++ /* cleanup for possible another register call */
++ ops->func = NULL;
++ ops->trampoline = 0;
++}
++
+ /**
+ * register_ftrace_direct - Call a custom trampoline directly
+ * for multiple functions registered in @ops
+@@ -5989,6 +6000,8 @@ int register_ftrace_direct(struct ftrace
+ ops->direct_call = addr;
+
+ err = register_ftrace_function_nolock(ops);
++ if (err)
++ reset_direct(ops, addr);
+
+ out_unlock:
+ mutex_unlock(&direct_mutex);
+@@ -6021,7 +6034,6 @@ EXPORT_SYMBOL_GPL(register_ftrace_direct
+ int unregister_ftrace_direct(struct ftrace_ops *ops, unsigned long addr,
+ bool free_filters)
+ {
+- struct ftrace_hash *hash = ops->func_hash->filter_hash;
+ int err;
+
+ if (check_direct_multi(ops))
+@@ -6031,13 +6043,9 @@ int unregister_ftrace_direct(struct ftra
+
+ mutex_lock(&direct_mutex);
+ err = unregister_ftrace_function(ops);
+- remove_direct_functions_hash(hash, addr);
++ reset_direct(ops, addr);
+ mutex_unlock(&direct_mutex);
+
+- /* cleanup for possible another register call */
+- ops->func = NULL;
+- ops->trampoline = 0;
+-
+ if (free_filters)
+ ftrace_free_filter(ops);
+ return err;
--- /dev/null
+From ac1499fcd40fe06479e9b933347b837ccabc2a40 Mon Sep 17 00:00:00 2001
+From: Chuang Wang <nashuiliang@gmail.com>
+Date: Tue, 11 Nov 2025 14:43:24 +0800
+Subject: ipv4: route: Prevent rt_bind_exception() from rebinding stale fnhe
+
+From: Chuang Wang <nashuiliang@gmail.com>
+
+commit ac1499fcd40fe06479e9b933347b837ccabc2a40 upstream.
+
+The sit driver's packet transmission path calls: sit_tunnel_xmit() ->
+update_or_create_fnhe(), which lead to fnhe_remove_oldest() being called
+to delete entries exceeding FNHE_RECLAIM_DEPTH+random.
+
+The race window is between fnhe_remove_oldest() selecting fnheX for
+deletion and the subsequent kfree_rcu(). During this time, the
+concurrent path's __mkroute_output() -> find_exception() can fetch the
+soon-to-be-deleted fnheX, and rt_bind_exception() then binds it with a
+new dst using a dst_hold(). When the original fnheX is freed via RCU,
+the dst reference remains permanently leaked.
+
+CPU 0 CPU 1
+__mkroute_output()
+ find_exception() [fnheX]
+ update_or_create_fnhe()
+ fnhe_remove_oldest() [fnheX]
+ rt_bind_exception() [bind dst]
+ RCU callback [fnheX freed, dst leak]
+
+This issue manifests as a device reference count leak and a warning in
+dmesg when unregistering the net device:
+
+ unregister_netdevice: waiting for sitX to become free. Usage count = N
+
+Ido Schimmel provided the simple test validation method [1].
+
+The fix clears 'oldest->fnhe_daddr' before calling fnhe_flush_routes().
+Since rt_bind_exception() checks this field, setting it to zero prevents
+the stale fnhe from being reused and bound to a new dst just before it
+is freed.
+
+[1]
+ip netns add ns1
+ip -n ns1 link set dev lo up
+ip -n ns1 address add 192.0.2.1/32 dev lo
+ip -n ns1 link add name dummy1 up type dummy
+ip -n ns1 route add 192.0.2.2/32 dev dummy1
+ip -n ns1 link add name gretap1 up arp off type gretap \
+ local 192.0.2.1 remote 192.0.2.2
+ip -n ns1 route add 198.51.0.0/16 dev gretap1
+taskset -c 0 ip netns exec ns1 mausezahn gretap1 \
+ -A 198.51.100.1 -B 198.51.0.0/16 -t udp -p 1000 -c 0 -q &
+taskset -c 2 ip netns exec ns1 mausezahn gretap1 \
+ -A 198.51.100.1 -B 198.51.0.0/16 -t udp -p 1000 -c 0 -q &
+sleep 10
+ip netns pids ns1 | xargs kill
+ip netns del ns1
+
+Cc: stable@vger.kernel.org
+Fixes: 67d6d681e15b ("ipv4: make exception cache less predictible")
+Signed-off-by: Chuang Wang <nashuiliang@gmail.com>
+Reviewed-by: Ido Schimmel <idosch@nvidia.com>
+Reviewed-by: Eric Dumazet <edumazet@google.com>
+Link: https://patch.msgid.link/20251111064328.24440-1-nashuiliang@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/ipv4/route.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/net/ipv4/route.c
++++ b/net/ipv4/route.c
+@@ -605,6 +605,11 @@ static void fnhe_remove_oldest(struct fn
+ oldest_p = fnhe_p;
+ }
+ }
++
++ /* Clear oldest->fnhe_daddr to prevent this fnhe from being
++ * rebound with new dsts in rt_bind_exception().
++ */
++ oldest->fnhe_daddr = 0;
+ fnhe_flush_routes(oldest);
+ *oldest_p = oldest->fnhe_next;
+ kfree_rcu(oldest, rcu);
--- /dev/null
+From 4e67526840fc55917581b90f6a4b65849a616dd8 Mon Sep 17 00:00:00 2001
+From: Huacai Chen <chenhuacai@loongson.cn>
+Date: Sun, 9 Nov 2025 16:02:00 +0800
+Subject: LoongArch: Use physical addresses for CSR_MERRENTRY/CSR_TLBRENTRY
+
+From: Huacai Chen <chenhuacai@loongson.cn>
+
+commit 4e67526840fc55917581b90f6a4b65849a616dd8 upstream.
+
+Now we use virtual addresses to fill CSR_MERRENTRY/CSR_TLBRENTRY, but
+hardware hope physical addresses. Now it works well because the high
+bits are ignored above PA_BITS (48 bits), but explicitly use physical
+addresses can avoid potential bugs. So fix it.
+
+Cc: stable@vger.kernel.org
+Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/loongarch/kernel/traps.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/loongarch/kernel/traps.c
++++ b/arch/loongarch/kernel/traps.c
+@@ -1123,8 +1123,8 @@ static void configure_exception_vector(v
+ tlbrentry = (unsigned long)exception_handlers + 80*VECSIZE;
+
+ csr_write64(eentry, LOONGARCH_CSR_EENTRY);
+- csr_write64(eentry, LOONGARCH_CSR_MERRENTRY);
+- csr_write64(tlbrentry, LOONGARCH_CSR_TLBRENTRY);
++ csr_write64(__pa(eentry), LOONGARCH_CSR_MERRENTRY);
++ csr_write64(__pa(tlbrentry), LOONGARCH_CSR_TLBRENTRY);
+ }
+
+ void per_cpu_trap_init(int cpu)
--- /dev/null
+From 0d6c356dd6547adac2b06b461528e3573f52d953 Mon Sep 17 00:00:00 2001
+From: "Isaac J. Manjarres" <isaacmanjarres@google.com>
+Date: Tue, 28 Oct 2025 12:10:12 -0700
+Subject: mm/mm_init: fix hash table order logging in alloc_large_system_hash()
+
+From: Isaac J. Manjarres <isaacmanjarres@google.com>
+
+commit 0d6c356dd6547adac2b06b461528e3573f52d953 upstream.
+
+When emitting the order of the allocation for a hash table,
+alloc_large_system_hash() unconditionally subtracts PAGE_SHIFT from log
+base 2 of the allocation size. This is not correct if the allocation size
+is smaller than a page, and yields a negative value for the order as seen
+below:
+
+TCP established hash table entries: 32 (order: -4, 256 bytes, linear) TCP
+bind hash table entries: 32 (order: -2, 1024 bytes, linear)
+
+Use get_order() to compute the order when emitting the hash table
+information to correctly handle cases where the allocation size is smaller
+than a page:
+
+TCP established hash table entries: 32 (order: 0, 256 bytes, linear) TCP
+bind hash table entries: 32 (order: 0, 1024 bytes, linear)
+
+Link: https://lkml.kernel.org/r/20251028191020.413002-1-isaacmanjarres@google.com
+Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
+Signed-off-by: Isaac J. Manjarres <isaacmanjarres@google.com>
+Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
+Reviewed-by: David Hildenbrand <david@redhat.com>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ mm/mm_init.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/mm/mm_init.c
++++ b/mm/mm_init.c
+@@ -2428,7 +2428,7 @@ void *__init alloc_large_system_hash(con
+ panic("Failed to allocate %s hash table\n", tablename);
+
+ pr_info("%s hash table entries: %ld (order: %d, %lu bytes, %s)\n",
+- tablename, 1UL << log2qty, ilog2(size) - PAGE_SHIFT, size,
++ tablename, 1UL << log2qty, get_order(size), size,
+ virt ? (huge ? "vmalloc hugepage" : "vmalloc") : "linear");
+
+ if (_hash_shift)
--- /dev/null
+From fc745ff317566ec299e16346ebb9eacc8fe5b9d2 Mon Sep 17 00:00:00 2001
+From: Kairui Song <kasong@tencent.com>
+Date: Wed, 22 Oct 2025 18:57:19 +0800
+Subject: mm/shmem: fix THP allocation and fallback loop
+
+From: Kairui Song <kasong@tencent.com>
+
+commit fc745ff317566ec299e16346ebb9eacc8fe5b9d2 upstream.
+
+The order check and fallback loop is updating the index value on every
+loop. This will cause the index to be wrongly aligned by a larger value
+while the loop shrinks the order.
+
+This may result in inserting and returning a folio of the wrong index and
+cause data corruption with some userspace workloads [1].
+
+[kasong@tencent.com: introduce a temporary variable to improve code]
+ Link: https://lkml.kernel.org/r/20251023065913.36925-1-ryncsn@gmail.com
+ Link: https://lore.kernel.org/linux-mm/CAMgjq7DqgAmj25nDUwwu1U2cSGSn8n4-Hqpgottedy0S6YYeUw@mail.gmail.com/ [1]
+Link: https://lkml.kernel.org/r/20251022105719.18321-1-ryncsn@gmail.com
+Link: https://lore.kernel.org/linux-mm/CAMgjq7DqgAmj25nDUwwu1U2cSGSn8n4-Hqpgottedy0S6YYeUw@mail.gmail.com/ [1]
+Fixes: e7a2ab7b3bb5 ("mm: shmem: add mTHP support for anonymous shmem")
+Closes: https://lore.kernel.org/linux-mm/CAMgjq7DqgAmj25nDUwwu1U2cSGSn8n4-Hqpgottedy0S6YYeUw@mail.gmail.com/
+Signed-off-by: Kairui Song <kasong@tencent.com>
+Acked-by: David Hildenbrand <david@redhat.com>
+Acked-by: Zi Yan <ziy@nvidia.com>
+Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
+Reviewed-by: Barry Song <baohua@kernel.org>
+Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
+Cc: Dev Jain <dev.jain@arm.com>
+Cc: Hugh Dickins <hughd@google.com>
+Cc: Liam Howlett <liam.howlett@oracle.com>
+Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
+Cc: Nico Pache <npache@redhat.com>
+Cc: Ryan Roberts <ryan.roberts@arm.com>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ mm/shmem.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -1785,6 +1785,7 @@ static struct folio *shmem_alloc_and_add
+ struct shmem_inode_info *info = SHMEM_I(inode);
+ unsigned long suitable_orders = 0;
+ struct folio *folio = NULL;
++ pgoff_t aligned_index;
+ long pages;
+ int error, order;
+
+@@ -1798,10 +1799,12 @@ static struct folio *shmem_alloc_and_add
+ order = highest_order(suitable_orders);
+ while (suitable_orders) {
+ pages = 1UL << order;
+- index = round_down(index, pages);
+- folio = shmem_alloc_folio(gfp, order, info, index);
+- if (folio)
++ aligned_index = round_down(index, pages);
++ folio = shmem_alloc_folio(gfp, order, info, aligned_index);
++ if (folio) {
++ index = aligned_index;
+ goto allocated;
++ }
+
+ if (pages == HPAGE_PMD_NR)
+ count_vm_event(THP_FILE_FALLBACK);
--- /dev/null
+From 739f04f4a46237536aff07ff223c231da53ed8ce Mon Sep 17 00:00:00 2001
+From: Shawn Lin <shawn.lin@rock-chips.com>
+Date: Tue, 4 Nov 2025 11:51:23 +0800
+Subject: mmc: dw_mmc-rockchip: Fix wrong internal phase calculate
+
+From: Shawn Lin <shawn.lin@rock-chips.com>
+
+commit 739f04f4a46237536aff07ff223c231da53ed8ce upstream.
+
+ciu clock is 2 times of io clock, but the sample clk used is
+derived from io clock provided to the card. So we should use
+io clock to calculate the phase.
+
+Fixes: 59903441f5e4 ("mmc: dw_mmc-rockchip: Add internal phase support")
+Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
+Acked-by: Heiko Stuebner <heiko@sntech.de>
+Cc: stable@vger.kernel.org
+Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/mmc/host/dw_mmc-rockchip.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/mmc/host/dw_mmc-rockchip.c
++++ b/drivers/mmc/host/dw_mmc-rockchip.c
+@@ -43,7 +43,7 @@ struct dw_mci_rockchip_priv_data {
+ */
+ static int rockchip_mmc_get_internal_phase(struct dw_mci *host, bool sample)
+ {
+- unsigned long rate = clk_get_rate(host->ciu_clk);
++ unsigned long rate = clk_get_rate(host->ciu_clk) / RK3288_CLKGEN_DIV;
+ u32 raw_value;
+ u16 degrees;
+ u32 delay_num = 0;
+@@ -86,7 +86,7 @@ static int rockchip_mmc_get_phase(struct
+
+ static int rockchip_mmc_set_internal_phase(struct dw_mci *host, bool sample, int degrees)
+ {
+- unsigned long rate = clk_get_rate(host->ciu_clk);
++ unsigned long rate = clk_get_rate(host->ciu_clk) / RK3288_CLKGEN_DIV;
+ u8 nineties, remainder;
+ u8 delay_num;
+ u32 raw_value;
--- /dev/null
+From a28352cf2d2f8380e7aca8cb61682396dca7a991 Mon Sep 17 00:00:00 2001
+From: Shawn Lin <shawn.lin@rock-chips.com>
+Date: Mon, 20 Oct 2025 09:49:41 +0800
+Subject: mmc: sdhci-of-dwcmshc: Change DLL_STRBIN_TAPNUM_DEFAULT to 0x4
+
+From: Shawn Lin <shawn.lin@rock-chips.com>
+
+commit a28352cf2d2f8380e7aca8cb61682396dca7a991 upstream.
+
+strbin signal delay under 0x8 configuration is not stable after massive
+test. The recommandation of it should be 0x4.
+
+Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
+Tested-by: Alexey Charkov <alchark@gmail.com>
+Tested-by: Hugh Cole-Baker <sigmaris@gmail.com>
+Fixes: 08f3dff799d4 ("mmc: sdhci-of-dwcmshc: add rockchip platform support")
+Cc: stable@vger.kernel.org
+Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/mmc/host/sdhci-of-dwcmshc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
++++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
+@@ -94,7 +94,7 @@
+ #define DLL_TXCLK_TAPNUM_DEFAULT 0x10
+ #define DLL_TXCLK_TAPNUM_90_DEGREES 0xA
+ #define DLL_TXCLK_TAPNUM_FROM_SW BIT(24)
+-#define DLL_STRBIN_TAPNUM_DEFAULT 0x8
++#define DLL_STRBIN_TAPNUM_DEFAULT 0x4
+ #define DLL_STRBIN_TAPNUM_FROM_SW BIT(24)
+ #define DLL_STRBIN_DELAY_NUM_SEL BIT(26)
+ #define DLL_STRBIN_DELAY_NUM_OFFSET 16
--- /dev/null
+From 9a6b60cb147d53968753a34805211d2e5e08c027 Mon Sep 17 00:00:00 2001
+From: Edward Adam Davis <eadavis@qq.com>
+Date: Thu, 30 Oct 2025 07:51:52 +0900
+Subject: nilfs2: avoid having an active sc_timer before freeing sci
+
+From: Edward Adam Davis <eadavis@qq.com>
+
+commit 9a6b60cb147d53968753a34805211d2e5e08c027 upstream.
+
+Because kthread_stop did not stop sc_task properly and returned -EINTR,
+the sc_timer was not properly closed, ultimately causing the problem [1]
+reported by syzbot when freeing sci due to the sc_timer not being closed.
+
+Because the thread sc_task main function nilfs_segctor_thread() returns 0
+when it succeeds, when the return value of kthread_stop() is not 0 in
+nilfs_segctor_destroy(), we believe that it has not properly closed
+sc_timer.
+
+We use timer_shutdown_sync() to sync wait for sc_timer to shutdown, and
+set the value of sc_task to NULL under the protection of lock
+sc_state_lock, so as to avoid the issue caused by sc_timer not being
+properly shutdowned.
+
+[1]
+ODEBUG: free active (active state 0) object: 00000000dacb411a object type: timer_list hint: nilfs_construction_timeout
+Call trace:
+ nilfs_segctor_destroy fs/nilfs2/segment.c:2811 [inline]
+ nilfs_detach_log_writer+0x668/0x8cc fs/nilfs2/segment.c:2877
+ nilfs_put_super+0x4c/0x12c fs/nilfs2/super.c:509
+
+Link: https://lkml.kernel.org/r/20251029225226.16044-1-konishi.ryusuke@gmail.com
+Fixes: 3f66cc261ccb ("nilfs2: use kthread_create and kthread_stop for the log writer thread")
+Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
+Reported-by: syzbot+24d8b70f039151f65590@syzkaller.appspotmail.com
+Closes: https://syzkaller.appspot.com/bug?extid=24d8b70f039151f65590
+Tested-by: syzbot+24d8b70f039151f65590@syzkaller.appspotmail.com
+Signed-off-by: Edward Adam Davis <eadavis@qq.com>
+Cc: <stable@vger.kernel.org> [6.12+]
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/nilfs2/segment.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+--- a/fs/nilfs2/segment.c
++++ b/fs/nilfs2/segment.c
+@@ -2787,7 +2787,12 @@ static void nilfs_segctor_destroy(struct
+
+ if (sci->sc_task) {
+ wake_up(&sci->sc_wait_daemon);
+- kthread_stop(sci->sc_task);
++ if (kthread_stop(sci->sc_task)) {
++ spin_lock(&sci->sc_state_lock);
++ sci->sc_task = NULL;
++ timer_shutdown_sync(&sci->sc_timer);
++ spin_unlock(&sci->sc_state_lock);
++ }
+ }
+
+ spin_lock(&sci->sc_state_lock);
--- /dev/null
+From 62b9ca1706e1bbb60d945a58de7c7b5826f6b2a2 Mon Sep 17 00:00:00 2001
+From: "Mario Limonciello (AMD)" <superm1@kernel.org>
+Date: Wed, 5 Nov 2025 22:51:05 -0600
+Subject: PM: hibernate: Emit an error when image writing fails
+
+From: Mario Limonciello (AMD) <superm1@kernel.org>
+
+commit 62b9ca1706e1bbb60d945a58de7c7b5826f6b2a2 upstream.
+
+If image writing fails, a return code is passed up to the caller, but
+none of the callers log anything to the log and so the only record
+of it is the return code that userspace gets.
+
+Adjust the logging so that the image size and speed of writing is
+only emitted on success and if there is an error, it's saved to the
+logs.
+
+Fixes: a06c6f5d3cc9 ("PM: hibernate: Move to crypto APIs for LZO compression")
+Reported-by: Askar Safin <safinaskar@gmail.com>
+Closes: https://lore.kernel.org/linux-pm/20251105180506.137448-1-safinaskar@gmail.com/
+Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
+Tested-by: Askar Safin <safinaskar@gmail.com>
+Cc: 6.9+ <stable@vger.kernel.org> # 6.9+
+[ rjw: Added missing braces after "else", changelog edits ]
+Link: https://patch.msgid.link/20251106045158.3198061-2-superm1@kernel.org
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/power/swap.c | 11 +++++++----
+ 1 file changed, 7 insertions(+), 4 deletions(-)
+
+--- a/kernel/power/swap.c
++++ b/kernel/power/swap.c
+@@ -882,11 +882,14 @@ out_finish:
+ stop = ktime_get();
+ if (!ret)
+ ret = err2;
+- if (!ret)
++ if (!ret) {
++ swsusp_show_speed(start, stop, nr_to_write, "Wrote");
++ pr_info("Image size after compression: %d kbytes\n",
++ (atomic_read(&compressed_size) / 1024));
+ pr_info("Image saving done\n");
+- swsusp_show_speed(start, stop, nr_to_write, "Wrote");
+- pr_info("Image size after compression: %d kbytes\n",
+- (atomic_read(&compressed_size) / 1024));
++ } else {
++ pr_err("Image saving failed: %d\n", ret);
++ }
+
+ out_clean:
+ hib_finish_batch(&hb);
--- /dev/null
+From 66ededc694f1d06a71ca35a3c8e3689e9b85b3ce Mon Sep 17 00:00:00 2001
+From: "Mario Limonciello (AMD)" <superm1@kernel.org>
+Date: Wed, 5 Nov 2025 22:51:06 -0600
+Subject: PM: hibernate: Use atomic64_t for compressed_size variable
+
+From: Mario Limonciello (AMD) <superm1@kernel.org>
+
+commit 66ededc694f1d06a71ca35a3c8e3689e9b85b3ce upstream.
+
+`compressed_size` can overflow, showing nonsensical values.
+
+Change from `atomic_t` to `atomic64_t` to prevent overflow.
+
+Fixes: a06c6f5d3cc9 ("PM: hibernate: Move to crypto APIs for LZO compression")
+Reported-by: Askar Safin <safinaskar@gmail.com>
+Closes: https://lore.kernel.org/linux-pm/20251105180506.137448-1-safinaskar@gmail.com/
+Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
+Tested-by: Askar Safin <safinaskar@gmail.com>
+Cc: 6.9+ <stable@vger.kernel.org> # 6.9+
+Link: https://patch.msgid.link/20251106045158.3198061-3-superm1@kernel.org
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/power/swap.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+--- a/kernel/power/swap.c
++++ b/kernel/power/swap.c
+@@ -648,7 +648,7 @@ struct cmp_data {
+ };
+
+ /* Indicates the image size after compression */
+-static atomic_t compressed_size = ATOMIC_INIT(0);
++static atomic64_t compressed_size = ATOMIC_INIT(0);
+
+ /*
+ * Compression function that runs in its own thread.
+@@ -676,7 +676,7 @@ static int compress_threadfn(void *data)
+ &cmp_len);
+ d->cmp_len = cmp_len;
+
+- atomic_set(&compressed_size, atomic_read(&compressed_size) + d->cmp_len);
++ atomic64_add(d->cmp_len, &compressed_size);
+ atomic_set_release(&d->stop, 1);
+ wake_up(&d->done);
+ }
+@@ -708,7 +708,7 @@ static int save_compressed_image(struct
+
+ hib_init_batch(&hb);
+
+- atomic_set(&compressed_size, 0);
++ atomic64_set(&compressed_size, 0);
+
+ /*
+ * We'll limit the number of threads for compression to limit memory
+@@ -884,8 +884,8 @@ out_finish:
+ ret = err2;
+ if (!ret) {
+ swsusp_show_speed(start, stop, nr_to_write, "Wrote");
+- pr_info("Image size after compression: %d kbytes\n",
+- (atomic_read(&compressed_size) / 1024));
++ pr_info("Image size after compression: %lld kbytes\n",
++ (atomic64_read(&compressed_size) / 1024));
+ pr_info("Image saving done\n");
+ } else {
+ pr_err("Image saving failed: %d\n", ret);
--- /dev/null
+From 7458f72cc28f9eb0de811effcb5376d0ec19094a Mon Sep 17 00:00:00 2001
+From: Sudeep Holla <sudeep.holla@arm.com>
+Date: Fri, 17 Oct 2025 12:03:20 +0100
+Subject: pmdomain: arm: scmi: Fix genpd leak on provider registration failure
+
+From: Sudeep Holla <sudeep.holla@arm.com>
+
+commit 7458f72cc28f9eb0de811effcb5376d0ec19094a upstream.
+
+If of_genpd_add_provider_onecell() fails during probe, the previously
+created generic power domains are not removed, leading to a memory leak
+and potential kernel crash later in genpd_debug_add().
+
+Add proper error handling to unwind the initialized domains before
+returning from probe to ensure all resources are correctly released on
+failure.
+
+Example crash trace observed without this fix:
+
+ | Unable to handle kernel paging request at virtual address fffffffffffffc70
+ | CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.18.0-rc1 #405 PREEMPT
+ | Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development Platform
+ | pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
+ | pc : genpd_debug_add+0x2c/0x160
+ | lr : genpd_debug_init+0x74/0x98
+ | Call trace:
+ | genpd_debug_add+0x2c/0x160 (P)
+ | genpd_debug_init+0x74/0x98
+ | do_one_initcall+0xd0/0x2d8
+ | do_initcall_level+0xa0/0x140
+ | do_initcalls+0x60/0xa8
+ | do_basic_setup+0x28/0x40
+ | kernel_init_freeable+0xe8/0x170
+ | kernel_init+0x2c/0x140
+ | ret_from_fork+0x10/0x20
+
+Fixes: 898216c97ed2 ("firmware: arm_scmi: add device power domain support using genpd")
+Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
+Reviewed-by: Peng Fan <peng.fan@nxp.com>
+Cc: stable@vger.kernel.org
+Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/pmdomain/arm/scmi_pm_domain.c | 13 +++++++++++--
+ 1 file changed, 11 insertions(+), 2 deletions(-)
+
+--- a/drivers/pmdomain/arm/scmi_pm_domain.c
++++ b/drivers/pmdomain/arm/scmi_pm_domain.c
+@@ -54,7 +54,7 @@ static int scmi_pd_power_off(struct gene
+
+ static int scmi_pm_domain_probe(struct scmi_device *sdev)
+ {
+- int num_domains, i;
++ int num_domains, i, ret;
+ struct device *dev = &sdev->dev;
+ struct device_node *np = dev->of_node;
+ struct scmi_pm_domain *scmi_pd;
+@@ -113,9 +113,18 @@ static int scmi_pm_domain_probe(struct s
+ scmi_pd_data->domains = domains;
+ scmi_pd_data->num_domains = num_domains;
+
++ ret = of_genpd_add_provider_onecell(np, scmi_pd_data);
++ if (ret)
++ goto err_rm_genpds;
++
+ dev_set_drvdata(dev, scmi_pd_data);
+
+- return of_genpd_add_provider_onecell(np, scmi_pd_data);
++ return 0;
++err_rm_genpds:
++ for (i = num_domains - 1; i >= 0; i--)
++ pm_genpd_remove(domains[i]);
++
++ return ret;
+ }
+
+ static void scmi_pm_domain_remove(struct scmi_device *sdev)
--- /dev/null
+From bbde14682eba21d86f5f3d6fe2d371b1f97f1e61 Mon Sep 17 00:00:00 2001
+From: Miaoqian Lin <linmq006@gmail.com>
+Date: Tue, 28 Oct 2025 11:16:20 +0800
+Subject: pmdomain: imx: Fix reference count leak in imx_gpc_remove
+
+From: Miaoqian Lin <linmq006@gmail.com>
+
+commit bbde14682eba21d86f5f3d6fe2d371b1f97f1e61 upstream.
+
+of_get_child_by_name() returns a node pointer with refcount incremented, we
+should use of_node_put() on it when not needed anymore. Add the missing
+of_node_put() to avoid refcount leak.
+
+Fixes: 721cabf6c660 ("soc: imx: move PGC handling to a new GPC driver")
+Cc: stable@vger.kernel.org
+Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
+Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/pmdomain/imx/gpc.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/pmdomain/imx/gpc.c
++++ b/drivers/pmdomain/imx/gpc.c
+@@ -537,6 +537,8 @@ static void imx_gpc_remove(struct platfo
+ return;
+ }
+ }
++
++ of_node_put(pgc_node);
+ }
+
+ static struct platform_driver imx_gpc_driver = {
--- /dev/null
+From 90c82941adf1986364e0f82c35cf59f2bf5f6a1d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <andre.draszik@linaro.org>
+Date: Thu, 16 Oct 2025 16:58:37 +0100
+Subject: pmdomain: samsung: plug potential memleak during probe
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: André Draszik <andre.draszik@linaro.org>
+
+commit 90c82941adf1986364e0f82c35cf59f2bf5f6a1d upstream.
+
+of_genpd_add_provider_simple() could fail, in which case this code
+leaks the domain name, pd->pd.name.
+
+Use devm_kstrdup_const() to plug this leak. As a side-effect, we can
+simplify existing error handling.
+
+Fixes: c09a3e6c97f0 ("soc: samsung: pm_domains: Convert to regular platform driver")
+Cc: stable@vger.kernel.org
+Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
+Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+Signed-off-by: André Draszik <andre.draszik@linaro.org>
+Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
+Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/pmdomain/samsung/exynos-pm-domains.c | 11 +++++------
+ 1 file changed, 5 insertions(+), 6 deletions(-)
+
+--- a/drivers/pmdomain/samsung/exynos-pm-domains.c
++++ b/drivers/pmdomain/samsung/exynos-pm-domains.c
+@@ -92,13 +92,14 @@ static const struct of_device_id exynos_
+ { },
+ };
+
+-static const char *exynos_get_domain_name(struct device_node *node)
++static const char *exynos_get_domain_name(struct device *dev,
++ struct device_node *node)
+ {
+ const char *name;
+
+ if (of_property_read_string(node, "label", &name) < 0)
+ name = kbasename(node->full_name);
+- return kstrdup_const(name, GFP_KERNEL);
++ return devm_kstrdup_const(dev, name, GFP_KERNEL);
+ }
+
+ static int exynos_pd_probe(struct platform_device *pdev)
+@@ -115,15 +116,13 @@ static int exynos_pd_probe(struct platfo
+ if (!pd)
+ return -ENOMEM;
+
+- pd->pd.name = exynos_get_domain_name(np);
++ pd->pd.name = exynos_get_domain_name(dev, np);
+ if (!pd->pd.name)
+ return -ENOMEM;
+
+ pd->base = of_iomap(np, 0);
+- if (!pd->base) {
+- kfree_const(pd->pd.name);
++ if (!pd->base)
+ return -ENODEV;
+- }
+
+ pd->pd.power_off = exynos_pd_power_off;
+ pd->pd.power_on = exynos_pd_power_on;
--- /dev/null
+From 63c643aa7b7287fdbb0167063785f89ece3f000f Mon Sep 17 00:00:00 2001
+From: "Matthieu Baerts (NGI0)" <matttbe@kernel.org>
+Date: Mon, 10 Nov 2025 19:23:40 +0100
+Subject: selftests: mptcp: connect: fix fallback note due to OoO
+
+From: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+
+commit 63c643aa7b7287fdbb0167063785f89ece3f000f upstream.
+
+The "fallback due to TCP OoO" was never printed because the stat_ooo_now
+variable was checked twice: once in the parent if-statement, and one in
+the child one. The second condition was then always true then, and the
+'else' branch was never taken.
+
+The idea is that when there are more ACK + MP_CAPABLE than expected, the
+test either fails if there was no out of order packets, or a notice is
+printed.
+
+Fixes: 69ca3d29a755 ("mptcp: update selftest for fallback due to OoO")
+Cc: stable@vger.kernel.org
+Reviewed-by: Geliang Tang <geliang@kernel.org>
+Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+Link: https://patch.msgid.link/20251110-net-mptcp-sft-join-unstable-v1-1-a4332c714e10@kernel.org
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/net/mptcp/mptcp_connect.sh | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh
++++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
+@@ -493,7 +493,7 @@ do_transfer()
+ "than expected (${expect_synrx})"
+ retc=1
+ fi
+- if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ] && [ ${stat_ooo_now} -eq 0 ]; then
++ if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ]; then
+ if [ ${stat_ooo_now} -eq 0 ]; then
+ mptcp_lib_pr_fail "lower MPC ACK rx (${stat_ackrx_now_l})" \
+ "than expected (${expect_ackrx})"
--- /dev/null
+From ee79980f7a428ec299f6261bea4c1084dcbc9631 Mon Sep 17 00:00:00 2001
+From: "Matthieu Baerts (NGI0)" <matttbe@kernel.org>
+Date: Mon, 10 Nov 2025 19:23:44 +0100
+Subject: selftests: mptcp: connect: trunc: read all recv data
+
+From: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+
+commit ee79980f7a428ec299f6261bea4c1084dcbc9631 upstream.
+
+MPTCP Join "fastclose server" selftest is sometimes failing because the
+client output file doesn't have the expected size, e.g. 296B instead of
+1024B.
+
+When looking at a packet trace when this happens, the server sent the
+expected 1024B in two parts -- 100B, then 924B -- then the MP_FASTCLOSE.
+It is then strange to see the client only receiving 296B, which would
+mean it only got a part of the second packet. The problem is then not on
+the networking side, but rather on the data reception side.
+
+When mptcp_connect is launched with '-f -1', it means the connection
+might stop before having sent everything, because a reset has been
+received. When this happens, the program was directly stopped. But it is
+also possible there are still some data to read, simply because the
+previous 'read' step was done with a buffer smaller than the pending
+data, see do_rnd_read(). In this case, it is important to read what's
+left in the kernel buffers before stopping without error like before.
+
+SIGPIPE is now ignored, not to quit the app before having read
+everything.
+
+Fixes: 6bf41020b72b ("selftests: mptcp: update and extend fastclose test-cases")
+Cc: stable@vger.kernel.org
+Reviewed-by: Geliang Tang <geliang@kernel.org>
+Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+Link: https://patch.msgid.link/20251110-net-mptcp-sft-join-unstable-v1-5-a4332c714e10@kernel.org
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/net/mptcp/mptcp_connect.c | 18 +++++++++++++-----
+ 1 file changed, 13 insertions(+), 5 deletions(-)
+
+--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
++++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
+@@ -696,8 +696,14 @@ static int copyfd_io_poll(int infd, int
+
+ bw = do_rnd_write(peerfd, winfo->buf + winfo->off, winfo->len);
+ if (bw < 0) {
+- if (cfg_rcv_trunc)
+- return 0;
++ /* expected reset, continue to read */
++ if (cfg_rcv_trunc &&
++ (errno == ECONNRESET ||
++ errno == EPIPE)) {
++ fds.events &= ~POLLOUT;
++ continue;
++ }
++
+ perror("write");
+ return 111;
+ }
+@@ -723,8 +729,10 @@ static int copyfd_io_poll(int infd, int
+ }
+
+ if (fds.revents & (POLLERR | POLLNVAL)) {
+- if (cfg_rcv_trunc)
+- return 0;
++ if (cfg_rcv_trunc) {
++ fds.events &= ~(POLLERR | POLLNVAL);
++ continue;
++ }
+ fprintf(stderr, "Unexpected revents: "
+ "POLLERR/POLLNVAL(%x)\n", fds.revents);
+ return 5;
+@@ -1419,7 +1427,7 @@ static void parse_opts(int argc, char **
+ */
+ if (cfg_truncate < 0) {
+ cfg_rcv_trunc = true;
+- signal(SIGPIPE, handle_signal);
++ signal(SIGPIPE, SIG_IGN);
+ }
+ break;
+ case 'j':
--- /dev/null
+From 6457595db9870298ee30b6d75287b8548e33fe19 Mon Sep 17 00:00:00 2001
+From: "Matthieu Baerts (NGI0)" <matttbe@kernel.org>
+Date: Mon, 10 Nov 2025 19:23:42 +0100
+Subject: selftests: mptcp: join: endpoints: longer transfer
+
+From: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+
+commit 6457595db9870298ee30b6d75287b8548e33fe19 upstream.
+
+In rare cases, when the test environment is very slow, some userspace
+tests can fail because some expected events have not been seen.
+
+Because the tests are expecting a long on-going connection, and they are
+not waiting for the end of the transfer, it is fine to make the
+connection longer. This connection will be killed at the end, after the
+verifications, so making it longer doesn't change anything, apart from
+avoid it to end before the end of the verifications
+
+To play it safe, all endpoints tests not waiting for the end of the
+transfer are now sharing a longer file (128KB) at slow speed.
+
+Fixes: 69c6ce7b6eca ("selftests: mptcp: add implicit endpoint test case")
+Cc: stable@vger.kernel.org
+Fixes: e274f7154008 ("selftests: mptcp: add subflow limits test-cases")
+Fixes: b5e2fb832f48 ("selftests: mptcp: add explicit test case for remove/readd")
+Fixes: e06959e9eebd ("selftests: mptcp: join: test for flush/re-add endpoints")
+Reviewed-by: Geliang Tang <geliang@kernel.org>
+Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+Link: https://patch.msgid.link/20251110-net-mptcp-sft-join-unstable-v1-3-a4332c714e10@kernel.org
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/net/mptcp/mptcp_join.sh | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
++++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
+@@ -3728,7 +3728,7 @@ endpoint_tests()
+ pm_nl_set_limits $ns1 2 2
+ pm_nl_set_limits $ns2 2 2
+ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+- { speed=slow \
++ { test_linkfail=128 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+
+@@ -3755,7 +3755,7 @@ endpoint_tests()
+ pm_nl_set_limits $ns2 0 3
+ pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
+ pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
+- { test_linkfail=4 speed=5 \
++ { test_linkfail=128 speed=5 \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+
+@@ -3833,7 +3833,7 @@ endpoint_tests()
+ # broadcast IP: no packet for this address will be received on ns1
+ pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
+ pm_nl_add_endpoint $ns1 10.0.1.1 id 42 flags signal
+- { test_linkfail=4 speed=5 \
++ { test_linkfail=128 speed=5 \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+
+@@ -3906,7 +3906,7 @@ endpoint_tests()
+ # broadcast IP: no packet for this address will be received on ns1
+ pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
+ pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
+- { test_linkfail=4 speed=20 \
++ { test_linkfail=128 speed=20 \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+
--- /dev/null
+From 852b644acbce1529307a4bb283752c4e77b5cda7 Mon Sep 17 00:00:00 2001
+From: "Matthieu Baerts (NGI0)" <matttbe@kernel.org>
+Date: Mon, 10 Nov 2025 19:23:45 +0100
+Subject: selftests: mptcp: join: properly kill background tasks
+
+From: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+
+commit 852b644acbce1529307a4bb283752c4e77b5cda7 upstream.
+
+The 'run_tests' function is executed in the background, but killing its
+associated PID would not kill the children tasks running in the
+background.
+
+To properly kill all background tasks, 'kill -- -PID' could be used, but
+this requires kill from procps-ng. Instead, all children tasks are
+listed using 'ps', and 'kill' is called with all PIDs of this group.
+
+Fixes: 31ee4ad86afd ("selftests: mptcp: join: stop transfer when check is done (part 1)")
+Cc: stable@vger.kernel.org
+Fixes: 04b57c9e096a ("selftests: mptcp: join: stop transfer when check is done (part 2)")
+Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+Link: https://patch.msgid.link/20251110-net-mptcp-sft-join-unstable-v1-6-a4332c714e10@kernel.org
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/net/mptcp/mptcp_join.sh | 18 +++++++++---------
+ tools/testing/selftests/net/mptcp/mptcp_lib.sh | 21 +++++++++++++++++++++
+ 2 files changed, 30 insertions(+), 9 deletions(-)
+
+--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
++++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
+@@ -3616,7 +3616,7 @@ userspace_tests()
+ chk_mptcp_info subflows 0 subflows 0
+ chk_subflows_total 1 1
+ kill_events_pids
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+ fi
+
+ # userspace pm create destroy subflow
+@@ -3644,7 +3644,7 @@ userspace_tests()
+ chk_mptcp_info subflows 0 subflows 0
+ chk_subflows_total 1 1
+ kill_events_pids
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+ fi
+
+ # userspace pm create id 0 subflow
+@@ -3665,7 +3665,7 @@ userspace_tests()
+ chk_mptcp_info subflows 1 subflows 1
+ chk_subflows_total 2 2
+ kill_events_pids
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+ fi
+
+ # userspace pm remove initial subflow
+@@ -3689,7 +3689,7 @@ userspace_tests()
+ chk_mptcp_info subflows 1 subflows 1
+ chk_subflows_total 1 1
+ kill_events_pids
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+ fi
+
+ # userspace pm send RM_ADDR for ID 0
+@@ -3715,7 +3715,7 @@ userspace_tests()
+ chk_mptcp_info subflows 1 subflows 1
+ chk_subflows_total 1 1
+ kill_events_pids
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+ fi
+ }
+
+@@ -3745,7 +3745,7 @@ endpoint_tests()
+ pm_nl_add_endpoint $ns2 10.0.2.2 flags signal
+ pm_nl_check_endpoint "modif is allowed" \
+ $ns2 10.0.2.2 id 1 flags signal
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+ fi
+
+ if reset_with_tcp_filter "delete and re-add" ns2 10.0.3.2 REJECT OUTPUT &&
+@@ -3800,7 +3800,7 @@ endpoint_tests()
+ chk_mptcp_info subflows 3 subflows 3
+ done
+
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+
+ kill_events_pids
+ chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
+@@ -3874,7 +3874,7 @@ endpoint_tests()
+ wait_mpj $ns2
+ chk_subflow_nr "after re-re-add ID 0" 3
+ chk_mptcp_info subflows 3 subflows 3
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+
+ kill_events_pids
+ chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
+@@ -3922,7 +3922,7 @@ endpoint_tests()
+ wait_mpj $ns2
+ pm_nl_add_endpoint $ns1 10.0.3.1 id 2 flags signal
+ wait_mpj $ns2
+- mptcp_lib_kill_wait $tests_pid
++ mptcp_lib_kill_group_wait $tests_pid
+
+ join_syn_tx=3 join_connect_err=1 \
+ chk_join_nr 2 2 2
+--- a/tools/testing/selftests/net/mptcp/mptcp_lib.sh
++++ b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
+@@ -327,6 +327,27 @@ mptcp_lib_kill_wait() {
+ wait "${1}" 2>/dev/null
+ }
+
++# $1: PID
++mptcp_lib_pid_list_children() {
++ local curr="${1}"
++ # evoke 'ps' only once
++ local pids="${2:-"$(ps o pid,ppid)"}"
++
++ echo "${curr}"
++
++ local pid
++ for pid in $(echo "${pids}" | awk "\$2 == ${curr} { print \$1 }"); do
++ mptcp_lib_pid_list_children "${pid}" "${pids}"
++ done
++}
++
++# $1: PID
++mptcp_lib_kill_group_wait() {
++ # Some users might not have procps-ng: cannot use "kill -- -PID"
++ mptcp_lib_pid_list_children "${1}" | xargs -r kill &>/dev/null
++ wait "${1}" 2>/dev/null
++}
++
+ # $1: IP address
+ mptcp_lib_is_v6() {
+ [ -z "${1##*:*}" ]
--- /dev/null
+From aea73bae662a0e184393d6d7d0feb18d2577b9b9 Mon Sep 17 00:00:00 2001
+From: "Matthieu Baerts (NGI0)" <matttbe@kernel.org>
+Date: Mon, 10 Nov 2025 19:23:41 +0100
+Subject: selftests: mptcp: join: rm: set backup flag
+
+From: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+
+commit aea73bae662a0e184393d6d7d0feb18d2577b9b9 upstream.
+
+Some of these 'remove' tests rarely fail because a subflow has been
+reset instead of cleanly removed. This can happen when one extra subflow
+which has never carried data is being closed (FIN) on one side, while
+the other is sending data for the first time.
+
+To avoid such subflows to be used right at the end, the backup flag has
+been added. With that, data will be only carried on the initial subflow.
+
+Fixes: d2c4333a801c ("selftests: mptcp: add testcases for removing addrs")
+Cc: stable@vger.kernel.org
+Reviewed-by: Geliang Tang <geliang@kernel.org>
+Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+Link: https://patch.msgid.link/20251110-net-mptcp-sft-join-unstable-v1-2-a4332c714e10@kernel.org
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/net/mptcp/mptcp_join.sh | 54 ++++++++++++------------
+ 1 file changed, 27 insertions(+), 27 deletions(-)
+
+--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
++++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
+@@ -2321,7 +2321,7 @@ remove_tests()
+ if reset "remove single subflow"; then
+ pm_nl_set_limits $ns1 0 1
+ pm_nl_set_limits $ns2 0 1
+- pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
++ pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+ addr_nr_ns2=-1 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
+ chk_join_nr 1 1 1
+@@ -2334,8 +2334,8 @@ remove_tests()
+ if reset "remove multiple subflows"; then
+ pm_nl_set_limits $ns1 0 2
+ pm_nl_set_limits $ns2 0 2
+- pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+- pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
++ pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup
++ pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+ addr_nr_ns2=-2 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
+ chk_join_nr 2 2 2
+@@ -2346,7 +2346,7 @@ remove_tests()
+ # single address, remove
+ if reset "remove single address"; then
+ pm_nl_set_limits $ns1 0 1
+- pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
++ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+ pm_nl_set_limits $ns2 1 1
+ addr_nr_ns1=-1 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
+@@ -2359,9 +2359,9 @@ remove_tests()
+ # subflow and signal, remove
+ if reset "remove subflow and signal"; then
+ pm_nl_set_limits $ns1 0 2
+- pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
++ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+ pm_nl_set_limits $ns2 1 2
+- pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
++ pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+ addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
+ chk_join_nr 2 2 2
+@@ -2373,10 +2373,10 @@ remove_tests()
+ # subflows and signal, remove
+ if reset "remove subflows and signal"; then
+ pm_nl_set_limits $ns1 0 3
+- pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
++ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+ pm_nl_set_limits $ns2 1 3
+- pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+- pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
++ pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
++ pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
+ addr_nr_ns1=-1 addr_nr_ns2=-2 speed=10 \
+ run_tests $ns1 $ns2 10.0.1.1
+ chk_join_nr 3 3 3
+@@ -2388,9 +2388,9 @@ remove_tests()
+ # addresses remove
+ if reset "remove addresses"; then
+ pm_nl_set_limits $ns1 3 3
+- pm_nl_add_endpoint $ns1 10.0.2.1 flags signal id 250
+- pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+- pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
++ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup id 250
++ pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
++ pm_nl_add_endpoint $ns1 10.0.4.1 flags signal,backup
+ pm_nl_set_limits $ns2 3 3
+ addr_nr_ns1=-3 speed=10 \
+ run_tests $ns1 $ns2 10.0.1.1
+@@ -2403,10 +2403,10 @@ remove_tests()
+ # invalid addresses remove
+ if reset "remove invalid addresses"; then
+ pm_nl_set_limits $ns1 3 3
+- pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
++ pm_nl_add_endpoint $ns1 10.0.12.1 flags signal,backup
+ # broadcast IP: no packet for this address will be received on ns1
+- pm_nl_add_endpoint $ns1 224.0.0.1 flags signal
+- pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
++ pm_nl_add_endpoint $ns1 224.0.0.1 flags signal,backup
++ pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
+ pm_nl_set_limits $ns2 2 2
+ addr_nr_ns1=-3 speed=10 \
+ run_tests $ns1 $ns2 10.0.1.1
+@@ -2420,10 +2420,10 @@ remove_tests()
+ # subflows and signal, flush
+ if reset "flush subflows and signal"; then
+ pm_nl_set_limits $ns1 0 3
+- pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
++ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+ pm_nl_set_limits $ns2 1 3
+- pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+- pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
++ pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
++ pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
+ addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
+ chk_join_nr 3 3 3
+@@ -2436,9 +2436,9 @@ remove_tests()
+ if reset "flush subflows"; then
+ pm_nl_set_limits $ns1 3 3
+ pm_nl_set_limits $ns2 3 3
+- pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow id 150
+- pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+- pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
++ pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup id 150
++ pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
++ pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
+ addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
+ chk_join_nr 3 3 3
+@@ -2455,9 +2455,9 @@ remove_tests()
+ # addresses flush
+ if reset "flush addresses"; then
+ pm_nl_set_limits $ns1 3 3
+- pm_nl_add_endpoint $ns1 10.0.2.1 flags signal id 250
+- pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+- pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
++ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup id 250
++ pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
++ pm_nl_add_endpoint $ns1 10.0.4.1 flags signal,backup
+ pm_nl_set_limits $ns2 3 3
+ addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
+@@ -2470,9 +2470,9 @@ remove_tests()
+ # invalid addresses flush
+ if reset "flush invalid addresses"; then
+ pm_nl_set_limits $ns1 3 3
+- pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
+- pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+- pm_nl_add_endpoint $ns1 10.0.14.1 flags signal
++ pm_nl_add_endpoint $ns1 10.0.12.1 flags signal,backup
++ pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
++ pm_nl_add_endpoint $ns1 10.0.14.1 flags signal,backup
+ pm_nl_set_limits $ns2 3 3
+ addr_nr_ns1=-8 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
--- /dev/null
+From 290493078b96ce2ce3e60f55c23654acb678042a Mon Sep 17 00:00:00 2001
+From: "Matthieu Baerts (NGI0)" <matttbe@kernel.org>
+Date: Mon, 10 Nov 2025 19:23:43 +0100
+Subject: selftests: mptcp: join: userspace: longer transfer
+
+From: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+
+commit 290493078b96ce2ce3e60f55c23654acb678042a upstream.
+
+In rare cases, when the test environment is very slow, some userspace
+tests can fail because some expected events have not been seen.
+
+Because the tests are expecting a long on-going connection, and they are
+not waiting for the end of the transfer, it is fine to make the
+connection longer. This connection will be killed at the end, after the
+verifications, so making it longer doesn't change anything, apart from
+avoid it to end before the end of the verifications
+
+To play it safe, all userspace tests not waiting for the end of the
+transfer are now sharing a longer file (128KB) at slow speed.
+
+Fixes: 4369c198e599 ("selftests: mptcp: test userspace pm out of transfer")
+Cc: stable@vger.kernel.org
+Fixes: b2e2248f365a ("selftests: mptcp: userspace pm create id 0 subflow")
+Fixes: e3b47e460b4b ("selftests: mptcp: userspace pm remove initial subflow")
+Fixes: b9fb176081fb ("selftests: mptcp: userspace pm send RM_ADDR for ID 0")
+Reviewed-by: Geliang Tang <geliang@kernel.org>
+Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
+Link: https://patch.msgid.link/20251110-net-mptcp-sft-join-unstable-v1-4-a4332c714e10@kernel.org
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/net/mptcp/mptcp_join.sh | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
++++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
+@@ -3591,7 +3591,7 @@ userspace_tests()
+ continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+ set_userspace_pm $ns1
+ pm_nl_set_limits $ns2 2 2
+- { speed=5 \
++ { test_linkfail=128 speed=5 \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+ wait_mpj $ns1
+@@ -3624,7 +3624,7 @@ userspace_tests()
+ continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+ set_userspace_pm $ns2
+ pm_nl_set_limits $ns1 0 1
+- { speed=5 \
++ { test_linkfail=128 speed=5 \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+ wait_mpj $ns2
+@@ -3652,7 +3652,7 @@ userspace_tests()
+ continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+ set_userspace_pm $ns2
+ pm_nl_set_limits $ns1 0 1
+- { speed=5 \
++ { test_linkfail=128 speed=5 \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+ wait_mpj $ns2
+@@ -3673,7 +3673,7 @@ userspace_tests()
+ continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+ set_userspace_pm $ns2
+ pm_nl_set_limits $ns1 0 1
+- { speed=5 \
++ { test_linkfail=128 speed=5 \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+ wait_mpj $ns2
+@@ -3697,7 +3697,7 @@ userspace_tests()
+ continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+ set_userspace_pm $ns1
+ pm_nl_set_limits $ns2 1 1
+- { speed=5 \
++ { test_linkfail=128 speed=5 \
+ run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+ local tests_pid=$!
+ wait_mpj $ns1
--- /dev/null
+From dd4adb986a86727ed8f56c48b6d0695f1e211e65 Mon Sep 17 00:00:00 2001
+From: Steven Rostedt <rostedt@goodmis.org>
+Date: Tue, 28 Oct 2025 12:27:24 -0400
+Subject: selftests/tracing: Run sample events to clear page cache events
+
+From: Steven Rostedt <rostedt@goodmis.org>
+
+commit dd4adb986a86727ed8f56c48b6d0695f1e211e65 upstream.
+
+The tracing selftest "event-filter-function.tc" was failing because it
+first runs the "sample_events" function that triggers the kmem_cache_free
+event and it looks at what function was used during a call to "ls".
+
+But the first time it calls this, it could trigger events that are used to
+pull pages into the page cache.
+
+The rest of the test uses the function it finds during that call to see if
+it will be called in subsequent "sample_events" calls. But if there's no
+need to pull pages into the page cache, it will not trigger that function
+and the test will fail.
+
+Call the "sample_events" twice to trigger all the page cache work before
+it calls it to find a function to use in subsequent checks.
+
+Cc: stable@vger.kernel.org
+Fixes: eb50d0f250e96 ("selftests/ftrace: Choose target function for filter test from samples")
+Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
+Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
+Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
++++ b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
+@@ -20,6 +20,10 @@ sample_events() {
+ echo 0 > tracing_on
+ echo 0 > events/enable
+
++# Clear functions caused by page cache; run sample_events twice
++sample_events
++sample_events
++
+ echo "Get the most frequently calling function"
+ echo > trace
+ sample_events
--- /dev/null
+From 216158f063fe24fb003bd7da0cd92cd6e2c4d48b Mon Sep 17 00:00:00 2001
+From: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
+Date: Thu, 6 Nov 2025 15:25:32 +0530
+Subject: selftests/user_events: fix type cast for write_index packed member in perf_test
+
+From: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
+
+commit 216158f063fe24fb003bd7da0cd92cd6e2c4d48b upstream.
+
+Accessing 'reg.write_index' directly triggers a -Waddress-of-packed-member
+warning due to potential unaligned pointer access:
+
+perf_test.c:239:38: warning: taking address of packed member 'write_index'
+of class or structure 'user_reg' may result in an unaligned pointer value
+[-Waddress-of-packed-member]
+ 239 | ASSERT_NE(-1, write(self->data_fd, ®.write_index,
+ | ^~~~~~~~~~~~~~~
+
+Since write(2) works with any alignment. Casting '®.write_index'
+explicitly to 'void *' to suppress this warning.
+
+Link: https://lkml.kernel.org/r/20251106095532.15185-1-ankitkhushwaha.linux@gmail.com
+Fixes: 42187bdc3ca4 ("selftests/user_events: Add perf self-test for empty arguments events")
+Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
+Cc: Beau Belgrave <beaub@linux.microsoft.com>
+Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
+Cc: Steven Rostedt <rostedt@goodmis.org>
+Cc: sunliming <sunliming@kylinos.cn>
+Cc: Wei Yang <richard.weiyang@gmail.com>
+Cc: Shuah Khan <shuah@kernel.org>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/user_events/perf_test.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/tools/testing/selftests/user_events/perf_test.c
++++ b/tools/testing/selftests/user_events/perf_test.c
+@@ -236,7 +236,7 @@ TEST_F(user, perf_empty_events) {
+ ASSERT_EQ(1 << reg.enable_bit, self->check);
+
+ /* Ensure write shows up at correct offset */
+- ASSERT_NE(-1, write(self->data_fd, ®.write_index,
++ ASSERT_NE(-1, write(self->data_fd, (void *)®.write_index,
+ sizeof(reg.write_index)));
+ val = (void *)(((char *)perf_page) + perf_page->data_offset);
+ ASSERT_EQ(PERF_RECORD_SAMPLE, *val);
dma-mapping-benchmark-restore-padding-to-ensure-uabi-remained-consistent.patch
loongarch-use-correct-accessor-to-read-fwpc-mwpc.patch
loongarch-let-pte-pmd-_modify-record-the-status-of-_page_dirty.patch
+ipv4-route-prevent-rt_bind_exception-from-rebinding-stale-fnhe.patch
+nilfs2-avoid-having-an-active-sc_timer-before-freeing-sci.patch
+selftests-tracing-run-sample-events-to-clear-page-cache-events.patch
+wifi-mac80211-reject-address-change-while-connecting.patch
+fs-proc-fix-uaf-in-proc_readdir_de.patch
+mm-mm_init-fix-hash-table-order-logging-in-alloc_large_system_hash.patch
+mm-shmem-fix-thp-allocation-and-fallback-loop.patch
+mmc-sdhci-of-dwcmshc-change-dll_strbin_tapnum_default-to-0x4.patch
+mmc-dw_mmc-rockchip-fix-wrong-internal-phase-calculate.patch
+alsa-usb-audio-fix-potential-overflow-of-pcm-transfer-buffer.patch
+cifs-client-fix-memory-leak-in-smb3_fs_context_parse_param.patch
+codetag-debug-handle-existing-codetag_empty-in-mark_objexts_empty-for-slabobj_ext.patch
+crash-fix-crashkernel-resource-shrink.patch
+crypto-hisilicon-qm-fix-device-reference-leak-in-qm_get_qos_value.patch
+smb-client-fix-cifs_pick_channel-when-channel-needs-reconnect.patch
+spi-try-to-get-acpi-gpio-irq-earlier.patch
+x86-microcode-amd-add-zen5-model-0x44-stepping-0x1-minrev.patch
+selftests-user_events-fix-type-cast-for-write_index-packed-member-in-perf_test.patch
+ftrace-fix-bpf-fexit-with-livepatch.patch
+loongarch-use-physical-addresses-for-csr_merrentry-csr_tlbrentry.patch
+edac-altera-handle-ocram-ecc-enable-after-warm-reset.patch
+edac-altera-use-inttest-register-for-ethernet-and-usb-sbe-injection.patch
+pm-hibernate-emit-an-error-when-image-writing-fails.patch
+pm-hibernate-use-atomic64_t-for-compressed_size-variable.patch
+btrfs-zoned-fix-conventional-zone-capacity-calculation.patch
+btrfs-scrub-put-bio-after-errors-in-scrub_raid56_parity_stripe.patch
+btrfs-do-not-update-last_log_commit-when-logging-inode-due-to-a-new-name.patch
+btrfs-release-root-after-error-in-data_reloc_print_warning_inode.patch
+drm-amdkfd-relax-checks-for-over-allocation-of-save-area.patch
+drm-amdgpu-disable-peer-to-peer-access-for-dcc-enabled-gc12-vram-surfaces.patch
+pmdomain-arm-scmi-fix-genpd-leak-on-provider-registration-failure.patch
+pmdomain-imx-fix-reference-count-leak-in-imx_gpc_remove.patch
+pmdomain-samsung-plug-potential-memleak-during-probe.patch
+selftests-mptcp-connect-fix-fallback-note-due-to-ooo.patch
+selftests-mptcp-join-rm-set-backup-flag.patch
+selftests-mptcp-join-endpoints-longer-transfer.patch
+selftests-mptcp-connect-trunc-read-all-recv-data.patch
+selftests-mptcp-join-userspace-longer-transfer.patch
+selftests-mptcp-join-properly-kill-background-tasks.patch
--- /dev/null
+From 79280191c2fd7f24899bbd640003b5389d3c109c Mon Sep 17 00:00:00 2001
+From: Henrique Carvalho <henrique.carvalho@suse.com>
+Date: Fri, 7 Nov 2025 18:59:53 -0300
+Subject: smb: client: fix cifs_pick_channel when channel needs reconnect
+
+From: Henrique Carvalho <henrique.carvalho@suse.com>
+
+commit 79280191c2fd7f24899bbd640003b5389d3c109c upstream.
+
+cifs_pick_channel iterates candidate channels using cur. The
+reconnect-state test mistakenly used a different variable.
+
+This checked the wrong slot and would cause us to skip a healthy channel
+and to dispatch on one that needs reconnect, occasionally failing
+operations when a channel was down.
+
+Fix by replacing for the correct variable.
+
+Fixes: fc43a8ac396d ("cifs: cifs_pick_channel should try selecting active channels")
+Cc: stable@vger.kernel.org
+Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
+Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
+Signed-off-by: Steve French <stfrench@microsoft.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/smb/client/transport.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/fs/smb/client/transport.c
++++ b/fs/smb/client/transport.c
+@@ -1050,7 +1050,7 @@ struct TCP_Server_Info *cifs_pick_channe
+ if (!server || server->terminate)
+ continue;
+
+- if (CIFS_CHAN_NEEDS_RECONNECT(ses, i))
++ if (CIFS_CHAN_NEEDS_RECONNECT(ses, cur))
+ continue;
+
+ /*
--- /dev/null
+From 3cd2018e15b3d66d2187d92867e265f45ad79e6f Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hansg@kernel.org>
+Date: Sun, 2 Nov 2025 20:09:21 +0100
+Subject: spi: Try to get ACPI GPIO IRQ earlier
+
+From: Hans de Goede <hansg@kernel.org>
+
+commit 3cd2018e15b3d66d2187d92867e265f45ad79e6f upstream.
+
+Since commit d24cfee7f63d ("spi: Fix acpi deferred irq probe"), the
+acpi_dev_gpio_irq_get() call gets delayed till spi_probe() is called
+on the SPI device.
+
+If there is no driver for the SPI device then the move to spi_probe()
+results in acpi_dev_gpio_irq_get() never getting called. This may
+cause problems by leaving the GPIO pin floating because this call is
+responsible for setting up the GPIO pin direction and/or bias according
+to the values from the ACPI tables.
+
+Re-add the removed acpi_dev_gpio_irq_get() in acpi_register_spi_device()
+to ensure the GPIO pin is always correctly setup, while keeping the
+acpi_dev_gpio_irq_get() call added to spi_probe() to deal with
+-EPROBE_DEFER returns caused by the GPIO controller not having a driver
+yet.
+
+Link: https://bbs.archlinux.org/viewtopic.php?id=302348
+Fixes: d24cfee7f63d ("spi: Fix acpi deferred irq probe")
+Cc: stable@vger.kernel.org
+Signed-off-by: Hans de Goede <hansg@kernel.org>
+Link: https://patch.msgid.link/20251102190921.30068-1-hansg@kernel.org
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/spi/spi.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/spi/spi.c
++++ b/drivers/spi/spi.c
+@@ -2879,6 +2879,16 @@ static acpi_status acpi_register_spi_dev
+ acpi_set_modalias(adev, acpi_device_hid(adev), spi->modalias,
+ sizeof(spi->modalias));
+
++ /*
++ * This gets re-tried in spi_probe() for -EPROBE_DEFER handling in case
++ * the GPIO controller does not have a driver yet. This needs to be done
++ * here too, because this call sets the GPIO direction and/or bias.
++ * Setting these needs to be done even if there is no driver, in which
++ * case spi_probe() will never get called.
++ */
++ if (spi->irq < 0)
++ spi->irq = acpi_dev_gpio_irq_get(adev, 0);
++
+ acpi_device_set_enumerated(adev);
+
+ adev->power.flags.ignore_parent = true;
--- /dev/null
+From a9da90e618cd0669a22bcc06a96209db5dd96e9b Mon Sep 17 00:00:00 2001
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Wed, 5 Nov 2025 15:41:19 +0100
+Subject: wifi: mac80211: reject address change while connecting
+
+From: Johannes Berg <johannes.berg@intel.com>
+
+commit a9da90e618cd0669a22bcc06a96209db5dd96e9b upstream.
+
+While connecting, the MAC address can already no longer be
+changed. The change is already rejected if netif_carrier_ok(),
+but of course that's not true yet while connecting. Check for
+auth_data or assoc_data, so the MAC address cannot be changed.
+
+Also more comprehensively check that there are no stations on
+the interface being changed - if any peer station is added it
+will know about our address already, so we cannot change it.
+
+Cc: stable@vger.kernel.org
+Fixes: 3c06e91b40db ("wifi: mac80211: Support POWERED_ADDR_CHANGE feature")
+Link: https://patch.msgid.link/20251105154119.f9f6c1df81bb.I9bb3760ede650fb96588be0d09a5a7bdec21b217@changeid
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/mac80211/iface.c | 14 +++++++++++---
+ 1 file changed, 11 insertions(+), 3 deletions(-)
+
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -224,6 +224,10 @@ static int ieee80211_can_powered_addr_ch
+ if (netif_carrier_ok(sdata->dev))
+ return -EBUSY;
+
++ /* if any stations are set known (so they know this vif too), reject */
++ if (sta_info_get_by_idx(sdata, 0))
++ return -EBUSY;
++
+ /* First check no ROC work is happening on this iface */
+ list_for_each_entry(roc, &local->roc_list, list) {
+ if (roc->sdata != sdata)
+@@ -243,12 +247,16 @@ static int ieee80211_can_powered_addr_ch
+ ret = -EBUSY;
+ }
+
++ /*
++ * More interface types could be added here but changing the
++ * address while powered makes the most sense in client modes.
++ */
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_P2P_CLIENT:
+- /* More interface types could be added here but changing the
+- * address while powered makes the most sense in client modes.
+- */
++ /* refuse while connecting */
++ if (sdata->u.mgd.auth_data || sdata->u.mgd.assoc_data)
++ return -EBUSY;
+ break;
+ default:
+ ret = -EOPNOTSUPP;
--- /dev/null
+From dd14022a7ce96963aa923e35cf4bcc8c32f95840 Mon Sep 17 00:00:00 2001
+From: "Borislav Petkov (AMD)" <bp@alien8.de>
+Date: Fri, 14 Nov 2025 14:01:14 +0100
+Subject: x86/microcode/AMD: Add Zen5 model 0x44, stepping 0x1 minrev
+
+From: Borislav Petkov (AMD) <bp@alien8.de>
+
+commit dd14022a7ce96963aa923e35cf4bcc8c32f95840 upstream.
+
+Add the minimum Entrysign revision for that model+stepping to the list
+of minimum revisions.
+
+Fixes: 50cef76d5cb0 ("x86/microcode/AMD: Load only SHA256-checksummed patches")
+Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
+Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
+Cc: <stable@kernel.org>
+Link: https://lore.kernel.org/r/e94dd76b-4911-482f-8500-5c848a3df026@citrix.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/x86/kernel/cpu/microcode/amd.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/x86/kernel/cpu/microcode/amd.c
++++ b/arch/x86/kernel/cpu/microcode/amd.c
+@@ -212,6 +212,7 @@ static bool need_sha_check(u32 cur_rev)
+ case 0xb1010: return cur_rev <= 0xb101046; break;
+ case 0xb2040: return cur_rev <= 0xb204031; break;
+ case 0xb4040: return cur_rev <= 0xb404031; break;
++ case 0xb4041: return cur_rev <= 0xb404101; break;
+ case 0xb6000: return cur_rev <= 0xb600031; break;
+ case 0xb6080: return cur_rev <= 0xb608031; break;
+ case 0xb7000: return cur_rev <= 0xb700031; break;
projects / thirdparty / kernel / stable-queue.git / commitdiff
