From: Sasha Levin Date: Mon, 11 Aug 2025 04:39:21 +0000 (-0400) Subject: Fixes for 5.10 X-Git-Tag: v6.1.148~64 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0bc272dd16022e92c1ae19e1c9574a36b9a27da8;p=thirdparty%2Fkernel%2Fstable-queue.git Fixes for 5.10 Signed-off-by: Sasha Levin --- diff --git a/queue-5.10/alsa-hda-ca0132-fix-missing-error-handling-in-ca0132.patch b/queue-5.10/alsa-hda-ca0132-fix-missing-error-handling-in-ca0132.patch new file mode 100644 index 0000000000..f8cc273db5 --- /dev/null +++ b/queue-5.10/alsa-hda-ca0132-fix-missing-error-handling-in-ca0132.patch @@ -0,0 +1,47 @@ +From 92d19e49060c955b1ffe8aafed2cca78776ef676 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Wed, 6 Aug 2025 11:44:22 +0200 +Subject: ALSA: hda/ca0132: Fix missing error handling in + ca0132_alt_select_out() + +From: Takashi Iwai + +[ Upstream commit 9f320dfb0ffc555aa2eac8331dee0c2c16f67633 ] + +There are a couple of cases where the error is ignored or the error +code isn't propagated in ca0132_alt_select_out(). Fix those. + +Fixes: def3f0a5c700 ("ALSA: hda/ca0132 - Add quirk output selection structures.") +Link: https://patch.msgid.link/20250806094423.8843-1-tiwai@suse.de +Signed-off-by: Takashi Iwai +Signed-off-by: Sasha Levin +--- + sound/pci/hda/patch_ca0132.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c +index 6d67cca4cfa6..b9d88b156f40 100644 +--- a/sound/pci/hda/patch_ca0132.c ++++ b/sound/pci/hda/patch_ca0132.c +@@ -4671,7 +4671,8 @@ static int ca0132_alt_select_out(struct hda_codec *codec) + if (err < 0) + goto exit; + +- if (ca0132_alt_select_out_quirk_set(codec) < 0) ++ err = ca0132_alt_select_out_quirk_set(codec); ++ if (err < 0) + goto exit; + + switch (spec->cur_out_type) { +@@ -4761,6 +4762,8 @@ static int ca0132_alt_select_out(struct hda_codec *codec) + spec->bass_redirection_val); + else + err = ca0132_alt_surround_set_bass_redirection(codec, 0); ++ if (err < 0) ++ goto exit; + + /* Unmute DSP now that we're done with output selection. */ + err = dspio_set_uint_param(codec, 0x96, +-- +2.39.5 + diff --git a/queue-5.10/benet-fix-bug-when-creating-vfs.patch b/queue-5.10/benet-fix-bug-when-creating-vfs.patch new file mode 100644 index 0000000000..f89bcc7459 --- /dev/null +++ b/queue-5.10/benet-fix-bug-when-creating-vfs.patch @@ -0,0 +1,61 @@ +From cd8aa919f960d597412087584dfec129aafc93c6 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Fri, 1 Aug 2025 12:13:37 +0200 +Subject: benet: fix BUG when creating VFs + +From: Michal Schmidt + +[ Upstream commit 5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63 ] + +benet crashes as soon as SRIOV VFs are created: + + kernel BUG at mm/vmalloc.c:3457! + Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI + CPU: 4 UID: 0 PID: 7408 Comm: test.sh Kdump: loaded Not tainted 6.16.0+ #1 PREEMPT(voluntary) + [...] + RIP: 0010:vunmap+0x5f/0x70 + [...] + Call Trace: + + __iommu_dma_free+0xe8/0x1c0 + be_cmd_set_mac_list+0x3fe/0x640 [be2net] + be_cmd_set_mac+0xaf/0x110 [be2net] + be_vf_eth_addr_config+0x19f/0x330 [be2net] + be_vf_setup+0x4f7/0x990 [be2net] + be_pci_sriov_configure+0x3a1/0x470 [be2net] + sriov_numvfs_store+0x20b/0x380 + kernfs_fop_write_iter+0x354/0x530 + vfs_write+0x9b9/0xf60 + ksys_write+0xf3/0x1d0 + do_syscall_64+0x8c/0x3d0 + +be_cmd_set_mac_list() calls dma_free_coherent() under a spin_lock_bh. +Fix it by freeing only after the lock has been released. + +Fixes: 1a82d19ca2d6 ("be2net: fix sleeping while atomic bugs in be_ndo_bridge_getlink") +Signed-off-by: Michal Schmidt +Reviewed-by: Nikolay Aleksandrov +Link: https://patch.msgid.link/20250801101338.72502-1-mschmidt@redhat.com +Signed-off-by: Jakub Kicinski +Signed-off-by: Sasha Levin +--- + drivers/net/ethernet/emulex/benet/be_cmds.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c +index d9bceb26f4e5..d6984c179bae 100644 +--- a/drivers/net/ethernet/emulex/benet/be_cmds.c ++++ b/drivers/net/ethernet/emulex/benet/be_cmds.c +@@ -3851,8 +3851,8 @@ int be_cmd_set_mac_list(struct be_adapter *adapter, u8 *mac_array, + status = be_mcc_notify_wait(adapter); + + err: +- dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); + spin_unlock_bh(&adapter->mcc_lock); ++ dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); + return status; + } + +-- +2.39.5 + diff --git a/queue-5.10/ipv6-reject-malicious-packets-in-ipv6_gso_segment.patch b/queue-5.10/ipv6-reject-malicious-packets-in-ipv6_gso_segment.patch new file mode 100644 index 0000000000..4e18f8b868 --- /dev/null +++ b/queue-5.10/ipv6-reject-malicious-packets-in-ipv6_gso_segment.patch @@ -0,0 +1,103 @@ +From d785ca2fee8c97ab8f1dded5dea40cbd050ecd9e Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Wed, 30 Jul 2025 13:17:38 +0000 +Subject: ipv6: reject malicious packets in ipv6_gso_segment() + +From: Eric Dumazet + +[ Upstream commit d45cf1e7d7180256e17c9ce88e32e8061a7887fe ] + +syzbot was able to craft a packet with very long IPv6 extension headers +leading to an overflow of skb->transport_header. + +This 16bit field has a limited range. + +Add skb_reset_transport_header_careful() helper and use it +from ipv6_gso_segment() + +WARNING: CPU: 0 PID: 5871 at ./include/linux/skbuff.h:3032 skb_reset_transport_header include/linux/skbuff.h:3032 [inline] +WARNING: CPU: 0 PID: 5871 at ./include/linux/skbuff.h:3032 ipv6_gso_segment+0x15e2/0x21e0 net/ipv6/ip6_offload.c:151 +Modules linked in: +CPU: 0 UID: 0 PID: 5871 Comm: syz-executor211 Not tainted 6.16.0-rc6-syzkaller-g7abc678e3084 #0 PREEMPT(full) +Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 + RIP: 0010:skb_reset_transport_header include/linux/skbuff.h:3032 [inline] + RIP: 0010:ipv6_gso_segment+0x15e2/0x21e0 net/ipv6/ip6_offload.c:151 +Call Trace: + + skb_mac_gso_segment+0x31c/0x640 net/core/gso.c:53 + nsh_gso_segment+0x54a/0xe10 net/nsh/nsh.c:110 + skb_mac_gso_segment+0x31c/0x640 net/core/gso.c:53 + __skb_gso_segment+0x342/0x510 net/core/gso.c:124 + skb_gso_segment include/net/gso.h:83 [inline] + validate_xmit_skb+0x857/0x11b0 net/core/dev.c:3950 + validate_xmit_skb_list+0x84/0x120 net/core/dev.c:4000 + sch_direct_xmit+0xd3/0x4b0 net/sched/sch_generic.c:329 + __dev_xmit_skb net/core/dev.c:4102 [inline] + __dev_queue_xmit+0x17b6/0x3a70 net/core/dev.c:4679 + +Fixes: d1da932ed4ec ("ipv6: Separate ipv6 offload support") +Reported-by: syzbot+af43e647fd835acc02df@syzkaller.appspotmail.com +Closes: https://lore.kernel.org/netdev/688a1a05.050a0220.5d226.0008.GAE@google.com/T/#u +Signed-off-by: Eric Dumazet +Reviewed-by: Dawid Osuchowski +Reviewed-by: Willem de Bruijn +Link: https://patch.msgid.link/20250730131738.3385939-1-edumazet@google.com +Signed-off-by: Jakub Kicinski +Signed-off-by: Sasha Levin +--- + include/linux/skbuff.h | 23 +++++++++++++++++++++++ + net/ipv6/ip6_offload.c | 4 +++- + 2 files changed, 26 insertions(+), 1 deletion(-) + +diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h +index 3248e4aeec03..ca7f2a2c3e3f 100644 +--- a/include/linux/skbuff.h ++++ b/include/linux/skbuff.h +@@ -2519,6 +2519,29 @@ static inline void skb_reset_transport_header(struct sk_buff *skb) + skb->transport_header = skb->data - skb->head; + } + ++/** ++ * skb_reset_transport_header_careful - conditionally reset transport header ++ * @skb: buffer to alter ++ * ++ * Hardened version of skb_reset_transport_header(). ++ * ++ * Returns: true if the operation was a success. ++ */ ++static inline bool __must_check ++skb_reset_transport_header_careful(struct sk_buff *skb) ++{ ++ long offset = skb->data - skb->head; ++ ++ if (unlikely(offset != (typeof(skb->transport_header))offset)) ++ return false; ++ ++ if (unlikely(offset == (typeof(skb->transport_header))~0U)) ++ return false; ++ ++ skb->transport_header = offset; ++ return true; ++} ++ + static inline void skb_set_transport_header(struct sk_buff *skb, + const int offset) + { +diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c +index 673f02ea62aa..c145be2fd6e4 100644 +--- a/net/ipv6/ip6_offload.c ++++ b/net/ipv6/ip6_offload.c +@@ -111,7 +111,9 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, + + ops = rcu_dereference(inet6_offloads[proto]); + if (likely(ops && ops->callbacks.gso_segment)) { +- skb_reset_transport_header(skb); ++ if (!skb_reset_transport_header_careful(skb)) ++ goto out; ++ + segs = ops->callbacks.gso_segment(skb, features); + if (!segs) + skb->network_header = skb_mac_header(skb) + nhoff - skb->head; +-- +2.39.5 + diff --git a/queue-5.10/mm-extract-might_alloc-debug-check.patch b/queue-5.10/mm-extract-might_alloc-debug-check.patch new file mode 100644 index 0000000000..36d63e0db4 --- /dev/null +++ b/queue-5.10/mm-extract-might_alloc-debug-check.patch @@ -0,0 +1,145 @@ +From b8911281779ab6c8ce0d126fc04a49b8f7fd1b15 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Mon, 14 Dec 2020 19:08:34 -0800 +Subject: mm: extract might_alloc() debug check +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +From: Daniel Vetter + +[ Upstream commit 95d6c701f4ca7c44dc148d664f604541266a2333 ] + +Extracted from slab.h, which seems to have the most complete version +including the correct might_sleep() check. Roll it out to slob.c. + +Motivated by a discussion with Paul about possibly changing call_rcu +behaviour to allocate memory, but only roughly every 500th call. + +There are a lot fewer places in the kernel that care about whether +allocating memory is allowed or not (due to deadlocks with reclaim code) +than places that care whether sleeping is allowed. But debugging these +also tends to be a lot harder, so nice descriptive checks could come in +handy. I might have some use eventually for annotations in drivers/gpu. + +Note that unlike fs_reclaim_acquire/release gfpflags_allow_blocking does +not consult the PF_MEMALLOC flags. But there is no flag equivalent for +GFP_NOWAIT, hence this check can't go wrong due to +memalloc_no*_save/restore contexts. Willy is working on a patch series +which might change this: + +https://lore.kernel.org/linux-mm/20200625113122.7540-7-willy@infradead.org/ + +I think best would be if that updates gfpflags_allow_blocking(), since +there's a ton of callers all over the place for that already. + +Link: https://lkml.kernel.org/r/20201125162532.1299794-3-daniel.vetter@ffwll.ch +Signed-off-by: Daniel Vetter +Acked-by: Vlastimil Babka +Acked-by: Paul E. McKenney +Reviewed-by: Jason Gunthorpe +Cc: Randy Dunlap +Cc: Paul E. McKenney +Cc: Christoph Lameter +Cc: Pekka Enberg +Cc: David Rientjes +Cc: Joonsoo Kim +Cc: Peter Zijlstra +Cc: Ingo Molnar +Cc: Vlastimil Babka +Cc: Mathieu Desnoyers +Cc: Sebastian Andrzej Siewior +Cc: Michel Lespinasse +Cc: Daniel Vetter +Cc: Waiman Long +Cc: Thomas Gleixner +Cc: Randy Dunlap +Cc: Dave Chinner +Cc: Qian Cai +Cc: "Matthew Wilcox (Oracle)" +Cc: Christian König +Cc: Ingo Molnar +Cc: Jason Gunthorpe +Cc: Maarten Lankhorst +Cc: Thomas Hellström (Intel) +Cc: Will Deacon +Signed-off-by: Andrew Morton +Signed-off-by: Linus Torvalds +Stable-dep-of: 99765233ab42 ("NFS: Fixup allocation flags for nfsiod's __GFP_NORETRY") +Signed-off-by: Sasha Levin +--- + include/linux/sched/mm.h | 16 ++++++++++++++++ + mm/slab.h | 5 +---- + mm/slob.c | 6 ++---- + 3 files changed, 19 insertions(+), 8 deletions(-) + +diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h +index e3e5e149b00e..a856c4478d8c 100644 +--- a/include/linux/sched/mm.h ++++ b/include/linux/sched/mm.h +@@ -189,6 +189,22 @@ static inline void fs_reclaim_acquire(gfp_t gfp_mask) { } + static inline void fs_reclaim_release(gfp_t gfp_mask) { } + #endif + ++/** ++ * might_alloc - Mark possible allocation sites ++ * @gfp_mask: gfp_t flags that would be used to allocate ++ * ++ * Similar to might_sleep() and other annotations, this can be used in functions ++ * that might allocate, but often don't. Compiles to nothing without ++ * CONFIG_LOCKDEP. Includes a conditional might_sleep() if @gfp allows blocking. ++ */ ++static inline void might_alloc(gfp_t gfp_mask) ++{ ++ fs_reclaim_acquire(gfp_mask); ++ fs_reclaim_release(gfp_mask); ++ ++ might_sleep_if(gfpflags_allow_blocking(gfp_mask)); ++} ++ + /** + * memalloc_noio_save - Marks implicit GFP_NOIO allocation scope. + * +diff --git a/mm/slab.h b/mm/slab.h +index 6952e10cf33b..4b70cf4493e6 100644 +--- a/mm/slab.h ++++ b/mm/slab.h +@@ -507,10 +507,7 @@ static inline struct kmem_cache *slab_pre_alloc_hook(struct kmem_cache *s, + { + flags &= gfp_allowed_mask; + +- fs_reclaim_acquire(flags); +- fs_reclaim_release(flags); +- +- might_sleep_if(gfpflags_allow_blocking(flags)); ++ might_alloc(flags); + + if (should_failslab(s, flags)) + return NULL; +diff --git a/mm/slob.c b/mm/slob.c +index 7cc9805c8091..8d4bfa46247f 100644 +--- a/mm/slob.c ++++ b/mm/slob.c +@@ -474,8 +474,7 @@ __do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller) + + gfp &= gfp_allowed_mask; + +- fs_reclaim_acquire(gfp); +- fs_reclaim_release(gfp); ++ might_alloc(gfp); + + if (size < PAGE_SIZE - minalign) { + int align = minalign; +@@ -597,8 +596,7 @@ static void *slob_alloc_node(struct kmem_cache *c, gfp_t flags, int node) + + flags &= gfp_allowed_mask; + +- fs_reclaim_acquire(flags); +- fs_reclaim_release(flags); ++ might_alloc(flags); + + if (c->size < PAGE_SIZE) { + b = slob_alloc(c->size, flags, c->align, node, 0); +-- +2.39.5 + diff --git a/queue-5.10/net-drop-ufo-packets-in-udp_rcv_segment.patch b/queue-5.10/net-drop-ufo-packets-in-udp_rcv_segment.patch new file mode 100644 index 0000000000..45ac3a109d --- /dev/null +++ b/queue-5.10/net-drop-ufo-packets-in-udp_rcv_segment.patch @@ -0,0 +1,122 @@ +From f965279d8fa1cccb9b8f4a13f43551450ad6c1f7 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Wed, 30 Jul 2025 18:14:58 +0800 +Subject: net: drop UFO packets in udp_rcv_segment() + +From: Wang Liang + +[ Upstream commit d46e51f1c78b9ab9323610feb14238d06d46d519 ] + +When sending a packet with virtio_net_hdr to tun device, if the gso_type +in virtio_net_hdr is SKB_GSO_UDP and the gso_size is less than udphdr +size, below crash may happen. + + ------------[ cut here ]------------ + kernel BUG at net/core/skbuff.c:4572! + Oops: invalid opcode: 0000 [#1] SMP NOPTI + CPU: 0 UID: 0 PID: 62 Comm: mytest Not tainted 6.16.0-rc7 #203 PREEMPT(voluntary) + Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 + RIP: 0010:skb_pull_rcsum+0x8e/0xa0 + Code: 00 00 5b c3 cc cc cc cc 8b 93 88 00 00 00 f7 da e8 37 44 38 00 f7 d8 89 83 88 00 00 00 48 8b 83 c8 00 00 00 5b c3 cc cc cc cc <0f> 0b 0f 0b 66 66 2e 0f 1f 84 00 000 + RSP: 0018:ffffc900001fba38 EFLAGS: 00000297 + RAX: 0000000000000004 RBX: ffff8880040c1000 RCX: ffffc900001fb948 + RDX: ffff888003e6d700 RSI: 0000000000000008 RDI: ffff88800411a062 + RBP: ffff8880040c1000 R08: 0000000000000000 R09: 0000000000000001 + R10: ffff888003606c00 R11: 0000000000000001 R12: 0000000000000000 + R13: ffff888004060900 R14: ffff888004050000 R15: ffff888004060900 + FS: 000000002406d3c0(0000) GS:ffff888084a19000(0000) knlGS:0000000000000000 + CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 + CR2: 0000000020000040 CR3: 0000000004007000 CR4: 00000000000006f0 + Call Trace: + + udp_queue_rcv_one_skb+0x176/0x4b0 net/ipv4/udp.c:2445 + udp_queue_rcv_skb+0x155/0x1f0 net/ipv4/udp.c:2475 + udp_unicast_rcv_skb+0x71/0x90 net/ipv4/udp.c:2626 + __udp4_lib_rcv+0x433/0xb00 net/ipv4/udp.c:2690 + ip_protocol_deliver_rcu+0xa6/0x160 net/ipv4/ip_input.c:205 + ip_local_deliver_finish+0x72/0x90 net/ipv4/ip_input.c:233 + ip_sublist_rcv_finish+0x5f/0x70 net/ipv4/ip_input.c:579 + ip_sublist_rcv+0x122/0x1b0 net/ipv4/ip_input.c:636 + ip_list_rcv+0xf7/0x130 net/ipv4/ip_input.c:670 + __netif_receive_skb_list_core+0x21d/0x240 net/core/dev.c:6067 + netif_receive_skb_list_internal+0x186/0x2b0 net/core/dev.c:6210 + napi_complete_done+0x78/0x180 net/core/dev.c:6580 + tun_get_user+0xa63/0x1120 drivers/net/tun.c:1909 + tun_chr_write_iter+0x65/0xb0 drivers/net/tun.c:1984 + vfs_write+0x300/0x420 fs/read_write.c:593 + ksys_write+0x60/0xd0 fs/read_write.c:686 + do_syscall_64+0x50/0x1c0 arch/x86/entry/syscall_64.c:63 + + +To trigger gso segment in udp_queue_rcv_skb(), we should also set option +UDP_ENCAP_ESPINUDP to enable udp_sk(sk)->encap_rcv. When the encap_rcv +hook return 1 in udp_queue_rcv_one_skb(), udp_csum_pull_header() will try +to pull udphdr, but the skb size has been segmented to gso size, which +leads to this crash. + +Previous commit cf329aa42b66 ("udp: cope with UDP GRO packet misdirection") +introduces segmentation in UDP receive path only for GRO, which was never +intended to be used for UFO, so drop UFO packets in udp_rcv_segment(). + +Link: https://lore.kernel.org/netdev/20250724083005.3918375-1-wangliang74@huawei.com/ +Link: https://lore.kernel.org/netdev/20250729123907.3318425-1-wangliang74@huawei.com/ +Fixes: cf329aa42b66 ("udp: cope with UDP GRO packet misdirection") +Suggested-by: Willem de Bruijn +Signed-off-by: Wang Liang +Reviewed-by: Willem de Bruijn +Link: https://patch.msgid.link/20250730101458.3470788-1-wangliang74@huawei.com +Signed-off-by: Jakub Kicinski +Signed-off-by: Sasha Levin +--- + include/net/udp.h | 24 ++++++++++++++++++------ + 1 file changed, 18 insertions(+), 6 deletions(-) + +diff --git a/include/net/udp.h b/include/net/udp.h +index db599b15b630..5e5e8c7c6777 100644 +--- a/include/net/udp.h ++++ b/include/net/udp.h +@@ -479,6 +479,16 @@ static inline struct sk_buff *udp_rcv_segment(struct sock *sk, + { + netdev_features_t features = NETIF_F_SG; + struct sk_buff *segs; ++ int drop_count; ++ ++ /* ++ * Segmentation in UDP receive path is only for UDP GRO, drop udp ++ * fragmentation offload (UFO) packets. ++ */ ++ if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP) { ++ drop_count = 1; ++ goto drop; ++ } + + /* Avoid csum recalculation by skb_segment unless userspace explicitly + * asks for the final checksum values +@@ -502,16 +512,18 @@ static inline struct sk_buff *udp_rcv_segment(struct sock *sk, + */ + segs = __skb_gso_segment(skb, features, false); + if (IS_ERR_OR_NULL(segs)) { +- int segs_nr = skb_shinfo(skb)->gso_segs; +- +- atomic_add(segs_nr, &sk->sk_drops); +- SNMP_ADD_STATS(__UDPX_MIB(sk, ipv4), UDP_MIB_INERRORS, segs_nr); +- kfree_skb(skb); +- return NULL; ++ drop_count = skb_shinfo(skb)->gso_segs; ++ goto drop; + } + + consume_skb(skb); + return segs; ++ ++drop: ++ atomic_add(drop_count, &sk->sk_drops); ++ SNMP_ADD_STATS(__UDPX_MIB(sk, ipv4), UDP_MIB_INERRORS, drop_count); ++ kfree_skb(skb); ++ return NULL; + } + + #ifdef CONFIG_BPF_SYSCALL +-- +2.39.5 + diff --git a/queue-5.10/netpoll-prevent-hanging-napi-when-netcons-gets-enabl.patch b/queue-5.10/netpoll-prevent-hanging-napi-when-netcons-gets-enabl.patch new file mode 100644 index 0000000000..aad25b731c --- /dev/null +++ b/queue-5.10/netpoll-prevent-hanging-napi-when-netcons-gets-enabl.patch @@ -0,0 +1,95 @@ +From d79a1c13d88ec841ea5045c640d0ac5c63999dbe Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Fri, 25 Jul 2025 18:08:46 -0700 +Subject: netpoll: prevent hanging NAPI when netcons gets enabled + +From: Jakub Kicinski + +[ Upstream commit 2da4def0f487f24bbb0cece3bb2bcdcb918a0b72 ] + +Paolo spotted hangs in NIPA running driver tests against virtio. +The tests hang in virtnet_close() -> virtnet_napi_tx_disable(). + +The problem is only reproducible if running multiple of our tests +in sequence (I used TEST_PROGS="xdp.py ping.py netcons_basic.sh \ +netpoll_basic.py stats.py"). Initial suspicion was that this is +a simple case of double-disable of NAPI, but instrumenting the +code reveals: + + Deadlocked on NAPI ffff888007cd82c0 (virtnet_poll_tx): + state: 0x37, disabled: false, owner: 0, listed: false, weight: 64 + +The NAPI was not in fact disabled, owner is 0 (rather than -1), +so the NAPI "thinks" it's scheduled for CPU 0 but it's not listed +(!list_empty(&n->poll_list) => false). It seems odd that normal NAPI +processing would wedge itself like this. + +Better suspicion is that netpoll gets enabled while NAPI is polling, +and also grabs the NAPI instance. This confuses napi_complete_done(): + + [netpoll] [normal NAPI] + napi_poll() + have = netpoll_poll_lock() + rcu_access_pointer(dev->npinfo) + return NULL # no netpoll + __napi_poll() + ->poll(->weight) + poll_napi() + cmpxchg(->poll_owner, -1, cpu) + poll_one_napi() + set_bit(NAPI_STATE_NPSVC, ->state) + napi_complete_done() + if (NAPIF_STATE_NPSVC) + return false + # exit without clearing SCHED + +This feels very unlikely, but perhaps virtio has some interactions +with the hypervisor in the NAPI ->poll that makes the race window +larger? + +Best I could to to prove the theory was to add and trigger this +warning in napi_poll (just before netpoll_poll_unlock()): + + WARN_ONCE(!have && rcu_access_pointer(n->dev->npinfo) && + napi_is_scheduled(n) && list_empty(&n->poll_list), + "NAPI race with netpoll %px", n); + +If this warning hits the next virtio_close() will hang. + +This patch survived 30 test iterations without a hang (without it +the longest clean run was around 10). Credit for triggering this +goes to Breno's recent netconsole tests. + +Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") +Reported-by: Paolo Abeni +Link: https://lore.kernel.org/c5a93ed1-9abe-4880-a3bb-8d1678018b1d@redhat.com +Acked-by: Jason Wang +Reviewed-by: Xuan Zhuo +Link: https://patch.msgid.link/20250726010846.1105875-1-kuba@kernel.org +Signed-off-by: Jakub Kicinski +Signed-off-by: Sasha Levin +--- + net/core/netpoll.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/net/core/netpoll.c b/net/core/netpoll.c +index 66a6f6241239..db18154aa238 100644 +--- a/net/core/netpoll.c ++++ b/net/core/netpoll.c +@@ -812,6 +812,13 @@ int netpoll_setup(struct netpoll *np) + goto put; + + rtnl_unlock(); ++ ++ /* Make sure all NAPI polls which started before dev->npinfo ++ * was visible have exited before we start calling NAPI poll. ++ * NAPI skips locking if dev->npinfo is NULL. ++ */ ++ synchronize_rcu(); ++ + return 0; + + put: +-- +2.39.5 + diff --git a/queue-5.10/nfs-fix-filehandle-bounds-checking-in-nfs_fh_to_dent.patch b/queue-5.10/nfs-fix-filehandle-bounds-checking-in-nfs_fh_to_dent.patch new file mode 100644 index 0000000000..56a5b87b85 --- /dev/null +++ b/queue-5.10/nfs-fix-filehandle-bounds-checking-in-nfs_fh_to_dent.patch @@ -0,0 +1,51 @@ +From 0c516fc0b4a3920388db71ba4be73839ed3a8385 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Tue, 22 Jul 2025 09:24:58 -0400 +Subject: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() + +From: Trond Myklebust + +[ Upstream commit ef93a685e01a281b5e2a25ce4e3428cf9371a205 ] + +The function needs to check the minimal filehandle length before it can +access the embedded filehandle. + +Reported-by: zhangjian +Fixes: 20fa19027286 ("nfs: add export operations") +Signed-off-by: Trond Myklebust +Signed-off-by: Sasha Levin +--- + fs/nfs/export.c | 11 +++++++++-- + 1 file changed, 9 insertions(+), 2 deletions(-) + +diff --git a/fs/nfs/export.c b/fs/nfs/export.c +index 993be63ab301..784d0f1cfb93 100644 +--- a/fs/nfs/export.c ++++ b/fs/nfs/export.c +@@ -67,14 +67,21 @@ nfs_fh_to_dentry(struct super_block *sb, struct fid *fid, + struct nfs4_label *label = NULL; + struct nfs_fattr *fattr = NULL; + struct nfs_fh *server_fh = nfs_exp_embedfh(fid->raw); +- size_t fh_size = offsetof(struct nfs_fh, data) + server_fh->size; ++ size_t fh_size = offsetof(struct nfs_fh, data); + const struct nfs_rpc_ops *rpc_ops; + struct dentry *dentry; + struct inode *inode; +- int len = EMBED_FH_OFF + XDR_QUADLEN(fh_size); ++ int len = EMBED_FH_OFF; + u32 *p = fid->raw; + int ret; + ++ /* Initial check of bounds */ ++ if (fh_len < len + XDR_QUADLEN(fh_size) || ++ fh_len > XDR_QUADLEN(NFS_MAXFHSIZE)) ++ return NULL; ++ /* Calculate embedded filehandle size */ ++ fh_size += server_fh->size; ++ len += XDR_QUADLEN(fh_size); + /* NULL translates to ESTALE */ + if (fh_len < len || fh_type != len) + return NULL; +-- +2.39.5 + diff --git a/queue-5.10/nfs-fixup-allocation-flags-for-nfsiod-s-__gfp_noretr.patch b/queue-5.10/nfs-fixup-allocation-flags-for-nfsiod-s-__gfp_noretr.patch new file mode 100644 index 0000000000..9498ff986e --- /dev/null +++ b/queue-5.10/nfs-fixup-allocation-flags-for-nfsiod-s-__gfp_noretr.patch @@ -0,0 +1,55 @@ +From ec7534197c43663fe0592630d2a07f2730990ca6 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Wed, 9 Jul 2025 21:47:43 -0400 +Subject: NFS: Fixup allocation flags for nfsiod's __GFP_NORETRY + +From: Benjamin Coddington + +[ Upstream commit 99765233ab42bf7a4950377ad7894dce8a5c0e60 ] + +If the NFS client is doing writeback from a workqueue context, avoid using +__GFP_NORETRY for allocations if the task has set PF_MEMALLOC_NOIO or +PF_MEMALLOC_NOFS. The combination of these flags makes memory allocation +failures much more likely. + +We've seen those allocation failures show up when the loopback driver is +doing writeback from a workqueue to a file on NFS, where memory allocation +failure results in errors or corruption within the loopback device's +filesystem. + +Suggested-by: Trond Myklebust +Fixes: 0bae835b63c5 ("NFS: Avoid writeback threads getting stuck in mempool_alloc()") +Signed-off-by: Benjamin Coddington +Reviewed-by: Laurence Oberman +Tested-by: Laurence Oberman +Reviewed-by: Jeff Layton +Link: https://lore.kernel.org/r/f83ac1155a4bc670f2663959a7a068571e06afd9.1752111622.git.bcodding@redhat.com +Signed-off-by: Trond Myklebust +Signed-off-by: Sasha Levin +--- + fs/nfs/internal.h | 9 ++++++--- + 1 file changed, 6 insertions(+), 3 deletions(-) + +diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h +index 2fdc7c2a17fe..8af263a30fc0 100644 +--- a/fs/nfs/internal.h ++++ b/fs/nfs/internal.h +@@ -588,9 +588,12 @@ nfs_write_match_verf(const struct nfs_writeverf *verf, + + static inline gfp_t nfs_io_gfp_mask(void) + { +- if (current->flags & PF_WQ_WORKER) +- return GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN; +- return GFP_KERNEL; ++ gfp_t ret = current_gfp_context(GFP_KERNEL); ++ ++ /* For workers __GFP_NORETRY only with __GFP_IO or __GFP_FS */ ++ if ((current->flags & PF_WQ_WORKER) && ret == GFP_KERNEL) ++ ret |= __GFP_NORETRY | __GFP_NOWARN; ++ return ret; + } + + /* unlink.c */ +-- +2.39.5 + diff --git a/queue-5.10/nfsv4.2-another-fix-for-listxattr.patch b/queue-5.10/nfsv4.2-another-fix-for-listxattr.patch new file mode 100644 index 0000000000..063b4f5734 --- /dev/null +++ b/queue-5.10/nfsv4.2-another-fix-for-listxattr.patch @@ -0,0 +1,53 @@ +From 28186800ac24083f4844f29b5f052e758d122fd1 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Tue, 22 Jul 2025 16:56:41 -0400 +Subject: NFSv4.2: another fix for listxattr + +From: Olga Kornievskaia + +[ Upstream commit 9acb237deff7667b0f6b10fe6b1b70c4429ea049 ] + +Currently, when the server supports NFS4.1 security labels then +security.selinux label in included twice. Instead, only add it +when the server doesn't possess security label support. + +Fixes: 243fea134633 ("NFSv4.2: fix listxattr to return selinux security label") +Signed-off-by: Olga Kornievskaia +Link: https://lore.kernel.org/r/20250722205641.79394-1-okorniev@redhat.com +Signed-off-by: Trond Myklebust +Signed-off-by: Sasha Levin +--- + fs/nfs/nfs4proc.c | 10 ++++++---- + 1 file changed, 6 insertions(+), 4 deletions(-) + +diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c +index 77cc1c4219e1..97b5ff9c5c3e 100644 +--- a/fs/nfs/nfs4proc.c ++++ b/fs/nfs/nfs4proc.c +@@ -10378,7 +10378,7 @@ const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = { + + static ssize_t nfs4_listxattr(struct dentry *dentry, char *list, size_t size) + { +- ssize_t error, error2, error3, error4; ++ ssize_t error, error2, error3, error4 = 0; + size_t left = size; + + error = generic_listxattr(dentry, list, left); +@@ -10406,9 +10406,11 @@ static ssize_t nfs4_listxattr(struct dentry *dentry, char *list, size_t size) + left -= error3; + } + +- error4 = security_inode_listsecurity(d_inode(dentry), list, left); +- if (error4 < 0) +- return error4; ++ if (!nfs_server_capable(d_inode(dentry), NFS_CAP_SECURITY_LABEL)) { ++ error4 = security_inode_listsecurity(d_inode(dentry), list, left); ++ if (error4 < 0) ++ return error4; ++ } + + error += error2 + error3 + error4; + if (size && error > size) +-- +2.39.5 + diff --git a/queue-5.10/phy-mscc-fix-parsing-of-unicast-frames.patch b/queue-5.10/phy-mscc-fix-parsing-of-unicast-frames.patch new file mode 100644 index 0000000000..f08e9d919d --- /dev/null +++ b/queue-5.10/phy-mscc-fix-parsing-of-unicast-frames.patch @@ -0,0 +1,53 @@ +From 9b5a341c7501dd2009b18e932fdf304463706821 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Sat, 26 Jul 2025 16:03:07 +0200 +Subject: phy: mscc: Fix parsing of unicast frames + +From: Horatiu Vultur + +[ Upstream commit 6fb5ff63b35b7e849cc8510957f25753f87f63d2 ] + +According to the 1588 standard, it is possible to use both unicast and +multicast frames to send the PTP information. It was noticed that if the +frames were unicast they were not processed by the analyzer meaning that +they were not timestamped. Therefore fix this to match also these +unicast frames. + +Fixes: ab2bf9339357 ("net: phy: mscc: 1588 block initialization") +Signed-off-by: Horatiu Vultur +Reviewed-by: Andrew Lunn +Link: https://patch.msgid.link/20250726140307.3039694-1-horatiu.vultur@microchip.com +Signed-off-by: Jakub Kicinski +Signed-off-by: Sasha Levin +--- + drivers/net/phy/mscc/mscc_ptp.c | 1 + + drivers/net/phy/mscc/mscc_ptp.h | 1 + + 2 files changed, 2 insertions(+) + +diff --git a/drivers/net/phy/mscc/mscc_ptp.c b/drivers/net/phy/mscc/mscc_ptp.c +index 85102e895665..4a00b82d3ca5 100644 +--- a/drivers/net/phy/mscc/mscc_ptp.c ++++ b/drivers/net/phy/mscc/mscc_ptp.c +@@ -897,6 +897,7 @@ static int vsc85xx_eth1_conf(struct phy_device *phydev, enum ts_blk blk, + get_unaligned_be32(ptp_multicast)); + } else { + val |= ANA_ETH1_FLOW_ADDR_MATCH2_ANY_MULTICAST; ++ val |= ANA_ETH1_FLOW_ADDR_MATCH2_ANY_UNICAST; + vsc85xx_ts_write_csr(phydev, blk, + MSCC_ANA_ETH1_FLOW_ADDR_MATCH2(0), val); + vsc85xx_ts_write_csr(phydev, blk, +diff --git a/drivers/net/phy/mscc/mscc_ptp.h b/drivers/net/phy/mscc/mscc_ptp.h +index 3ea163af0f4f..7e3809e4aa5f 100644 +--- a/drivers/net/phy/mscc/mscc_ptp.h ++++ b/drivers/net/phy/mscc/mscc_ptp.h +@@ -98,6 +98,7 @@ + #define MSCC_ANA_ETH1_FLOW_ADDR_MATCH2(x) (MSCC_ANA_ETH1_FLOW_ENA(x) + 3) + #define ANA_ETH1_FLOW_ADDR_MATCH2_MASK_MASK GENMASK(22, 20) + #define ANA_ETH1_FLOW_ADDR_MATCH2_ANY_MULTICAST 0x400000 ++#define ANA_ETH1_FLOW_ADDR_MATCH2_ANY_UNICAST 0x200000 + #define ANA_ETH1_FLOW_ADDR_MATCH2_FULL_ADDR 0x100000 + #define ANA_ETH1_FLOW_ADDR_MATCH2_SRC_DEST_MASK GENMASK(17, 16) + #define ANA_ETH1_FLOW_ADDR_MATCH2_SRC_DEST 0x020000 +-- +2.39.5 + diff --git a/queue-5.10/pnfs-flexfiles-avoid-spurious-layout-returns-in-ff_l.patch b/queue-5.10/pnfs-flexfiles-avoid-spurious-layout-returns-in-ff_l.patch new file mode 100644 index 0000000000..431f4284cf --- /dev/null +++ b/queue-5.10/pnfs-flexfiles-avoid-spurious-layout-returns-in-ff_l.patch @@ -0,0 +1,46 @@ +From 3f5b94c84ac53f5a3be2c00ccd77f37adc1a911a Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Wed, 16 Dec 2020 14:01:07 -0500 +Subject: pNFS/flexfiles: Avoid spurious layout returns in + ff_layout_choose_ds_for_read + +From: Trond Myklebust + +[ Upstream commit 9bfffea3524b49d0268d01f8e7967f06c4d0a942 ] + +The callers of ff_layout_choose_ds_for_read() should decide whether or +not they want to return the layout on error. Sometimes, we may just want +to retry from the beginning. + +Signed-off-by: Trond Myklebust +Stable-dep-of: f06bedfa62d5 ("pNFS/flexfiles: don't attempt pnfs on fatal DS errors") +Signed-off-by: Sasha Levin +--- + fs/nfs/flexfilelayout/flexfilelayout.c | 6 +----- + 1 file changed, 1 insertion(+), 5 deletions(-) + +diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c +index f8962eaec87b..a053dd05057f 100644 +--- a/fs/nfs/flexfilelayout/flexfilelayout.c ++++ b/fs/nfs/flexfilelayout/flexfilelayout.c +@@ -740,16 +740,12 @@ ff_layout_choose_ds_for_read(struct pnfs_layout_segment *lseg, + struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg); + struct nfs4_ff_layout_mirror *mirror; + struct nfs4_pnfs_ds *ds; +- bool fail_return = false; + u32 idx; + + /* mirrors are initially sorted by efficiency */ + for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) { +- if (idx+1 == fls->mirror_array_cnt) +- fail_return = !check_device; +- + mirror = FF_LAYOUT_COMP(lseg, idx); +- ds = nfs4_ff_layout_prepare_ds(lseg, mirror, fail_return); ++ ds = nfs4_ff_layout_prepare_ds(lseg, mirror, false); + if (!ds) + continue; + +-- +2.39.5 + diff --git a/queue-5.10/pnfs-flexfiles-don-t-attempt-pnfs-on-fatal-ds-errors.patch b/queue-5.10/pnfs-flexfiles-don-t-attempt-pnfs-on-fatal-ds-errors.patch new file mode 100644 index 0000000000..472d34bb6e --- /dev/null +++ b/queue-5.10/pnfs-flexfiles-don-t-attempt-pnfs-on-fatal-ds-errors.patch @@ -0,0 +1,176 @@ +From 65ce8df5dee98823a62d5ecdbd9e8adfc0b0580f Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Fri, 27 Jun 2025 09:17:51 +0200 +Subject: pNFS/flexfiles: don't attempt pnfs on fatal DS errors + +From: Tigran Mkrtchyan + +[ Upstream commit f06bedfa62d57f7b67d44aacd6badad2e13a803f ] + +When an applications get killed (SIGTERM/SIGINT) while pNFS client performs a connection +to DS, client ends in an infinite loop of connect-disconnect. This +source of the issue, it that flexfilelayoutdev#nfs4_ff_layout_prepare_ds gets an error +on nfs4_pnfs_ds_connect with status ERESTARTSYS, which is set by rpc_signal_task, but +the error is treated as transient, thus retried. + +The issue is reproducible with Ctrl+C the following script(there should be ~1000 files in +a directory, client should must not have any connections to DSes): + +``` +echo 3 > /proc/sys/vm/drop_caches + +for i in * +do + head -1 $i +done +``` + +The change aims to propagate the nfs4_ff_layout_prepare_ds error state +to the caller that can decide whatever this is a retryable error or not. + +Signed-off-by: Tigran Mkrtchyan +Link: https://lore.kernel.org/r/20250627071751.189663-1-tigran.mkrtchyan@desy.de +Fixes: 260f32adb88d ("pNFS/flexfiles: Check the result of nfs4_pnfs_ds_connect") +Signed-off-by: Trond Myklebust +Signed-off-by: Sasha Levin +--- + fs/nfs/flexfilelayout/flexfilelayout.c | 26 ++++++++++++++--------- + fs/nfs/flexfilelayout/flexfilelayoutdev.c | 6 +++--- + 2 files changed, 19 insertions(+), 13 deletions(-) + +diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c +index a053dd05057f..57150b27c0fd 100644 +--- a/fs/nfs/flexfilelayout/flexfilelayout.c ++++ b/fs/nfs/flexfilelayout/flexfilelayout.c +@@ -739,14 +739,14 @@ ff_layout_choose_ds_for_read(struct pnfs_layout_segment *lseg, + { + struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg); + struct nfs4_ff_layout_mirror *mirror; +- struct nfs4_pnfs_ds *ds; ++ struct nfs4_pnfs_ds *ds = ERR_PTR(-EAGAIN); + u32 idx; + + /* mirrors are initially sorted by efficiency */ + for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) { + mirror = FF_LAYOUT_COMP(lseg, idx); + ds = nfs4_ff_layout_prepare_ds(lseg, mirror, false); +- if (!ds) ++ if (IS_ERR(ds)) + continue; + + if (check_device && +@@ -754,10 +754,10 @@ ff_layout_choose_ds_for_read(struct pnfs_layout_segment *lseg, + continue; + + *best_idx = idx; +- return ds; ++ break; + } + +- return NULL; ++ return ds; + } + + static struct nfs4_pnfs_ds * +@@ -933,7 +933,7 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio, + for (i = 0; i < pgio->pg_mirror_count; i++) { + mirror = FF_LAYOUT_COMP(pgio->pg_lseg, i); + ds = nfs4_ff_layout_prepare_ds(pgio->pg_lseg, mirror, true); +- if (!ds) { ++ if (IS_ERR(ds)) { + if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg)) + goto out_mds; + pnfs_generic_pg_cleanup(pgio); +@@ -1820,6 +1820,7 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr) + u32 idx = hdr->pgio_mirror_idx; + int vers; + struct nfs_fh *fh; ++ bool ds_fatal_error = false; + + dprintk("--> %s ino %lu pgbase %u req %zu@%llu\n", + __func__, hdr->inode->i_ino, +@@ -1827,8 +1828,10 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr) + + mirror = FF_LAYOUT_COMP(lseg, idx); + ds = nfs4_ff_layout_prepare_ds(lseg, mirror, false); +- if (!ds) ++ if (IS_ERR(ds)) { ++ ds_fatal_error = nfs_error_is_fatal(PTR_ERR(ds)); + goto out_failed; ++ } + + ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp, + hdr->inode); +@@ -1869,7 +1872,7 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr) + return PNFS_ATTEMPTED; + + out_failed: +- if (ff_layout_avoid_mds_available_ds(lseg)) ++ if (ff_layout_avoid_mds_available_ds(lseg) && !ds_fatal_error) + return PNFS_TRY_AGAIN; + trace_pnfs_mds_fallback_read_pagelist(hdr->inode, + hdr->args.offset, hdr->args.count, +@@ -1890,11 +1893,14 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync) + int vers; + struct nfs_fh *fh; + u32 idx = hdr->pgio_mirror_idx; ++ bool ds_fatal_error = false; + + mirror = FF_LAYOUT_COMP(lseg, idx); + ds = nfs4_ff_layout_prepare_ds(lseg, mirror, true); +- if (!ds) ++ if (IS_ERR(ds)) { ++ ds_fatal_error = nfs_error_is_fatal(PTR_ERR(ds)); + goto out_failed; ++ } + + ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp, + hdr->inode); +@@ -1937,7 +1943,7 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync) + return PNFS_ATTEMPTED; + + out_failed: +- if (ff_layout_avoid_mds_available_ds(lseg)) ++ if (ff_layout_avoid_mds_available_ds(lseg) && !ds_fatal_error) + return PNFS_TRY_AGAIN; + trace_pnfs_mds_fallback_write_pagelist(hdr->inode, + hdr->args.offset, hdr->args.count, +@@ -1979,7 +1985,7 @@ static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how) + idx = calc_ds_index_from_commit(lseg, data->ds_commit_index); + mirror = FF_LAYOUT_COMP(lseg, idx); + ds = nfs4_ff_layout_prepare_ds(lseg, mirror, true); +- if (!ds) ++ if (IS_ERR(ds)) + goto out_err; + + ds_clnt = nfs4_ff_find_or_create_ds_client(mirror, ds->ds_clp, +diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c +index 4b0cdddce6eb..11777d33a85e 100644 +--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c ++++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c +@@ -368,11 +368,11 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, + struct nfs4_ff_layout_mirror *mirror, + bool fail_return) + { +- struct nfs4_pnfs_ds *ds = NULL; ++ struct nfs4_pnfs_ds *ds; + struct inode *ino = lseg->pls_layout->plh_inode; + struct nfs_server *s = NFS_SERVER(ino); + unsigned int max_payload; +- int status; ++ int status = -EAGAIN; + + if (!ff_layout_init_mirror_ds(lseg->pls_layout, mirror)) + goto noconnect; +@@ -410,7 +410,7 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, + ff_layout_send_layouterror(lseg); + if (fail_return || !ff_layout_has_available_ds(lseg)) + pnfs_error_mark_layout_for_return(ino, lseg); +- ds = NULL; ++ ds = ERR_PTR(status); + out: + return ds; + } +-- +2.39.5 + diff --git a/queue-5.10/pptp-ensure-minimal-skb-length-in-pptp_xmit.patch b/queue-5.10/pptp-ensure-minimal-skb-length-in-pptp_xmit.patch new file mode 100644 index 0000000000..89e683d1a0 --- /dev/null +++ b/queue-5.10/pptp-ensure-minimal-skb-length-in-pptp_xmit.patch @@ -0,0 +1,92 @@ +From 5b4400286e3bac9705d7a2372d03497fd39be708 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Tue, 29 Jul 2025 08:02:07 +0000 +Subject: pptp: ensure minimal skb length in pptp_xmit() + +From: Eric Dumazet + +[ Upstream commit de9c4861fb42f0cd72da844c3c34f692d5895b7b ] + +Commit aabc6596ffb3 ("net: ppp: Add bound checking for skb data +on ppp_sync_txmung") fixed ppp_sync_txmunge() + +We need a similar fix in pptp_xmit(), otherwise we might +read uninit data as reported by syzbot. + +BUG: KMSAN: uninit-value in pptp_xmit+0xc34/0x2720 drivers/net/ppp/pptp.c:193 + pptp_xmit+0xc34/0x2720 drivers/net/ppp/pptp.c:193 + ppp_channel_bridge_input drivers/net/ppp/ppp_generic.c:2290 [inline] + ppp_input+0x1d6/0xe60 drivers/net/ppp/ppp_generic.c:2314 + pppoe_rcv_core+0x1e8/0x760 drivers/net/ppp/pppoe.c:379 + sk_backlog_rcv+0x142/0x420 include/net/sock.h:1148 + __release_sock+0x1d3/0x330 net/core/sock.c:3213 + release_sock+0x6b/0x270 net/core/sock.c:3767 + pppoe_sendmsg+0x15d/0xcb0 drivers/net/ppp/pppoe.c:904 + sock_sendmsg_nosec net/socket.c:712 [inline] + __sock_sendmsg+0x330/0x3d0 net/socket.c:727 + ____sys_sendmsg+0x893/0xd80 net/socket.c:2566 + ___sys_sendmsg+0x271/0x3b0 net/socket.c:2620 + __sys_sendmmsg+0x2d9/0x7c0 net/socket.c:2709 + +Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") +Reported-by: syzbot+afad90ffc8645324afe5@syzkaller.appspotmail.com +Closes: https://lore.kernel.org/netdev/68887d86.a00a0220.b12ec.00cd.GAE@google.com/T/#u +Signed-off-by: Eric Dumazet +Reviewed-by: Dawid Osuchowski +Link: https://patch.msgid.link/20250729080207.1863408-1-edumazet@google.com +Signed-off-by: Jakub Kicinski +Signed-off-by: Sasha Levin +--- + drivers/net/ppp/pptp.c | 15 +++++++++------ + 1 file changed, 9 insertions(+), 6 deletions(-) + +diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c +index 05a75b5a8b68..1b306562f916 100644 +--- a/drivers/net/ppp/pptp.c ++++ b/drivers/net/ppp/pptp.c +@@ -159,9 +159,7 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb) + int len; + unsigned char *data; + __u32 seq_recv; +- +- +- struct rtable *rt; ++ struct rtable *rt = NULL; + struct net_device *tdev; + struct iphdr *iph; + int max_headroom; +@@ -179,16 +177,20 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb) + + if (skb_headroom(skb) < max_headroom || skb_cloned(skb) || skb_shared(skb)) { + struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom); +- if (!new_skb) { +- ip_rt_put(rt); ++ ++ if (!new_skb) + goto tx_error; +- } ++ + if (skb->sk) + skb_set_owner_w(new_skb, skb->sk); + consume_skb(skb); + skb = new_skb; + } + ++ /* Ensure we can safely access protocol field and LCP code */ ++ if (!pskb_may_pull(skb, 3)) ++ goto tx_error; ++ + data = skb->data; + islcp = ((data[0] << 8) + data[1]) == PPP_LCP && 1 <= data[2] && data[2] <= 7; + +@@ -262,6 +264,7 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb) + return 1; + + tx_error: ++ ip_rt_put(rt); + kfree_skb(skb); + return 1; + } +-- +2.39.5 + diff --git a/queue-5.10/pptp-fix-pptp_xmit-error-path.patch b/queue-5.10/pptp-fix-pptp_xmit-error-path.patch new file mode 100644 index 0000000000..97809bcecb --- /dev/null +++ b/queue-5.10/pptp-fix-pptp_xmit-error-path.patch @@ -0,0 +1,84 @@ +From ce22de0be4518fc46cbbd5fa3fb8ddc8f6b0381d Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Thu, 7 Aug 2025 14:21:46 +0000 +Subject: pptp: fix pptp_xmit() error path + +From: Eric Dumazet + +[ Upstream commit ae633388cae349886f1a3cfb27aa092854b24c1b ] + +I accidentally added a bug in pptp_xmit() that syzbot caught for us. + +Only call ip_rt_put() if a route has been allocated. + +BUG: unable to handle page fault for address: ffffffffffffffdb +PGD df3b067 P4D df3b067 PUD df3d067 PMD 0 +Oops: Oops: 0002 [#1] SMP KASAN PTI +CPU: 1 UID: 0 PID: 6346 Comm: syz.0.336 Not tainted 6.16.0-next-20250804-syzkaller #0 PREEMPT(full) +Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 +RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline] +RIP: 0010:raw_atomic_sub_return_release include/linux/atomic/atomic-arch-fallback.h:846 [inline] +RIP: 0010:atomic_sub_return_release include/linux/atomic/atomic-instrumented.h:327 [inline] +RIP: 0010:__rcuref_put include/linux/rcuref.h:109 [inline] +RIP: 0010:rcuref_put+0x172/0x210 include/linux/rcuref.h:173 +Call Trace: + + dst_release+0x24/0x1b0 net/core/dst.c:167 + ip_rt_put include/net/route.h:285 [inline] + pptp_xmit+0x14b/0x1a90 drivers/net/ppp/pptp.c:267 + __ppp_channel_push+0xf2/0x1c0 drivers/net/ppp/ppp_generic.c:2166 + ppp_channel_push+0x123/0x660 drivers/net/ppp/ppp_generic.c:2198 + ppp_write+0x2b0/0x400 drivers/net/ppp/ppp_generic.c:544 + vfs_write+0x27b/0xb30 fs/read_write.c:684 + ksys_write+0x145/0x250 fs/read_write.c:738 + do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] + do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 + entry_SYSCALL_64_after_hwframe+0x77/0x7f + +Fixes: de9c4861fb42 ("pptp: ensure minimal skb length in pptp_xmit()") +Reported-by: syzbot+27d7cfbc93457e472e00@syzkaller.appspotmail.com +Closes: https://lore.kernel.org/netdev/689095a5.050a0220.1fc43d.0009.GAE@google.com/ +Signed-off-by: Eric Dumazet +Link: https://patch.msgid.link/20250807142146.2877060-1-edumazet@google.com +Signed-off-by: Jakub Kicinski +Signed-off-by: Sasha Levin +--- + drivers/net/ppp/pptp.c | 7 ++++--- + 1 file changed, 4 insertions(+), 3 deletions(-) + +diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c +index 1b306562f916..3c1e7155e2bf 100644 +--- a/drivers/net/ppp/pptp.c ++++ b/drivers/net/ppp/pptp.c +@@ -159,17 +159,17 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb) + int len; + unsigned char *data; + __u32 seq_recv; +- struct rtable *rt = NULL; ++ struct rtable *rt; + struct net_device *tdev; + struct iphdr *iph; + int max_headroom; + + if (sk_pppox(po)->sk_state & PPPOX_DEAD) +- goto tx_error; ++ goto tx_drop; + + rt = pptp_route_output(po, &fl4); + if (IS_ERR(rt)) +- goto tx_error; ++ goto tx_drop; + + tdev = rt->dst.dev; + +@@ -265,6 +265,7 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb) + + tx_error: + ip_rt_put(rt); ++tx_drop: + kfree_skb(skb); + return 1; + } +-- +2.39.5 + diff --git a/queue-5.10/series b/queue-5.10/series index 9952993594..93633730e7 100644 --- a/queue-5.10/series +++ b/queue-5.10/series @@ -165,3 +165,19 @@ powerpc-eeh-export-eeh_unfreeze_pe.patch powerpc-eeh-rely-on-dev-link_active_reporting.patch powerpc-eeh-make-eeh-driver-device-hotplug-safe.patch pci-pnv_php-fix-surprise-plug-detection-and-recovery.patch +pnfs-flexfiles-avoid-spurious-layout-returns-in-ff_l.patch +pnfs-flexfiles-don-t-attempt-pnfs-on-fatal-ds-errors.patch +nfs-fix-filehandle-bounds-checking-in-nfs_fh_to_dent.patch +nfsv4.2-another-fix-for-listxattr.patch +mm-extract-might_alloc-debug-check.patch +xarray-add-calls-to-might_alloc.patch +nfs-fixup-allocation-flags-for-nfsiod-s-__gfp_noretr.patch +netpoll-prevent-hanging-napi-when-netcons-gets-enabl.patch +phy-mscc-fix-parsing-of-unicast-frames.patch +pptp-ensure-minimal-skb-length-in-pptp_xmit.patch +ipv6-reject-malicious-packets-in-ipv6_gso_segment.patch +net-drop-ufo-packets-in-udp_rcv_segment.patch +benet-fix-bug-when-creating-vfs.patch +alsa-hda-ca0132-fix-missing-error-handling-in-ca0132.patch +smb-client-let-recv_done-cleanup-before-notifying-th.patch +pptp-fix-pptp_xmit-error-path.patch diff --git a/queue-5.10/smb-client-let-recv_done-cleanup-before-notifying-th.patch b/queue-5.10/smb-client-let-recv_done-cleanup-before-notifying-th.patch new file mode 100644 index 0000000000..0b6555444e --- /dev/null +++ b/queue-5.10/smb-client-let-recv_done-cleanup-before-notifying-th.patch @@ -0,0 +1,79 @@ +From 4aa6d71d88bc97e8cab8d5cca0495552f8b80a63 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Mon, 4 Aug 2025 14:10:15 +0200 +Subject: smb: client: let recv_done() cleanup before notifying the callers. + +From: Stefan Metzmacher + +[ Upstream commit bdd7afc6dca5e0ebbb75583484aa6ea9e03fbb13 ] + +We should call put_receive_buffer() before waking up the callers. + +For the internal error case of response->type being unexpected, +we now also call smbd_disconnect_rdma_connection() instead +of not waking up the callers at all. + +Note that the SMBD_TRANSFER_DATA case still has problems, +which will be addressed in the next commit in order to make +it easier to review this one. + +Cc: Steve French +Cc: Tom Talpey +Cc: Long Li +Cc: linux-cifs@vger.kernel.org +Cc: samba-technical@lists.samba.org +Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection") +Signed-off-by: Stefan Metzmacher +Signed-off-by: Steve French +Signed-off-by: Sasha Levin +--- + fs/cifs/smbdirect.c | 14 ++++++++------ + 1 file changed, 8 insertions(+), 6 deletions(-) + +diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c +index 7d18b9268817..ae332f3771f6 100644 +--- a/fs/cifs/smbdirect.c ++++ b/fs/cifs/smbdirect.c +@@ -454,7 +454,6 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc) + if (wc->status != IB_WC_SUCCESS || wc->opcode != IB_WC_RECV) { + log_rdma_recv(INFO, "wc->status=%d opcode=%d\n", + wc->status, wc->opcode); +- smbd_disconnect_rdma_connection(info); + goto error; + } + +@@ -471,8 +470,9 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc) + info->full_packet_received = true; + info->negotiate_done = + process_negotiation_response(response, wc->byte_len); ++ put_receive_buffer(info, response); + complete(&info->negotiate_completion); +- break; ++ return; + + /* SMBD data transfer packet */ + case SMBD_TRANSFER_DATA: +@@ -529,14 +529,16 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc) + } + + return; +- +- default: +- log_rdma_recv(ERR, +- "unexpected response type=%d\n", response->type); + } + ++ /* ++ * This is an internal error! ++ */ ++ log_rdma_recv(ERR, "unexpected response type=%d\n", response->type); ++ WARN_ON_ONCE(response->type != SMBD_TRANSFER_DATA); + error: + put_receive_buffer(info, response); ++ smbd_disconnect_rdma_connection(info); + } + + static struct rdma_cm_id *smbd_create_id( +-- +2.39.5 + diff --git a/queue-5.10/xarray-add-calls-to-might_alloc.patch b/queue-5.10/xarray-add-calls-to-might_alloc.patch new file mode 100644 index 0000000000..2b9473a805 --- /dev/null +++ b/queue-5.10/xarray-add-calls-to-might_alloc.patch @@ -0,0 +1,159 @@ +From f4f032f8d29f337db1af162749d6bb48e02aa7a0 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Wed, 6 Jul 2022 14:51:00 -0400 +Subject: XArray: Add calls to might_alloc() + +From: Matthew Wilcox (Oracle) + +[ Upstream commit 1dd685c414a7b9fdb3d23aca3aedae84f0b998ae ] + +Catch bogus GFP flags deterministically, instead of occasionally +when we actually have to allocate memory. + +Reported-by: Nikolay Borisov +Signed-off-by: Matthew Wilcox (Oracle) +Stable-dep-of: 99765233ab42 ("NFS: Fixup allocation flags for nfsiod's __GFP_NORETRY") +Signed-off-by: Sasha Levin +--- + include/linux/xarray.h | 15 +++++++++++++++ + tools/include/linux/sched/mm.h | 2 ++ + 2 files changed, 17 insertions(+) + +diff --git a/include/linux/xarray.h b/include/linux/xarray.h +index 92c0160b3352..05c025c5c100 100644 +--- a/include/linux/xarray.h ++++ b/include/linux/xarray.h +@@ -15,6 +15,7 @@ + #include + #include + #include ++#include + #include + #include + +@@ -583,6 +584,7 @@ static inline void *xa_store_bh(struct xarray *xa, unsigned long index, + { + void *curr; + ++ might_alloc(gfp); + xa_lock_bh(xa); + curr = __xa_store(xa, index, entry, gfp); + xa_unlock_bh(xa); +@@ -609,6 +611,7 @@ static inline void *xa_store_irq(struct xarray *xa, unsigned long index, + { + void *curr; + ++ might_alloc(gfp); + xa_lock_irq(xa); + curr = __xa_store(xa, index, entry, gfp); + xa_unlock_irq(xa); +@@ -684,6 +687,7 @@ static inline void *xa_cmpxchg(struct xarray *xa, unsigned long index, + { + void *curr; + ++ might_alloc(gfp); + xa_lock(xa); + curr = __xa_cmpxchg(xa, index, old, entry, gfp); + xa_unlock(xa); +@@ -711,6 +715,7 @@ static inline void *xa_cmpxchg_bh(struct xarray *xa, unsigned long index, + { + void *curr; + ++ might_alloc(gfp); + xa_lock_bh(xa); + curr = __xa_cmpxchg(xa, index, old, entry, gfp); + xa_unlock_bh(xa); +@@ -738,6 +743,7 @@ static inline void *xa_cmpxchg_irq(struct xarray *xa, unsigned long index, + { + void *curr; + ++ might_alloc(gfp); + xa_lock_irq(xa); + curr = __xa_cmpxchg(xa, index, old, entry, gfp); + xa_unlock_irq(xa); +@@ -767,6 +773,7 @@ static inline int __must_check xa_insert(struct xarray *xa, + { + int err; + ++ might_alloc(gfp); + xa_lock(xa); + err = __xa_insert(xa, index, entry, gfp); + xa_unlock(xa); +@@ -796,6 +803,7 @@ static inline int __must_check xa_insert_bh(struct xarray *xa, + { + int err; + ++ might_alloc(gfp); + xa_lock_bh(xa); + err = __xa_insert(xa, index, entry, gfp); + xa_unlock_bh(xa); +@@ -825,6 +833,7 @@ static inline int __must_check xa_insert_irq(struct xarray *xa, + { + int err; + ++ might_alloc(gfp); + xa_lock_irq(xa); + err = __xa_insert(xa, index, entry, gfp); + xa_unlock_irq(xa); +@@ -854,6 +863,7 @@ static inline __must_check int xa_alloc(struct xarray *xa, u32 *id, + { + int err; + ++ might_alloc(gfp); + xa_lock(xa); + err = __xa_alloc(xa, id, entry, limit, gfp); + xa_unlock(xa); +@@ -883,6 +893,7 @@ static inline int __must_check xa_alloc_bh(struct xarray *xa, u32 *id, + { + int err; + ++ might_alloc(gfp); + xa_lock_bh(xa); + err = __xa_alloc(xa, id, entry, limit, gfp); + xa_unlock_bh(xa); +@@ -912,6 +923,7 @@ static inline int __must_check xa_alloc_irq(struct xarray *xa, u32 *id, + { + int err; + ++ might_alloc(gfp); + xa_lock_irq(xa); + err = __xa_alloc(xa, id, entry, limit, gfp); + xa_unlock_irq(xa); +@@ -945,6 +957,7 @@ static inline int xa_alloc_cyclic(struct xarray *xa, u32 *id, void *entry, + { + int err; + ++ might_alloc(gfp); + xa_lock(xa); + err = __xa_alloc_cyclic(xa, id, entry, limit, next, gfp); + xa_unlock(xa); +@@ -978,6 +991,7 @@ static inline int xa_alloc_cyclic_bh(struct xarray *xa, u32 *id, void *entry, + { + int err; + ++ might_alloc(gfp); + xa_lock_bh(xa); + err = __xa_alloc_cyclic(xa, id, entry, limit, next, gfp); + xa_unlock_bh(xa); +@@ -1011,6 +1025,7 @@ static inline int xa_alloc_cyclic_irq(struct xarray *xa, u32 *id, void *entry, + { + int err; + ++ might_alloc(gfp); + xa_lock_irq(xa); + err = __xa_alloc_cyclic(xa, id, entry, limit, next, gfp); + xa_unlock_irq(xa); +diff --git a/tools/include/linux/sched/mm.h b/tools/include/linux/sched/mm.h +index c8d9f19c1f35..967294b8edcf 100644 +--- a/tools/include/linux/sched/mm.h ++++ b/tools/include/linux/sched/mm.h +@@ -1,4 +1,6 @@ + #ifndef _TOOLS_PERF_LINUX_SCHED_MM_H + #define _TOOLS_PERF_LINUX_SCHED_MM_H + ++#define might_alloc(gfp) do { } while (0) ++ + #endif /* _TOOLS_PERF_LINUX_SCHED_MM_H */ +-- +2.39.5 +