--- /dev/null
+From e42e70ad6ae2ae511a6143d2e8da929366e58bd9 Mon Sep 17 00:00:00 2001
+From: Eric Dumazet <edumazet@google.com>
+Date: Mon, 31 Jan 2022 18:23:58 -0800
+Subject: af_packet: fix data-race in packet_setsockopt / packet_setsockopt
+
+From: Eric Dumazet <edumazet@google.com>
+
+commit e42e70ad6ae2ae511a6143d2e8da929366e58bd9 upstream.
+
+When packet_setsockopt( PACKET_FANOUT_DATA ) reads po->fanout,
+no lock is held, meaning that another thread can change po->fanout.
+
+Given that po->fanout can only be set once during the socket lifetime
+(it is only cleared from fanout_release()), we can use
+READ_ONCE()/WRITE_ONCE() to document the race.
+
+BUG: KCSAN: data-race in packet_setsockopt / packet_setsockopt
+
+write to 0xffff88813ae8e300 of 8 bytes by task 14653 on cpu 0:
+ fanout_add net/packet/af_packet.c:1791 [inline]
+ packet_setsockopt+0x22fe/0x24a0 net/packet/af_packet.c:3931
+ __sys_setsockopt+0x209/0x2a0 net/socket.c:2180
+ __do_sys_setsockopt net/socket.c:2191 [inline]
+ __se_sys_setsockopt net/socket.c:2188 [inline]
+ __x64_sys_setsockopt+0x62/0x70 net/socket.c:2188
+ do_syscall_x64 arch/x86/entry/common.c:50 [inline]
+ do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
+ entry_SYSCALL_64_after_hwframe+0x44/0xae
+
+read to 0xffff88813ae8e300 of 8 bytes by task 14654 on cpu 1:
+ packet_setsockopt+0x691/0x24a0 net/packet/af_packet.c:3935
+ __sys_setsockopt+0x209/0x2a0 net/socket.c:2180
+ __do_sys_setsockopt net/socket.c:2191 [inline]
+ __se_sys_setsockopt net/socket.c:2188 [inline]
+ __x64_sys_setsockopt+0x62/0x70 net/socket.c:2188
+ do_syscall_x64 arch/x86/entry/common.c:50 [inline]
+ do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
+ entry_SYSCALL_64_after_hwframe+0x44/0xae
+
+value changed: 0x0000000000000000 -> 0xffff888106f8c000
+
+Reported by Kernel Concurrency Sanitizer on:
+CPU: 1 PID: 14654 Comm: syz-executor.3 Not tainted 5.16.0-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+
+Fixes: 47dceb8ecdc1 ("packet: add classic BPF fanout mode")
+Signed-off-by: Eric Dumazet <edumazet@google.com>
+Cc: Willem de Bruijn <willemb@google.com>
+Reported-by: syzbot <syzkaller@googlegroups.com>
+Link: https://lore.kernel.org/r/20220201022358.330621-1-eric.dumazet@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/packet/af_packet.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -1729,7 +1729,10 @@ static int fanout_add(struct sock *sk, u
+ err = -ENOSPC;
+ if (refcount_read(&match->sk_ref) < PACKET_FANOUT_MAX) {
+ __dev_remove_pack(&po->prot_hook);
+- po->fanout = match;
++
++ /* Paired with packet_setsockopt(PACKET_FANOUT_DATA) */
++ WRITE_ONCE(po->fanout, match);
++
+ po->rollover = rollover;
+ rollover = NULL;
+ refcount_set(&match->sk_ref, refcount_read(&match->sk_ref) + 1);
+@@ -3876,7 +3879,8 @@ packet_setsockopt(struct socket *sock, i
+ }
+ case PACKET_FANOUT_DATA:
+ {
+- if (!po->fanout)
++ /* Paired with the WRITE_ONCE() in fanout_add() */
++ if (!READ_ONCE(po->fanout))
+ return -EINVAL;
+
+ return fanout_set_data(po, optval, optlen);
--- /dev/null
+From 24f6008564183aa120d07c03d9289519c2fe02af Mon Sep 17 00:00:00 2001
+From: "Eric W. Biederman" <ebiederm@xmission.com>
+Date: Thu, 20 Jan 2022 11:04:01 -0600
+Subject: cgroup-v1: Require capabilities to set release_agent
+
+From: Eric W. Biederman <ebiederm@xmission.com>
+
+commit 24f6008564183aa120d07c03d9289519c2fe02af upstream.
+
+The cgroup release_agent is called with call_usermodehelper. The function
+call_usermodehelper starts the release_agent with a full set fo capabilities.
+Therefore require capabilities when setting the release_agaent.
+
+Reported-by: Tabitha Sable <tabitha.c.sable@gmail.com>
+Tested-by: Tabitha Sable <tabitha.c.sable@gmail.com>
+Fixes: 81a6a5cdd2c5 ("Task Control Groups: automatic userspace notification of idle cgroups")
+Cc: stable@vger.kernel.org # v2.6.24+
+Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
+Signed-off-by: Tejun Heo <tj@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/cgroup/cgroup-v1.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+--- a/kernel/cgroup/cgroup-v1.c
++++ b/kernel/cgroup/cgroup-v1.c
+@@ -549,6 +549,14 @@ static ssize_t cgroup_release_agent_writ
+
+ BUILD_BUG_ON(sizeof(cgrp->root->release_agent_path) < PATH_MAX);
+
++ /*
++ * Release agent gets called with all capabilities,
++ * require capabilities to set release agent.
++ */
++ if ((of->file->f_cred->user_ns != &init_user_ns) ||
++ !capable(CAP_SYS_ADMIN))
++ return -EPERM;
++
+ cgrp = cgroup_kn_lock_live(of->kn, false);
+ if (!cgrp)
+ return -ENODEV;
+@@ -961,6 +969,12 @@ int cgroup1_parse_param(struct fs_contex
+ /* Specifying two release agents is forbidden */
+ if (ctx->release_agent)
+ return cg_invalf(fc, "cgroup1: release_agent respecified");
++ /*
++ * Release agent gets called with all capabilities,
++ * require capabilities to set release agent.
++ */
++ if ((fc->user_ns != &init_user_ns) || !capable(CAP_SYS_ADMIN))
++ return cg_invalf(fc, "cgroup1: Setting release_agent not allowed");
+ ctx->release_agent = param->string;
+ param->string = NULL;
+ break;
--- /dev/null
+From c80d401c52a2d1baf2a5afeb06f0ffe678e56d23 Mon Sep 17 00:00:00 2001
+From: Tianchen Ding <dtcccc@linux.alibaba.com>
+Date: Tue, 18 Jan 2022 18:05:18 +0800
+Subject: cpuset: Fix the bug that subpart_cpus updated wrongly in update_cpumask()
+
+From: Tianchen Ding <dtcccc@linux.alibaba.com>
+
+commit c80d401c52a2d1baf2a5afeb06f0ffe678e56d23 upstream.
+
+subparts_cpus should be limited as a subset of cpus_allowed, but it is
+updated wrongly by using cpumask_andnot(). Use cpumask_and() instead to
+fix it.
+
+Fixes: ee8dde0cd2ce ("cpuset: Add new v2 cpuset.sched.partition flag")
+Signed-off-by: Tianchen Ding <dtcccc@linux.alibaba.com>
+Reviewed-by: Waiman Long <longman@redhat.com>
+Signed-off-by: Tejun Heo <tj@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/cgroup/cpuset.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/kernel/cgroup/cpuset.c
++++ b/kernel/cgroup/cpuset.c
+@@ -1558,8 +1558,7 @@ static int update_cpumask(struct cpuset
+ * Make sure that subparts_cpus is a subset of cpus_allowed.
+ */
+ if (cs->nr_subparts_cpus) {
+- cpumask_andnot(cs->subparts_cpus, cs->subparts_cpus,
+- cs->cpus_allowed);
++ cpumask_and(cs->subparts_cpus, cs->subparts_cpus, cs->cpus_allowed);
+ cs->nr_subparts_cpus = cpumask_weight(cs->subparts_cpus);
+ }
+ spin_unlock_irq(&callback_lock);
--- /dev/null
+From 63e4b45c82ed1bde979da7052229a4229ce9cabf Mon Sep 17 00:00:00 2001
+From: Georgi Valkov <gvalkov@abv.bg>
+Date: Tue, 1 Feb 2022 08:16:18 +0100
+Subject: ipheth: fix EOVERFLOW in ipheth_rcvbulk_callback
+
+From: Georgi Valkov <gvalkov@abv.bg>
+
+commit 63e4b45c82ed1bde979da7052229a4229ce9cabf upstream.
+
+When rx_buf is allocated we need to account for IPHETH_IP_ALIGN,
+which reduces the usable size by 2 bytes. Otherwise we have 1512
+bytes usable instead of 1514, and if we receive more than 1512
+bytes, ipheth_rcvbulk_callback is called with status -EOVERFLOW,
+after which the driver malfunctiones and all communication stops.
+
+Resolves ipheth 2-1:4.2: ipheth_rcvbulk_callback: urb status: -75
+
+Fixes: f33d9e2b48a3 ("usbnet: ipheth: fix connectivity with iOS 14")
+Signed-off-by: Georgi Valkov <gvalkov@abv.bg>
+Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
+Link: https://lore.kernel.org/all/B60B8A4B-92A0-49B3-805D-809A2433B46C@abv.bg/
+Link: https://lore.kernel.org/all/24851bd2769434a5fc24730dce8e8a984c5a4505.1643699778.git.jan.kiszka@siemens.com/
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/usb/ipheth.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/usb/ipheth.c
++++ b/drivers/net/usb/ipheth.c
+@@ -121,7 +121,7 @@ static int ipheth_alloc_urbs(struct iphe
+ if (tx_buf == NULL)
+ goto free_rx_urb;
+
+- rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
++ rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE + IPHETH_IP_ALIGN,
+ GFP_KERNEL, &rx_urb->transfer_dma);
+ if (rx_buf == NULL)
+ goto free_tx_buf;
+@@ -146,7 +146,7 @@ error_nomem:
+
+ static void ipheth_free_urbs(struct ipheth_device *iphone)
+ {
+- usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
++ usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE + IPHETH_IP_ALIGN, iphone->rx_buf,
+ iphone->rx_urb->transfer_dma);
+ usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
+ iphone->tx_urb->transfer_dma);
+@@ -317,7 +317,7 @@ static int ipheth_rx_submit(struct iphet
+
+ usb_fill_bulk_urb(dev->rx_urb, udev,
+ usb_rcvbulkpipe(udev, dev->bulk_in),
+- dev->rx_buf, IPHETH_BUF_SIZE,
++ dev->rx_buf, IPHETH_BUF_SIZE + IPHETH_IP_ALIGN,
+ ipheth_rcvbulk_callback,
+ dev);
+ dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
--- /dev/null
+From 7674b7b559b683478c3832527c59bceb169e701d Mon Sep 17 00:00:00 2001
+From: Raju Rangoju <Raju.Rangoju@amd.com>
+Date: Thu, 27 Jan 2022 11:32:22 +0530
+Subject: net: amd-xgbe: ensure to reset the tx_timer_active flag
+
+From: Raju Rangoju <Raju.Rangoju@amd.com>
+
+commit 7674b7b559b683478c3832527c59bceb169e701d upstream.
+
+Ensure to reset the tx_timer_active flag in xgbe_stop(),
+otherwise a port restart may result in tx timeout due to
+uncleared flag.
+
+Fixes: c635eaacbf77 ("amd-xgbe: Remove Tx coalescing")
+Co-developed-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
+Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
+Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
+Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
+Link: https://lore.kernel.org/r/20220127060222.453371-1-Raju.Rangoju@amd.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
++++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+@@ -721,7 +721,9 @@ static void xgbe_stop_timers(struct xgbe
+ if (!channel->tx_ring)
+ break;
+
++ /* Deactivate the Tx timer */
+ del_timer_sync(&channel->tx_timer);
++ channel->tx_timer_active = 0;
+ }
+ }
+
--- /dev/null
+From 5aac9108a180fc06e28d4e7fb00247ce603b72ee Mon Sep 17 00:00:00 2001
+From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+Date: Thu, 27 Jan 2022 14:50:03 +0530
+Subject: net: amd-xgbe: Fix skb data length underflow
+
+From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+
+commit 5aac9108a180fc06e28d4e7fb00247ce603b72ee upstream.
+
+There will be BUG_ON() triggered in include/linux/skbuff.h leading to
+intermittent kernel panic, when the skb length underflow is detected.
+
+Fix this by dropping the packet if such length underflows are seen
+because of inconsistencies in the hardware descriptors.
+
+Fixes: 622c36f143fc ("amd-xgbe: Fix jumbo MTU processing on newer hardware")
+Suggested-by: Tom Lendacky <thomas.lendacky@amd.com>
+Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
+Link: https://lore.kernel.org/r/20220127092003.2812745-1-Shyam-sundar.S-k@amd.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
++++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+@@ -2767,6 +2767,14 @@ read_again:
+ buf2_len = xgbe_rx_buf2_len(rdata, packet, len);
+ len += buf2_len;
+
++ if (buf2_len > rdata->rx.buf.dma_len) {
++ /* Hardware inconsistency within the descriptors
++ * that has resulted in a length underflow.
++ */
++ error = 1;
++ goto skip_data;
++ }
++
+ if (!skb) {
+ skb = xgbe_create_skb(pdata, napi, rdata,
+ buf1_len);
+@@ -2796,8 +2804,10 @@ skip_data:
+ if (!last || context_next)
+ goto read_again;
+
+- if (!skb)
++ if (!skb || error) {
++ dev_kfree_skb(skb);
+ goto next_packet;
++ }
+
+ /* Be sure we don't exceed the configured MTU */
+ max_len = netdev->mtu + ETH_HLEN;
--- /dev/null
+From 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 Mon Sep 17 00:00:00 2001
+From: Eric Dumazet <edumazet@google.com>
+Date: Mon, 31 Jan 2022 09:20:18 -0800
+Subject: net: sched: fix use-after-free in tc_new_tfilter()
+
+From: Eric Dumazet <edumazet@google.com>
+
+commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 upstream.
+
+Whenever tc_new_tfilter() jumps back to replay: label,
+we need to make sure @q and @chain local variables are cleared again,
+or risk use-after-free as in [1]
+
+For consistency, apply the same fix in tc_ctl_chain()
+
+BUG: KASAN: use-after-free in mini_qdisc_pair_swap+0x1b9/0x1f0 net/sched/sch_generic.c:1581
+Write of size 8 at addr ffff8880985c4b08 by task syz-executor.4/1945
+
+CPU: 0 PID: 1945 Comm: syz-executor.4 Not tainted 5.17.0-rc1-syzkaller-00495-gff58831fa02d #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+Call Trace:
+ <TASK>
+ __dump_stack lib/dump_stack.c:88 [inline]
+ dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
+ print_address_description.constprop.0.cold+0x8d/0x336 mm/kasan/report.c:255
+ __kasan_report mm/kasan/report.c:442 [inline]
+ kasan_report.cold+0x83/0xdf mm/kasan/report.c:459
+ mini_qdisc_pair_swap+0x1b9/0x1f0 net/sched/sch_generic.c:1581
+ tcf_chain_head_change_item net/sched/cls_api.c:372 [inline]
+ tcf_chain0_head_change.isra.0+0xb9/0x120 net/sched/cls_api.c:386
+ tcf_chain_tp_insert net/sched/cls_api.c:1657 [inline]
+ tcf_chain_tp_insert_unique net/sched/cls_api.c:1707 [inline]
+ tc_new_tfilter+0x1e67/0x2350 net/sched/cls_api.c:2086
+ rtnetlink_rcv_msg+0x80d/0xb80 net/core/rtnetlink.c:5583
+ netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
+ netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
+ netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
+ netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
+ sock_sendmsg_nosec net/socket.c:705 [inline]
+ sock_sendmsg+0xcf/0x120 net/socket.c:725
+ ____sys_sendmsg+0x331/0x810 net/socket.c:2413
+ ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
+ __sys_sendmmsg+0x195/0x470 net/socket.c:2553
+ __do_sys_sendmmsg net/socket.c:2582 [inline]
+ __se_sys_sendmmsg net/socket.c:2579 [inline]
+ __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579
+ do_syscall_x64 arch/x86/entry/common.c:50 [inline]
+ do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
+ entry_SYSCALL_64_after_hwframe+0x44/0xae
+RIP: 0033:0x7f2647172059
+Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
+RSP: 002b:00007f2645aa5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
+RAX: ffffffffffffffda RBX: 00007f2647285100 RCX: 00007f2647172059
+RDX: 040000000000009f RSI: 00000000200002c0 RDI: 0000000000000006
+RBP: 00007f26471cc08d R08: 0000000000000000 R09: 0000000000000000
+R10: 9e00000000000000 R11: 0000000000000246 R12: 0000000000000000
+R13: 00007fffb3f7f02f R14: 00007f2645aa5300 R15: 0000000000022000
+ </TASK>
+
+Allocated by task 1944:
+ kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
+ kasan_set_track mm/kasan/common.c:45 [inline]
+ set_alloc_info mm/kasan/common.c:436 [inline]
+ ____kasan_kmalloc mm/kasan/common.c:515 [inline]
+ ____kasan_kmalloc mm/kasan/common.c:474 [inline]
+ __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:524
+ kmalloc_node include/linux/slab.h:604 [inline]
+ kzalloc_node include/linux/slab.h:726 [inline]
+ qdisc_alloc+0xac/0xa10 net/sched/sch_generic.c:941
+ qdisc_create.constprop.0+0xce/0x10f0 net/sched/sch_api.c:1211
+ tc_modify_qdisc+0x4c5/0x1980 net/sched/sch_api.c:1660
+ rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5592
+ netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
+ netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
+ netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
+ netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
+ sock_sendmsg_nosec net/socket.c:705 [inline]
+ sock_sendmsg+0xcf/0x120 net/socket.c:725
+ ____sys_sendmsg+0x331/0x810 net/socket.c:2413
+ ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
+ __sys_sendmmsg+0x195/0x470 net/socket.c:2553
+ __do_sys_sendmmsg net/socket.c:2582 [inline]
+ __se_sys_sendmmsg net/socket.c:2579 [inline]
+ __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579
+ do_syscall_x64 arch/x86/entry/common.c:50 [inline]
+ do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
+ entry_SYSCALL_64_after_hwframe+0x44/0xae
+
+Freed by task 3609:
+ kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
+ kasan_set_track+0x21/0x30 mm/kasan/common.c:45
+ kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
+ ____kasan_slab_free mm/kasan/common.c:366 [inline]
+ ____kasan_slab_free+0x130/0x160 mm/kasan/common.c:328
+ kasan_slab_free include/linux/kasan.h:236 [inline]
+ slab_free_hook mm/slub.c:1728 [inline]
+ slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1754
+ slab_free mm/slub.c:3509 [inline]
+ kfree+0xcb/0x280 mm/slub.c:4562
+ rcu_do_batch kernel/rcu/tree.c:2527 [inline]
+ rcu_core+0x7b8/0x1540 kernel/rcu/tree.c:2778
+ __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
+
+Last potentially related work creation:
+ kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
+ __kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348
+ __call_rcu kernel/rcu/tree.c:3026 [inline]
+ call_rcu+0xb1/0x740 kernel/rcu/tree.c:3106
+ qdisc_put_unlocked+0x6f/0x90 net/sched/sch_generic.c:1109
+ tcf_block_release+0x86/0x90 net/sched/cls_api.c:1238
+ tc_new_tfilter+0xc0d/0x2350 net/sched/cls_api.c:2148
+ rtnetlink_rcv_msg+0x80d/0xb80 net/core/rtnetlink.c:5583
+ netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
+ netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
+ netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
+ netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
+ sock_sendmsg_nosec net/socket.c:705 [inline]
+ sock_sendmsg+0xcf/0x120 net/socket.c:725
+ ____sys_sendmsg+0x331/0x810 net/socket.c:2413
+ ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
+ __sys_sendmmsg+0x195/0x470 net/socket.c:2553
+ __do_sys_sendmmsg net/socket.c:2582 [inline]
+ __se_sys_sendmmsg net/socket.c:2579 [inline]
+ __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579
+ do_syscall_x64 arch/x86/entry/common.c:50 [inline]
+ do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
+ entry_SYSCALL_64_after_hwframe+0x44/0xae
+
+The buggy address belongs to the object at ffff8880985c4800
+ which belongs to the cache kmalloc-1k of size 1024
+The buggy address is located 776 bytes inside of
+ 1024-byte region [ffff8880985c4800, ffff8880985c4c00)
+The buggy address belongs to the page:
+page:ffffea0002617000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x985c0
+head:ffffea0002617000 order:3 compound_mapcount:0 compound_pincount:0
+flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
+raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888010c41dc0
+raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
+page dumped because: kasan: bad access detected
+page_owner tracks the page as allocated
+page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 1941, ts 1038999441284, free_ts 1033444432829
+ prep_new_page mm/page_alloc.c:2434 [inline]
+ get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4165
+ __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5389
+ alloc_pages+0x1aa/0x310 mm/mempolicy.c:2271
+ alloc_slab_page mm/slub.c:1799 [inline]
+ allocate_slab mm/slub.c:1944 [inline]
+ new_slab+0x28a/0x3b0 mm/slub.c:2004
+ ___slab_alloc+0x87c/0xe90 mm/slub.c:3018
+ __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3105
+ slab_alloc_node mm/slub.c:3196 [inline]
+ slab_alloc mm/slub.c:3238 [inline]
+ __kmalloc+0x2fb/0x340 mm/slub.c:4420
+ kmalloc include/linux/slab.h:586 [inline]
+ kzalloc include/linux/slab.h:715 [inline]
+ __register_sysctl_table+0x112/0x1090 fs/proc/proc_sysctl.c:1335
+ neigh_sysctl_register+0x2c8/0x5e0 net/core/neighbour.c:3787
+ devinet_sysctl_register+0xb1/0x230 net/ipv4/devinet.c:2618
+ inetdev_init+0x286/0x580 net/ipv4/devinet.c:278
+ inetdev_event+0xa8a/0x15d0 net/ipv4/devinet.c:1532
+ notifier_call_chain+0xb5/0x200 kernel/notifier.c:84
+ call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1919
+ call_netdevice_notifiers_extack net/core/dev.c:1931 [inline]
+ call_netdevice_notifiers net/core/dev.c:1945 [inline]
+ register_netdevice+0x1073/0x1500 net/core/dev.c:9698
+ veth_newlink+0x59c/0xa90 drivers/net/veth.c:1722
+page last free stack trace:
+ reset_page_owner include/linux/page_owner.h:24 [inline]
+ free_pages_prepare mm/page_alloc.c:1352 [inline]
+ free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1404
+ free_unref_page_prepare mm/page_alloc.c:3325 [inline]
+ free_unref_page+0x19/0x690 mm/page_alloc.c:3404
+ release_pages+0x748/0x1220 mm/swap.c:956
+ tlb_batch_pages_flush mm/mmu_gather.c:50 [inline]
+ tlb_flush_mmu_free mm/mmu_gather.c:243 [inline]
+ tlb_flush_mmu+0xe9/0x6b0 mm/mmu_gather.c:250
+ zap_pte_range mm/memory.c:1441 [inline]
+ zap_pmd_range mm/memory.c:1490 [inline]
+ zap_pud_range mm/memory.c:1519 [inline]
+ zap_p4d_range mm/memory.c:1540 [inline]
+ unmap_page_range+0x1d1d/0x2a30 mm/memory.c:1561
+ unmap_single_vma+0x198/0x310 mm/memory.c:1606
+ unmap_vmas+0x16b/0x2f0 mm/memory.c:1638
+ exit_mmap+0x201/0x670 mm/mmap.c:3178
+ __mmput+0x122/0x4b0 kernel/fork.c:1114
+ mmput+0x56/0x60 kernel/fork.c:1135
+ exit_mm kernel/exit.c:507 [inline]
+ do_exit+0xa3c/0x2a30 kernel/exit.c:793
+ do_group_exit+0xd2/0x2f0 kernel/exit.c:935
+ __do_sys_exit_group kernel/exit.c:946 [inline]
+ __se_sys_exit_group kernel/exit.c:944 [inline]
+ __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:944
+ do_syscall_x64 arch/x86/entry/common.c:50 [inline]
+ do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
+ entry_SYSCALL_64_after_hwframe+0x44/0xae
+
+Memory state around the buggy address:
+ ffff8880985c4a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ ffff8880985c4a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+>ffff8880985c4b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ ^
+ ffff8880985c4b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+ ffff8880985c4c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+
+Fixes: 470502de5bdb ("net: sched: unlock rules update API")
+Signed-off-by: Eric Dumazet <edumazet@google.com>
+Cc: Vlad Buslov <vladbu@mellanox.com>
+Cc: Jiri Pirko <jiri@mellanox.com>
+Cc: Cong Wang <xiyou.wangcong@gmail.com>
+Reported-by: syzbot <syzkaller@googlegroups.com>
+Link: https://lore.kernel.org/r/20220131172018.3704490-1-eric.dumazet@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/sched/cls_api.c | 11 +++++++----
+ 1 file changed, 7 insertions(+), 4 deletions(-)
+
+--- a/net/sched/cls_api.c
++++ b/net/sched/cls_api.c
+@@ -1928,9 +1928,9 @@ static int tc_new_tfilter(struct sk_buff
+ bool prio_allocate;
+ u32 parent;
+ u32 chain_index;
+- struct Qdisc *q = NULL;
++ struct Qdisc *q;
+ struct tcf_chain_info chain_info;
+- struct tcf_chain *chain = NULL;
++ struct tcf_chain *chain;
+ struct tcf_block *block;
+ struct tcf_proto *tp;
+ unsigned long cl;
+@@ -1958,6 +1958,8 @@ replay:
+ tp = NULL;
+ cl = 0;
+ block = NULL;
++ q = NULL;
++ chain = NULL;
+
+ if (prio == 0) {
+ /* If no priority is provided by the user,
+@@ -2764,8 +2766,8 @@ static int tc_ctl_chain(struct sk_buff *
+ struct tcmsg *t;
+ u32 parent;
+ u32 chain_index;
+- struct Qdisc *q = NULL;
+- struct tcf_chain *chain = NULL;
++ struct Qdisc *q;
++ struct tcf_chain *chain;
+ struct tcf_block *block;
+ unsigned long cl;
+ int err;
+@@ -2775,6 +2777,7 @@ static int tc_ctl_chain(struct sk_buff *
+ return -EPERM;
+
+ replay:
++ q = NULL;
+ err = nlmsg_parse_deprecated(n, sizeof(*t), tca, TCA_MAX,
+ rtm_tca_policy, extack);
+ if (err < 0)
--- /dev/null
+From c6f6f2444bdbe0079e41914a35081530d0409963 Mon Sep 17 00:00:00 2001
+From: Eric Dumazet <edumazet@google.com>
+Date: Mon, 31 Jan 2022 17:21:06 -0800
+Subject: rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
+
+From: Eric Dumazet <edumazet@google.com>
+
+commit c6f6f2444bdbe0079e41914a35081530d0409963 upstream.
+
+While looking at one unrelated syzbot bug, I found the replay logic
+in __rtnl_newlink() to potentially trigger use-after-free.
+
+It is better to clear master_dev and m_ops inside the loop,
+in case we have to replay it.
+
+Fixes: ba7d49b1f0f8 ("rtnetlink: provide api for getting and setting slave info")
+Signed-off-by: Eric Dumazet <edumazet@google.com>
+Cc: Jiri Pirko <jiri@nvidia.com>
+Link: https://lore.kernel.org/r/20220201012106.216495-1-eric.dumazet@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/core/rtnetlink.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/net/core/rtnetlink.c
++++ b/net/core/rtnetlink.c
+@@ -3022,8 +3022,8 @@ static int __rtnl_newlink(struct sk_buff
+ struct nlattr *slave_attr[RTNL_SLAVE_MAX_TYPE + 1];
+ unsigned char name_assign_type = NET_NAME_USER;
+ struct nlattr *linkinfo[IFLA_INFO_MAX + 1];
+- const struct rtnl_link_ops *m_ops = NULL;
+- struct net_device *master_dev = NULL;
++ const struct rtnl_link_ops *m_ops;
++ struct net_device *master_dev;
+ struct net *net = sock_net(skb->sk);
+ const struct rtnl_link_ops *ops;
+ struct nlattr *tb[IFLA_MAX + 1];
+@@ -3063,6 +3063,8 @@ replay:
+ dev = NULL;
+ }
+
++ master_dev = NULL;
++ m_ops = NULL;
+ if (dev) {
+ master_dev = netdev_master_upper_dev_get(dev);
+ if (master_dev)
pci-pciehp-fix-infinite-loop-in-irq-handler-upon-power-fault.patch
psi-fix-uaf-issue-when-psi-trigger-is-destroyed-while-being-polled.patch
+cgroup-v1-require-capabilities-to-set-release_agent.patch
+ipheth-fix-eoverflow-in-ipheth_rcvbulk_callback.patch
+net-amd-xgbe-ensure-to-reset-the-tx_timer_active-flag.patch
+net-amd-xgbe-fix-skb-data-length-underflow.patch
+net-sched-fix-use-after-free-in-tc_new_tfilter.patch
+rtnetlink-make-sure-to-refresh-master_dev-m_ops-in-__rtnl_newlink.patch
+cpuset-fix-the-bug-that-subpart_cpus-updated-wrongly-in-update_cpumask.patch
+af_packet-fix-data-race-in-packet_setsockopt-packet_setsockopt.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
