CVE-2025-38464

In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_conn_close(). syzbot reported a null-ptr-deref in tipc_conn_close() during netns dismantle. [0] tipc_topsrv_stop() iterates tipc_net(net)->topsrv->conn_idr and calls tipc_conn_close() for each tipc_conn. The problem is that tipc_conn_close() is called after releasing the IDR lock. At the same time, there might be tipc_conn_recv_work() running and it could call tipc_conn_close() for the same tipc_conn and release its last ->kref. Once we release the IDR lock in tipc_topsrv_stop(), there is no guarantee that the tipc_conn is alive. Let's hold the ref before releasing the lock and put the ref after tipc_conn_close() in tipc_topsrv_stop(). [0]: BUG: KASAN: use-after-free in tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 Read of size 8 at addr ffff888099305a08 by task kworker/u4:3/435 CPU: 0 PID: 435 Comm: kworker/u4:3 Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_load8_noabort+0x88/0x90 mm/kasan/report.c:433 tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 tipc_topsrv_stop net/tipc/topsrv.c:701 [inline] tipc_topsrv_exit_net+0x27b/0x5c0 net/tipc/topsrv.c:722 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Allocated by task 23: kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] tipc_conn_alloc+0x43/0x4f0 net/tipc/topsrv.c:192 tipc_topsrv_accept+0x1b5/0x280 net/tipc/topsrv.c:470 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Freed by task 23: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 tipc_conn_kref_release net/tipc/topsrv.c:150 [inline] kref_put include/linux/kref.h:70 [inline] conn_put+0x2cd/0x3a0 net/tipc/topsrv.c:155 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 The buggy address belongs to the object at ffff888099305a00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of 512-byte region [ffff888099305a00, ffff888099305c00) The buggy address belongs to the page: page:ffffea000264c140 count:1 mapcount:0 mapping:ffff88813bff0940 index:0x0 flags: 0xfff00000000100(slab) raw: 00fff00000000100 ffffea00028b6b88 ffffea0002cd2b08 ffff88813bff0940 raw: 0000000000000000 ffff888099305000 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888099305900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888099305a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888099305a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

mac802154: check local interfaces before deleting sdata list

syzkaller reported a corrupted list in ieee802154_if_remove. [1]

Remove an IEEE 802.15.4 network interface after unregister an IEEE 802.15.4 hardware device from the system.

CPU0 CPU1 ==== ==== genl_family_rcv_msg_doit ieee802154_unregister_hw ieee802154_del_iface ieee802154_remove_interfaces rdev_del_virtual_intf_deprecated list_del(&sdata->list) ieee802154_if_remove list_del_rcu

The net device has been unregistered, since the rcu grace period, unregistration must be run before ieee802154_if_remove.

To avoid this issue, add a check for local->interfaces before deleting sdata list.

[1] kernel BUG at lib/list_debug.c:58! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 6277 Comm: syz-executor157 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56 Code: e8 a1 7e 00 07 90 0f 0b 48 c7 c7 e0 37 60 8c 4c 89 fe e8 8f 7e 00 07 90 0f 0b 48 c7 c7 40 38 60 8c 4c 89 fe e8 7d 7e 00 07 90 <0f> 0b 48 c7 c7 a0 38 60 8c 4c 89 fe e8 6b 7e 00 07 90 0f 0b 48 c7 RSP: 0018:ffffc9000490f3d0 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: d211eee56bb28d00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88805b278dd8 R08: ffffffff8174a12c R09: 1ffffffff2852f0d R10: dffffc0000000000 R11: fffffbfff2852f0e R12: dffffc0000000000 R13: dffffc0000000000 R14: dead000000000100 R15: ffff88805b278cc0 FS: 0000555572f94380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056262e4a3000 CR3: 0000000078496000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_rcu include/linux/rculist.h:157 [inline] ieee802154_if_remove+0x86/0x1e0 net/mac802154/iface.c:687 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline] ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:744 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607 ___sys_sendmsg net/socket.c:2661 [inline] __sys_sendmsg+0x292/0x380 net/socket.c:2690 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-57948)

In the Linux kernel, the following vulnerability has been resolved:

KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop

Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpu_run() loop to fix a bug where KVM can load hardware with a stale vcpu->arch.dr6.

When the guest accesses a DR and host userspace isn't debugging the guest, KVM disables DR interception and loads the guest's values into hardware on VM-Enter and saves them on VM-Exit. This allows the guest to access DRs at will, e.g. so that a sequence of DR accesses to configure a breakpoint only generates one VM-Exit.

For DR0-DR3,…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

mac802154: check local interfaces before deleting sdata list

syzkaller reported a corrupted list in ieee802154_if_remove. [1]

Remove an IEEE 802.15.4 network interface after unregister an IEEE 802.15.4 hardware device from the system.

CPU0 CPU1 ==== ==== genl_family_rcv_msg_doit ieee802154_unregister_hw ieee802154_del_iface ieee802154_remove_interfaces rdev_del_virtual_intf_deprecated list_del(&sdata->list) ieee802154_if_remove list_del_rcu

The net device has been unregistered, since the rcu grace period, unregistration must be run before ieee802154_if_remove.

To avoid this issue, add a check for local->interfaces before deleting sdata list.

[1] kernel BUG at lib/list_debug.c:58! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 6277 Comm: syz-executor157 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56 Code: e8 a1 7e 00 07 90 0f 0b 48 c7 c7 e0 37 60 8c 4c 89 fe e8 8f 7e 00 07 90 0f 0b 48 c7 c7 40 38 60 8c 4c 89 fe e8 7d 7e 00 07 90 <0f> 0b 48 c7 c7 a0 38 60 8c 4c 89 fe e8 6b 7e 00 07 90 0f 0b 48 c7 RSP: 0018:ffffc9000490f3d0 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: d211eee56bb28d00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88805b278dd8 R08: ffffffff8174a12c R09: 1ffffffff2852f0d R10: dffffc0000000000 R11: fffffbfff2852f0e R12: dffffc0000000000 R13: dffffc0000000000 R14: dead000000000100 R15: ffff88805b278cc0 FS: 0000555572f94380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056262e4a3000 CR3: 0000000078496000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_rcu include/linux/rculist.h:157 [inline] ieee802154_if_remove+0x86/0x1e0 net/mac802154/iface.c:687 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline] ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:744 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607 ___sys_sendmsg net/socket.c:2661 [inline] __sys_sendmsg+0x292/0x380 net/socket.c:2690 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-57948)

In the Linux kernel, the following vulnerability has been resolved:

KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop

Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpu_run() loop to fix a bug where KVM can load hardware with a stale vcpu->arch.dr6.

When the guest accesses a DR and host userspace isn't debugging the guest, KVM disables DR interception and loads the guest's values into hardware on VM-Enter and saves them on VM-Exit. This allows the guest to access DRs at will, e.g. so that a sequence of DR accesses to configure a breakpoint only generates one VM-Exit.

For DR0-DR3,…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

mac802154: check local interfaces before deleting sdata list

syzkaller reported a corrupted list in ieee802154_if_remove. [1]

Remove an IEEE 802.15.4 network interface after unregister an IEEE 802.15.4 hardware device from the system.

CPU0 CPU1 ==== ==== genl_family_rcv_msg_doit ieee802154_unregister_hw ieee802154_del_iface ieee802154_remove_interfaces rdev_del_virtual_intf_deprecated list_del(&sdata->list) ieee802154_if_remove list_del_rcu

The net device has been unregistered, since the rcu grace period, unregistration must be run before ieee802154_if_remove.

To avoid this issue, add a check for local->interfaces before deleting sdata list.

[1] kernel BUG at lib/list_debug.c:58! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 6277 Comm: syz-executor157 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56 Code: e8 a1 7e 00 07 90 0f 0b 48 c7 c7 e0 37 60 8c 4c 89 fe e8 8f 7e 00 07 90 0f 0b 48 c7 c7 40 38 60 8c 4c 89 fe e8 7d 7e 00 07 90 <0f> 0b 48 c7 c7 a0 38 60 8c 4c 89 fe e8 6b 7e 00 07 90 0f 0b 48 c7 RSP: 0018:ffffc9000490f3d0 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: d211eee56bb28d00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88805b278dd8 R08: ffffffff8174a12c R09: 1ffffffff2852f0d R10: dffffc0000000000 R11: fffffbfff2852f0e R12: dffffc0000000000 R13: dffffc0000000000 R14: dead000000000100 R15: ffff88805b278cc0 FS: 0000555572f94380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056262e4a3000 CR3: 0000000078496000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_rcu include/linux/rculist.h:157 [inline] ieee802154_if_remove+0x86/0x1e0 net/mac802154/iface.c:687 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline] ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:744 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607 ___sys_sendmsg net/socket.c:2661 [inline] __sys_sendmsg+0x292/0x380 net/socket.c:2690 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2024-57948)

In the Linux kernel, the following vulnerability has been resolved:

KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop

Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpu_run() loop to fix a bug where KVM can load hardware with a stale vcpu->arch.dr6.

When the guest accesses a DR and host userspace isn't debugging the guest, KVM disables DR interception and loads the guest's values into hardware on VM-Enter and saves them on VM-Exit. This allows the guest to access DRs at will, e.g. so that a sequence of DR accesses to configure a breakpoint only generates one VM-Exit.

For DR0-DR3,…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx

blk_mq_run_hw_queues() could be run when there isn't queued request and after queue is cleaned up, at that time tagset is freed, because tagset lifetime is covered by driver, and often freed after blk_cleanup_queue() returns.

So don't touch ->tagset for figuring out current default hctx by the mapping built in request queue, so use-after-free on tagset can be avoided. Meantime this way should be fast than retrieving mapping from tagset.(CVE-2022-49377)

In the Linux kernel, the following vulnerability has been resolved:

macsec: fix UAF bug for real_dev

Create a new macsec device but not get reference to real_dev. That can not ensure that real_dev is freed after macsec. That will trigger the UAF bug for real_dev as following:

================================================================== BUG: KASAN: use-after-free in macsec_get_iflink+0x5f/0x70 drivers/net/macsec.c:3662 Call Trace: ... macsec_get_iflink+0x5f/0x70 drivers/net/macsec.c:3662 dev_get_iflink+0x73/0xe0 net/core/dev.c:637 default_operstate net/core/link_watch.c:42 [inline] rfc2863_policy+0x233/0x2d0 net/core/link_watch.c:54 linkwatch_do_dev+0x2a/0x150 net/core/link_watch.c:161

Allocated by task 22209: ... alloc_netdev_mqs+0x98/0x1100 net/core/dev.c:10549 rtnl_create_link+0x9d7/0xc00 net/core/rtnetlink.c:3235 veth_newlink+0x20e/0xa90 drivers/net/veth.c:1748

Freed by task 8: ... kfree+0xd6/0x4d0 mm/slub.c:4552 kvfree+0x42/0x50 mm/util.c:615 device_release+0x9f/0x240 drivers/base/core.c:2229 kobject_cleanup lib/kobject.c:673 [inline] kobject_release lib/kobject.c:704 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1c8/0x540 lib/kobject.c:721 netdev_run_todo+0x72e/0x10b0 net/core/dev.c:10327

After commit faab39f63c1f ("net: allow out-of-order netdev unregistration") and commit e5f80fcf869a ("ipv6: give an IPv6 dev to blackhole_netdev"), we can add dev_hold_track() in macsec_dev_init() and dev_put_track() in macsec_free_netdev() to fix the problem.(CVE-2022-49390)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: don't skip expired elements during walk

There is an asymmetry between commit/abort and preparation phase if the following conditions are met:

1. set is a verdict map ("1.2.3.4 : jump foo")
2. timeouts are enabled

In this case, following sequence is problematic:

1. element E in set S refers to chain C
2. userspace requests removal of set S
3. kernel does a set walk to decrement chain->use count for all elements from preparation phase
4. kernel does another set walk to remove elements from the commit phase (or another walk to do a chain->use increment for all elements from abort phase)

If E has already expired in 1), it will be ignored during list walk, so its use count won't have been changed.

Then, when set is culled, ->destroy callback will zap the element via nf_tables_set_elem_destroy(), but this function is only safe for elements that have been deactivated earlier from the preparation phase: lack of earlier deactivate removes the element but leaks the chain use count, which results in a WARN splat when the chain gets removed later, plus a leak of the nft_chain structure.

Update pipapo_get() not to skip expired elements, otherwise flush command reports bogus ENOENT errors.(CVE-2023-52924)

In the Linux kernel, the following vulnerability has been resolved:

powerpc/mm/fault: Fix kfence page fault reporting

copy_from_kernel_nofault() can be called when doing read of /proc/kcore. /proc/kcore can have some unmapped kfence objects which when read via copy_from_kernel_nofault() can cause page faults. Since *_nofault() functions define their own fixup table for handling fault, use that instead of…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx

blk_mq_run_hw_queues() could be run when there isn't queued request and after queue is cleaned up, at that time tagset is freed, because tagset lifetime is covered by driver, and often freed after blk_cleanup_queue() returns.

So don't touch ->tagset for figuring out current default hctx by the mapping built in request queue, so use-after-free on tagset can be avoided. Meantime this way should be fast than retrieving mapping from tagset.(CVE-2022-49377)

In the Linux kernel, the following vulnerability has been resolved:

macsec: fix UAF bug for real_dev

Create a new macsec device but not get reference to real_dev. That can not ensure that real_dev is freed after macsec. That will trigger the UAF bug for real_dev as following:

================================================================== BUG: KASAN: use-after-free in macsec_get_iflink+0x5f/0x70 drivers/net/macsec.c:3662 Call Trace: ... macsec_get_iflink+0x5f/0x70 drivers/net/macsec.c:3662 dev_get_iflink+0x73/0xe0 net/core/dev.c:637 default_operstate net/core/link_watch.c:42 [inline] rfc2863_policy+0x233/0x2d0 net/core/link_watch.c:54 linkwatch_do_dev+0x2a/0x150 net/core/link_watch.c:161

Allocated by task 22209: ... alloc_netdev_mqs+0x98/0x1100 net/core/dev.c:10549 rtnl_create_link+0x9d7/0xc00 net/core/rtnetlink.c:3235 veth_newlink+0x20e/0xa90 drivers/net/veth.c:1748

Freed by task 8: ... kfree+0xd6/0x4d0 mm/slub.c:4552 kvfree+0x42/0x50 mm/util.c:615 device_release+0x9f/0x240 drivers/base/core.c:2229 kobject_cleanup lib/kobject.c:673 [inline] kobject_release lib/kobject.c:704 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1c8/0x540 lib/kobject.c:721 netdev_run_todo+0x72e/0x10b0 net/core/dev.c:10327

After commit faab39f63c1f ("net: allow out-of-order netdev unregistration") and commit e5f80fcf869a ("ipv6: give an IPv6 dev to blackhole_netdev"), we can add dev_hold_track() in macsec_dev_init() and dev_put_track() in macsec_free_netdev() to fix the problem.(CVE-2022-49390)

In the Linux kernel, the following vulnerability has been resolved:

powerpc/mm/fault: Fix kfence page fault reporting

copy_from_kernel_nofault() can be called when doing read of /proc/kcore. /proc/kcore can have some unmapped kfence objects which when read via copy_from_kernel_nofault() can cause page faults. Since *_nofault() functions define their own fixup table for handling fault, use that instead of asking kfence to handle such faults.

Hence we search the exception tables for the nip which generated the fault. If there is an entry then we let the fixup table handler handle the page fault by returning an error from within ___do_page_fault().

This can be easily triggered if someone tries to do dd from /proc/kcore. eg. dd if=/proc/kcore of=/dev/null bs=1M

Some example false negatives:

=============================== BUG: KFENCE: invalid read in copy_from_kernel_nofault+0x9c/0x1a0 Invalid read at 0xc0000000fdff0000: copy_from_kernel_nofault+0x9c/0x1a0 0xc00000000665f950 read_kcore_iter+0x57c/0xa04 proc_reg_read_iter+0xe4/0x16c vfs_read+0x320/0x3ec ksys_read+0x90/0x154 system_call_exception+0x120/0x310 system_call_vectored_common+0x15c/0x2ec

BUG: KFENCE: use-after-free read in copy_from_kernel_nofault+0x9c/0x1a0 Use-after-free read at 0xc0000000fe050000 (in kfence-#2): copy_from_kernel_nofault+0x9c/0x1a0 0xc00000000665f950 read_kcore_iter+0x57c/0xa04 proc_reg_read_iter+0xe4/0x16c vfs_read+0x320/0x3ec ksys_read+0x90/0x154 system_call_exception+0x120/0x310 system_call_vectored_common+0x15c/0x2ec(CVE-2024-56678)

In the Linux kernel, the following vulnerability has been resolved:

nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur

The action force…

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: udp: Fix memory accounting leak. (CVE-2025-22058)

• kernel: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (CVE-2025-37823)

• kernel: ext4: only dirty folios when data journaling regular files (CVE-2025-38220)

• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)

• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)

• kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)

• kernel: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (CVE-2025-38472)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)

• kernel: scsi: lpfc: Use memcpy() for BIOS version (CVE-2025-38332)

• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)

• kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)

• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (CVE-2025-37823)

• kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw (CVE-2025-38200)

• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)

• kernel: net/sched: Always pass notifications when child class becomes empty (CVE-2025-38350)

• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)

• kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)

• kernel: xfrm: interface: fix use-after-free after changing collect_md xfrm interface (CVE-2025-38500)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Root has patched CVE-2025-38464 in the linux package for Root:Debian:11. Multiple fixed versions available.

Root has patched CVE-2025-38464 in the linux package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2025-38464 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.

Root has patched CVE-2025-38464 in the linux package for Root:Ubuntu:24.04. Multiple fixed versions available.

In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_conn_close(). syzbot reported a null-ptr-deref in tipc_conn_close() during netns dismantle. [0] tipc_topsrv_stop() iterates tipc_net(net)->topsrv->conn_idr and calls tipc_conn_close() for each tipc_conn. The problem is that tipc_conn_close() is called after releasing the IDR lock. At the same time, there might be tipc_conn_recv_work() running and it could call tipc_conn_close() for the same tipc_conn and release its last ->kref. Once we release the IDR lock in tipc_topsrv_stop(), there is no guarantee that the tipc_conn is alive. Let's hold the ref before releasing the lock and put the ref after tipc_conn_close() in tipc_topsrv_stop(). [0]: BUG: KASAN: use-after-free in tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 Read of size 8 at addr ffff888099305a08 by task kworker/u4:3/435 CPU: 0 PID: 435 Comm: kworker/u4:3 Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_load8_noabort+0x88/0x90 mm/kasan/report.c:433 tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 tipc_topsrv_stop net/tipc/topsrv.c:701 [inline] tipc_topsrv_exit_net+0x27b/0x5c0 net/tipc/topsrv.c:722 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Allocated by task 23: kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] tipc_conn_alloc+0x43/0x4f0 net/tipc/topsrv.c:192 tipc_topsrv_accept+0x1b5/0x280 net/tipc/topsrv.c:470 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Freed by task 23: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 tipc_conn_kref_release net/tipc/topsrv.c:150 [inline] kref_put include/linux/kref.h:70 [inline] conn_put+0x2cd/0x3a0 net/tipc/topsrv.c:155 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 The buggy address belongs to the object at ffff888099305a00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of 512-byte region [ffff888099305a00, ffff888099305c00) The buggy address belongs to the page: page:ffffea000264c140 count:1 mapcount:0 mapping:ffff88813bff0940 index:0x0 flags: 0xfff00000000100(slab) raw: 00fff00000000100 ffffea00028b6b88 ffffea0002cd2b08 ffff88813bff0940 raw: 0000000000000000 ffff888099305000 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888099305900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888099305a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888099305a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: udp: Fix memory accounting leak. (CVE-2025-22058)
• kernel: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (CVE-2025-37823)
• kernel: ext4: only dirty folios when data journaling regular files (CVE-2025-38220)
• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)
• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)
• kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)
• kernel: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (CVE-2025-38472)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)
• kernel: scsi: lpfc: Use memcpy() for BIOS version (CVE-2025-38332)
• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)
• kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)
• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (CVE-2025-37823)
• kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw (CVE-2025-38200)
• kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)
• kernel: net/sched: Always pass notifications when child class becomes empty (CVE-2025-38350)
• kernel: tipc: Fix use-after-free in tipc_conn_close() (CVE-2025-38464)
• kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)
• kernel: xfrm: interface: fix use-after-free after changing collect_md xfrm interface (CVE-2025-38500)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In the Linux kernel, the following vulnerability has been resolved:

tipc: Fix use-after-free in tipc_conn_close().

syzbot reported a null-ptr-deref in tipc_conn_close() during netns dismantle. [0]

tipc_topsrv_stop() iterates tipc_net(net)->topsrv->conn_idr and calls tipc_conn_close() for each tipc_conn.

The problem is that tipc_conn_close() is called after releasing the IDR lock.

At the same time, there might be tipc_conn_recv_work() running and it could call tipc_conn_close() for the same tipc_conn and release its last ->kref.

Once we release the IDR lock in tipc_topsrv_stop(), there is no guarantee that the tipc_conn is alive.

Let's hold the ref before releasing the lock and put the ref after tipc_conn_close() in tipc_topsrv_stop().

[0]: BUG: KASAN: use-after-free in tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 Read of size 8 at addr ffff888099305a08 by task kworker/u4:3/435

CPU: 0 PID: 435 Comm: kworker/u4:3 Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_load8_noabort+0x88/0x90 mm/kasan/report.c:433 tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 tipc_topsrv_stop net/tipc/topsrv.c:701 [inline] tipc_topsrv_exit_net+0x27b/0x5c0 net/tipc/topsrv.c:722 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Allocated by task 23: kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] tipc_conn_alloc+0x43/0x4f0 net/tipc/topsrv.c:192 tipc_topsrv_accept+0x1b5/0x280 net/tipc/topsrv.c:470 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Freed by task 23: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 tipc_conn_kref_release net/tipc/topsrv.c:150 [inline] kref_put include/linux/kref.h:70 [inline] conn_put+0x2cd/0x3a0 net/tipc/topsrv.c:155 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

The buggy address belongs to the object at ffff888099305a00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of 512-byte region [ffff888099305a00, ffff888099305c00) The buggy address belongs to the page: page:ffffea000264c140 count:1 mapcount:0 mapping:ffff88813bff0940 index:0x0 flags: 0xfff00000000100(slab) raw: 00fff00000000100 ffffea00028b6b88 ffffea0002cd2b08 ffff88813bff0940 raw: 0000000000000000 ffff888099305000 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected

Memory state around the buggy address: ffff888099305900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc

ffff888099305a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888099305a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

In the Linux kernel, the following vulnerability has been resolved:

tipc: Fix use-after-free in tipc_conn_close().

syzbot reported a null-ptr-deref in tipc_conn_close() during netns dismantle. [0]

tipc_topsrv_stop() iterates tipc_net(net)->topsrv->conn_idr and calls tipc_conn_close() for each tipc_conn.

The problem is that tipc_conn_close() is called after releasing the IDR lock.

At the same time, there might be tipc_conn_recv_work() running and it could call tipc_conn_close() for the same tipc_conn and release its last ->kref.

Once we release the IDR lock in tipc_topsrv_stop(), there is no guarantee that the tipc_conn is alive.

Let's hold the ref before releasing the lock and put the ref after tipc_conn_close() in tipc_topsrv_stop().

[0]: BUG: KASAN: use-after-free in tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 Read of size 8 at addr ffff888099305a08 by task kworker/u4:3/435

CPU: 0 PID: 435 Comm: kworker/u4:3 Not tainted 4.19.204-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_load8_noabort+0x88/0x90 mm/kasan/report.c:433 tipc_conn_close+0x122/0x140 net/tipc/topsrv.c:165 tipc_topsrv_stop net/tipc/topsrv.c:701 [inline] tipc_topsrv_exit_net+0x27b/0x5c0 net/tipc/topsrv.c:722 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Allocated by task 23: kmem_cache_alloc_trace+0x12f/0x380 mm/slab.c:3625 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] tipc_conn_alloc+0x43/0x4f0 net/tipc/topsrv.c:192 tipc_topsrv_accept+0x1b5/0x280 net/tipc/topsrv.c:470 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Freed by task 23: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 tipc_conn_kref_release net/tipc/topsrv.c:150 [inline] kref_put include/linux/kref.h:70 [inline] conn_put+0x2cd/0x3a0 net/tipc/topsrv.c:155 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

The buggy address belongs to the object at ffff888099305a00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of 512-byte region [ffff888099305a00, ffff888099305c00) The buggy address belongs to the page: page:ffffea000264c140 count:1 mapcount:0 mapping:ffff88813bff0940 index:0x0 flags: 0xfff00000000100(slab) raw: 00fff00000000100 ffffea00028b6b88 ffffea0002cd2b08 ffff88813bff0940 raw: 0000000000000000 ffff888099305000 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected

Memory state around the buggy address: ffff888099305900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc

ffff888099305a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888099305a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888099305b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

• mm/hugetlb: unshare page tables during VMA split, not before {CVE-2025-38084}
• hugetlb: unshare some PMDs when splitting VMAs {CVE-2025-38084}
• posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() {CVE-2025-38352}
• tipc: Fix use-after-free in tipc_conn_close(). {CVE-2025-38464}
• vsock: Fix transport_* TOCTOU {CVE-2025-38461}
• RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction {CVE-2025-38211}
• i40e: fix MMIO write access to an invalid page in i40e_clear_hw {CVE-2025-38200}
• net_sched: ets: Fix double list add in class with netem as child qdisc {CVE-2025-37914}
• net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too {CVE-2025-37823}
• udp: Fix memory accounting leak. {CVE-2025-22058}
• net/sched: Always pass notifications when child class becomes empty {CVE-2025-38350}
• codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() {CVE-2025-38177}
• sch_htb: make htb_deactivate() idempotent {CVE-2025-38177}
• sch_drr: make drr_qlen_notify() idempotent {CVE-2025-38177}
• sch_htb: make htb_qlen_notify() idempotent {CVE-2025-38177}
• sch_qfq: make qfq_qlen_notify() idempotent {CVE-2025-38177}
• sch_ets: make est_qlen_notify() idempotent {CVE-2025-38177}
• sch_hfsc: make hfsc_qlen_notify() idempotent {CVE-2025-38177}
• sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() {CVE-2025-38000}
• net: fix udp gso skb_segment after pull from frag_list {CVE-2025-38124}

• posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() {CVE-2025-38352}
• xfrm: state: fix out-of-bounds read during lookup {CVE-2024-57982}
• nfsd: fix race between laundromat and free_stateid {CVE-2024-50106}
• nfsd: split sc_status out of sc_type {CVE-2024-50106}
• nfsd: avoid race after unhash_delegation_locked() {CVE-2024-50106}
• nfsd: don't call functions with side-effecting inside WARN_ON() {CVE-2024-50106}
• can: peak_usb: fix use after free bugs {CVE-2021-47670}
• wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds {CVE-2025-38159}
• i2c/designware: Fix an initialization issue {CVE-2025-38380}
• RDMA/rxe: Fix error unwind in rxe_create_qp() {CVE-2022-50127}
• i40e: fix MMIO write access to an invalid page in i40e_clear_hw {CVE-2025-38200}
• udp: Fix memory accounting leak. {CVE-2025-22058}
• Bluetooth: hci_core: Fix use-after-free in vhci_flush() {CVE-2025-38250}
• net_sched: ets: Fix double list add in class with netem as child qdisc {CVE-2025-38085}
• mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race {CVE-2025-38085}
• mm/khugepaged: fix GUP-fast interaction by sending IPI {CVE-2025-38085}
• padata: fix UAF in padata_reorder {CVE-2025-21727}
• net/sched: Always pass notifications when child class becomes empty {CVE-2025-38350}
• codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() {CVE-2025-38177}
• sch_ets: make est_qlen_notify() idempotent {CVE-2025-38177}
• sch_qfq: make qfq_qlen_notify() idempotent {CVE-2025-38177}
• sch_hfsc: make hfsc_qlen_notify() idempotent {CVE-2025-38177}
• sch_drr: make drr_qlen_notify() idempotent {CVE-2025-38177}
• sch_htb: make htb_qlen_notify() idempotent {CVE-2025-38177}
• sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() {CVE-2025-38000}
• net/sched: sch_qfq: Fix race condition on qfq_aggregate {CVE-2025-38477}
• tipc: Fix use-after-free in tipc_conn_close(). {CVE-2025-38464}
• RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction {CVE-2025-38211}
• scsi: lpfc: Use memcpy() for BIOS version {CVE-2025-38332}
• netfilter: xtables: avoid NFPROTO_UNSPEC where needed {CVE-2024-50038}
• netfilter: xtables: Add snapshot of hardidletimer target {CVE-2024-50038}
• crypto: algif_hash - fix double free in hash_accept {CVE-2025-38079}
• ext4: avoid resizing to a partial cluster size {CVE-2022-50020}
• net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc {CVE-2025-37890}
• net: tipc: fix refcount warning in tipc_aead_encrypt {CVE-2025-38273}
• net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done {CVE-2025-38052}
• memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove {CVE-2025-22020}

• inet: fully convert sk->sk_rx_dst to RCU rules {CVE-2021-47103}
• ALSA: usb-audio: Fix out of bounds reads when finding clock sources {CVE-2024-53150}
• posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() {CVE-2025-38352}
• can: peak_usb: fix use after free bugs {CVE-2021-47670}
• wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds {CVE-2025-38159}
• RDMA/rxe: Fix error unwind in rxe_create_qp() {CVE-2022-50127}
• i40e: fix MMIO write access to an invalid page in i40e_clear_hw {CVE-2025-38200}
• udp: Fix memory accounting leak. {CVE-2025-22058}
• ALSA: bcd2000: Fix a UAF bug on the error path of probing {CVE-2022-50083}
• ext4: correct the misjudgment in ext4_iget_extra_inode {CVE-2022-50083}
• ext4: correct max_inline_xattr_value_size computing {CVE-2022-50083}
• ext4: fix use-after-free in ext4_xattr_set_entry {CVE-2022-50083}
• ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h {CVE-2022-50083}
• Bluetooth: hci_core: Fix use-after-free in vhci_flush() {CVE-2025-38250}
• net_sched: ets: Fix double list add in class with netem as child qdisc {CVE-2025-38085}
• mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race {CVE-2025-38085}
• padata: fix UAF in padata_reorder {CVE-2025-21727}
• net/sched: Always pass notifications when child class becomes empty {CVE-2025-38350}
• codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() {CVE-2025-38177}
• sch_ets: make est_qlen_notify() idempotent {CVE-2025-38177}
• sch_qfq: make qfq_qlen_notify() idempotent {CVE-2025-38177}
• sch_hfsc: make hfsc_qlen_notify() idempotent {CVE-2025-38177}
• sch_drr: make drr_qlen_notify() idempotent {CVE-2025-38177}
• sch_htb: make htb_qlen_notify() idempotent {CVE-2025-38177}
• sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() {CVE-2025-38000}
• mptcp: do not queue data on closed subflows {CVE-2022-50070}
• mptcp: export mptcp_subflow_active {CVE-2022-50070}
• net/sched: sch_qfq: Fix race condition on qfq_aggregate {CVE-2025-38477}
• tipc: Fix use-after-free in tipc_conn_close(). {CVE-2025-38464}
• RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction {CVE-2025-38211}
• scsi: lpfc: Use memcpy() for BIOS version {CVE-2025-38332}
• crypto: algif_hash - fix double free in hash_accept {CVE-2025-38079}
• net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc {CVE-2025-37890}
• ext4: avoid resizing to a partial cluster size {CVE-2022-50020}
• net: tipc: fix refcount warning in tipc_aead_encrypt {CVE-2025-38273}
• ice: xsk: prohibit usage of non-balanced queue id {CVE-2022-50003}
• net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done {CVE-2025-38052}
• virtio-gpu: fix a missing check to avoid NULL dereference {CVE-2022-50181}
• usb: xhci_plat_remove: avoid NULL dereference {CVE-2022-50133}
• ASoC: SOF: Intel: hda-ipc: Do not process IPC reply before firmware boot {CVE-2022-50015}
• netfilter: nft_tproxy: restrict to prerouting hook {CVE-2022-50001}
• scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq {CVE-2022-49986}
• ath11k: fix netdev open race {CVE-2022-50187}

• inet: fully convert sk->sk_rx_dst to RCU rules {CVE-2021-47103}
• ALSA: usb-audio: Fix out of bounds reads when finding clock sources {CVE-2024-53150}
• posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() {CVE-2025-38352}
• can: peak_usb: fix use after free bugs {CVE-2021-47670}
• wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds {CVE-2025-38159}
• RDMA/rxe: Fix error unwind in rxe_create_qp() {CVE-2022-50127}
• i40e: fix MMIO write access to an invalid page in i40e_clear_hw {CVE-2025-38200}
• udp: Fix memory accounting leak. {CVE-2025-22058}
• ALSA: bcd2000: Fix a UAF bug on the error path of probing {CVE-2022-50083}
• ext4: correct the misjudgment in ext4_iget_extra_inode {CVE-2022-50083}
• ext4: correct max_inline_xattr_value_size computing {CVE-2022-50083}
• ext4: fix use-after-free in ext4_xattr_set_entry {CVE-2022-50083}
• ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h {CVE-2022-50083}
• Bluetooth: hci_core: Fix use-after-free in vhci_flush() {CVE-2025-38250}
• net_sched: ets: Fix double list add in class with netem as child qdisc {CVE-2025-38085}
• mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race {CVE-2025-38085}
• padata: fix UAF in padata_reorder {CVE-2025-21727}
• net/sched: Always pass notifications when child class becomes empty {CVE-2025-38350}
• codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() {CVE-2025-38177}
• sch_ets: make est_qlen_notify() idempotent {CVE-2025-38177}
• sch_qfq: make qfq_qlen_notify() idempotent {CVE-2025-38177}
• sch_hfsc: make hfsc_qlen_notify() idempotent {CVE-2025-38177}
• sch_drr: make drr_qlen_notify() idempotent {CVE-2025-38177}
• sch_htb: make htb_qlen_notify() idempotent {CVE-2025-38177}
• sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() {CVE-2025-38000}
• mptcp: do not queue data on closed subflows {CVE-2022-50070}
• mptcp: export mptcp_subflow_active {CVE-2022-50070}
• net/sched: sch_qfq: Fix race condition on qfq_aggregate {CVE-2025-38477}
• tipc: Fix use-after-free in tipc_conn_close(). {CVE-2025-38464}
• RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction {CVE-2025-38211}
• scsi: lpfc: Use memcpy() for BIOS version {CVE-2025-38332}
• crypto: algif_hash - fix double free in hash_accept {CVE-2025-38079}
• ext4: avoid resizing to a partial cluster size {CVE-2022-50020}
• net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc {CVE-2025-37890}
• net: tipc: fix refcount warning in tipc_aead_encrypt {CVE-2025-38273}
• ice: xsk: prohibit usage of non-balanced queue id {CVE-2022-50003}
• net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done {CVE-2025-38052}
• virtio-gpu: fix a missing check to avoid NULL dereference {CVE-2022-50181}
• usb: xhci_plat_remove: avoid NULL dereference {CVE-2022-50133}
• ASoC: SOF: Intel: hda-ipc: Do not process IPC reply before firmware boot {CVE-2022-50015}
• netfilter: nft_tproxy: restrict to prerouting hook {CVE-2022-50001}
• scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq {CVE-2022-49986}
• ath11k: fix netdev open race {CVE-2022-50187}

• drm/amd/display: Skip on writeback when it's not applicable {CVE-2024-36914}
• ASoC: topology: Fix references to freed memory {CVE-2024-41069}
• Bluetooth: RFCOMM: Fix not validating setsockopt user input {CVE-2024-35966}
• Bluetooth: SCO: Fix not validating setsockopt user input
• drm/dp_mst: Fix MST sideband message body length check {CVE-2024-56616}
• xfs: don't walk off the end of a directory data block {CVE-2024-41013}
• wifi: cfg80211: check A-MSDU format more carefully {CVE-2024-35937}
• Reapply "wifi: mac80211: Update skb's control block key in ieee80211_tx_dequeue()"
• net/rds: Fix rs_recv_pending counting issue
• LTS tag: v5.4.301
• net: rtnetlink: fix module reference count leak issue in rtnetlink_rcv_msg
• media: s5p-mfc: remove an unused/uninitialized variable
• NFSD: Fix last write offset handling in layoutcommit
• NFSD: Minor cleanup in layoutcommit processing
• padata: Reset next CPU when reorder sequence wraps around
• KEYS: trusted_tpm1: Compare HMAC values in constant time
• NFSD: Define a proc_layoutcommit for the FlexFiles layout type {CVE-2025-40087}
• vfs: Don't leak disconnected dentries on umount {CVE-2025-40105}
• jbd2: ensure that all ongoing I/O complete before freeing blocks
• ext4: detect invalid INLINE_DATA + EXTENTS flag combination {CVE-2025-40167}
• drm/amdgpu: use atomic functions with memory barriers for vm fault info
• ext4: avoid potential buffer over-read in parse_apply_sb_mount_options() {CVE-2025-40198}
• spi: cadence-quadspi: Flush posted register writes before DAC access
• spi: cadence-quadspi: Flush posted register writes before INDAC access
• memory: samsung: exynos-srom: Fix of_iomap leak in exynos_srom_probe
• memory: samsung: exynos-srom: Correct alignment
• arm64: errata: Apply workarounds for Neoverse-V3AE
• arm64: cputype: Add Neoverse-V3AE definitions
• comedi: fix divide-by-zero in comedi_buf_munge() {CVE-2025-40106}
• binder: remove "invalid inc weak" check
• xhci: dbc: enable back DbC in resume if it was enabled before suspend
• usb/core/quirks: Add Huawei ME906S to wakeup quirk
• USB: serial: option: add Telit FN920C04 ECM compositions
• USB: serial: option: add Quectel RG255C
• USB: serial: option: add UNISOC UIS7720
• net: ravb: Ensure memory write completes before ringing TX doorbell
• net: usb: rtl8150: Fix frame padding
• ocfs2: clear extent cache after moving/defragmenting extents
• MIPS: Malta: Fix keyboard resource preventing i8042 driver from registering
• Revert "cpuidle: menu: Avoid discarding useful information"
• net: bonding: fix possible peer notify event loss or dup issue
• sctp: avoid NULL dereference when chunk data buffer is missing
• arm64, mm: avoid always making PTE dirty in pte_mkwrite()
• net: enetc: correct the value of ENETC_RXB_TRUESIZE
• rtnetlink: Allow deleting FDB entries in user namespace
• net: rtnetlink: add NLM_F_BULK support to rtnl_fdb_del
• net: add ndo_fdb_del_bulk
• net: rtnetlink: add bulk delete support flag
• net: netlink: add NLM_F_BULK delete request modifier
• net: rtnetlink: use BIT for flag values
• net: rtnetlink: add helper to extract msg type's kind
• net: rtnetlink: add msg kind names
• net: rtnetlink: remove redundant assignment to variable err
• m68k: bitops: Fix find_*_bit() signatures
• hfsplus: return EIO when type of hidden directory mismatch in hfsplus_fill_super()
• hfs: fix KMSAN uninit-value issue in hfs_find_set_zero_bits()
• dlm: check for defined force value in dlm_lockspace_release
• hfsplus: fix KMSAN uninit-value issue in hfsplus_delete_cat()
• hfs: validate record offset in hfsplus_bmap_alloc
• hfsplus: fix KMSAN uninit-value issue in __hfsplus_ext_cache_extent()
• hfs: make proper initalization of struct hfs_find_data
• hfs: clear offset and space out of valid records in b-tree node
• exec: Fix incorrect type for ret
• hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() {CVE-2025-40088}
• ALSA: firewire: amdtp-stream: fix enum kernel-doc warnings
• sched/fair: Fix pelt lost idle time…

• CVE-2025-39683
  • tracing: Remove unneeded goto out logic {CVE-2025-39683}
  • tracing: Limit access to parser->buffer when trace_get_user failed {CVE-2025-39683}
• CVE-2025-38079
  • crypto: algif_hash - fix double free in hash_accept {CVE-2025-38079}
• CVE-2025-38159
  • wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds {CVE-2025-38159}
• CVE-2025-38211
  • RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction {CVE-2025-38211}
• CVE-2025-38024
  • RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug {CVE-2025-38024}
• CVE-2025-38103
  • HID: hyperv: Correctly access fields declared as __le16 {CVE-2025-38103}
  • HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse() {CVE-2025-38103}
• CVE-2025-38157
  • wifi: ath9k_htc: Abort software beacon handling if disabled {CVE-2025-38157}
• CVE-2025-38230
  • jfs: add sanity check for agwidth in dbMount {CVE-2025-38230}
  • fs/jfs: consolidate sanity checking in dbMount {CVE-2025-38230}
  • jfs: validate AG parameters in dbMount() to prevent crashes {CVE-2025-38230}
• CVE-2025-39955
  • tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). {CVE-2025-39955}
• CVE-2025-38680
  • media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format() {CVE-2025-38680}
• CVE-2025-38708
  • drbd: add missing kref_get in handle_write_conflicts {CVE-2025-38708}
• CVE-2025-39759
  • btrfs: qgroup: introduce quota mode {CVE-2025-39759}
  • btrfs: qgroup: fix race between quota disable and quota rescan ioctl {CVE-2025-39759}
• CVE-2025-38666
  • net: appletalk: Fix use-after-free in AARP proxy probe {CVE-2025-38666}
• CVE-2025-40269
  • ALSA: usb-audio: Improve frames size computation {CVE-2025-40269}
  • ALSA: usb-audio: Replace s/frame/packet/ where appropriate {CVE-2025-40269}
  • ALSA: usb-audio: Fix potential overflow of PCM transfer buffer {CVE-2025-40269}
• CVE-2025-40149
  • net: netdevice: Add operation ndo_sk_get_lower_dev {CVE-2025-40149}
  • net/tls: Device offload to use lowest netdevice in chain {CVE-2025-40149}
  • tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). {CVE-2025-40149}
• CVE-2025-71089
  • iommu: disable SVA when CONFIG_X86 is set {CVE-2025-71089}
• CVE-2026-23234
  • f2fs: fix to avoid UAF in f2fs_write_end_io() {CVE-2026-23234}
• CVE-2026-23089
  • ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free() {CVE-2026-23089}
• CVE-2026-23074
  • net/sched: Enforce that teql can only be used as root qdisc {CVE-2026-23074}
• CVE-2026-23061
  • can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak {CVE-2026-23061}
• CVE-2026-23060
  • crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec {CVE-2026-23060}
• CVE-2026-22997
  • net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts {CVE-2026-22997}
• CVE-2026-22991
  • libceph: make free_choose_arg_map() resilient to partial allocation {CVE-2026-22991}
• CVE-2026-22990
  • libceph: replace overzealous BUG_ON in osdmap_apply_incremental() {CVE-2026-22990}
• CVE-2026-22978
  • wifi: avoid kernel-infoleak from struct iw_point {CVE-2026-22978}
• CVE-2026-22977
  • net: sock: fix hardened usercopy panic in sock_recv_errqueue {CVE-2026-22977}
• CVE-2025-71154
  • net: usb: rtl8150: fix memory leak on usb_submit_urb() failure {CVE-2025-71154}
• CVE-2025-71085
  • ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() {CVE-2025-71085}
• CVE-2025-68734
  • isdn: mISDN: hfcsusb: fix memory leak in hfcsusb_probe() {CVE-2025-68734}
• CVE-2025-68349
  • NFSv4/pNFS: Clear…

• CVE-2025-68214
  • timers: Fix NULL function pointer race in timer_shutdown_sync() {CVE-2025-68214}
• CVE-2024-58093
  • PCI/ASPM: Fix link state exit during switch upstream function removal {CVE-2024-58093}
• CVE-2026-72463
  • xfrm: Fix dev use-after-free in xfrm async resumption {CVE-2026-72463}
• CVE-2026-64600
  • xfs: resample the data fork mapping after cycling ILOCK {CVE-2026-64600}
• CVE-2026-64095
  • batman-adv: bla: avoid double decrement of bla.num_requests {CVE-2026-64095}
• CVE-2026-64274
  • Input: goodix - clamp the device-reported contact count {CVE-2026-64274}
• CVE-2026-64273
  • Input: iforce - bound the device-reported force-feedback effect index {CVE-2026-64273}
• CVE-2026-64270
  • Input: mms114 - reject an oversized device packet size {CVE-2026-64270}
• CVE-2026-64188
  • net: qualcomm: rmnet: fix endpoint use-after-free in rmnet_dellink() {CVE-2026-64188}
• CVE-2026-64096
  • batman-adv: mcast: fix use-after-free in orig_node RCU release {CVE-2026-64096}
• CVE-2026-64093
  • batman-adv: tp_meter: directly shut down timer on cleanup {CVE-2026-64093}
• CVE-2026-64091
  • batman-adv: tt: fix TOCTOU race for reported vlans {CVE-2026-64091}
• CVE-2026-64298
  • NFSv4: include MAY_WRITE in open permission mask for O_TRUNC {CVE-2026-64298}
• CVE-2026-64276
  • Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count {CVE-2026-64276}
• CVE-2026-64271
  • Input: touchwin - reset the packet index on every complete packet {CVE-2026-64271}
• CVE-2026-64266
  • fuse: re-lock request before returning from fuse_ref_folio() {CVE-2026-64266}
• CVE-2026-64218
  • batman-adv: bla: fix report_work leak on backbone_gw purge {CVE-2026-64218}
• CVE-2026-64191
  • i2c: stub: Reject I2C block transfers with invalid length {CVE-2026-64191}
• CVE-2026-64115
  • vsock/vmci: fix UAF when peer resets connection during handshake {CVE-2026-64115}
• CVE-2026-64114
  • ipv4: raw: reject IP_HDRINCL packets with ihl < 5 {CVE-2026-64114}
• CVE-2026-64113
  • ixgbevf: fix use-after-free in VEPA multicast source pruning {CVE-2026-64113}
• CVE-2026-64103
  • scsi: isci: Fix use-after-free in device removal path {CVE-2026-64103}
• CVE-2026-43249
  • 9p/xen: protect xen_9pfs_front_free against concurrent calls {CVE-2026-43249}
• CVE-2025-39686
  • comedi: Make insn_rw_emulate_bits() do insn->n samples {CVE-2025-39686}
• CVE-2025-38068
  • crypto: lzo - Fix compression buffer overrun {CVE-2025-38068}
• CVE-2025-39901
  • i40e: remove read access to debugfs files {CVE-2025-39901}
• CVE-2023-54207
  • HID: uclogic: Correct devm device reference for hidinput input_dev name {CVE-2023-54207}
• CVE-2023-53446
  • PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• CVE-2022-50422
  • scsi: libsas: Fix use-after-free bug in smp_execute_task_sg() {CVE-2022-50422}
• CVE-2022-50066
  • net: atlantic: fix aq_vec index out of range error {CVE-2022-50066}
• CVE-2025-71152
  • net: dsa: properly keep track of master (conduit) reference {CVE-2025-71152}
• CVE-2026-53131
  • netfilter: require Ethernet MAC header before using eth_hdr() {CVE-2026-53131}
• CVE-2026-31685
  • netfilter: ip6t_eui64: reject invalid MAC header for all packets {CVE-2026-31685}
• CVE-2026-31768
  • iio: adc: ti-adc161s626: use DMA-safe memory for spi_read() {CVE-2026-31768}
• CVE-2026-43458
  • serial: caif: hold tty->link reference in ldisc_open and ser_release {CVE-2026-43458}
  • serial: caif: hold tty->link reference in ldisc_open and ser_release {CVE-2026-43458}
• CVE-2023-53338
  • lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• CVE-2026-43076…

• CVE-2025-68214
  • timers: Fix NULL function pointer race in timer_shutdown_sync() {CVE-2025-68214}
• CVE-2024-58093
  • PCI/ASPM: Fix link state exit during switch upstream function removal {CVE-2024-58093}
• CVE-2026-72463
  • xfrm: Fix dev use-after-free in xfrm async resumption {CVE-2026-72463}
• CVE-2026-64600
  • xfs: resample the data fork mapping after cycling ILOCK {CVE-2026-64600}
• CVE-2026-64095
  • batman-adv: bla: avoid double decrement of bla.num_requests {CVE-2026-64095}
• CVE-2026-64274
  • Input: goodix - clamp the device-reported contact count {CVE-2026-64274}
• CVE-2026-64273
  • Input: iforce - bound the device-reported force-feedback effect index {CVE-2026-64273}
• CVE-2026-64270
  • Input: mms114 - reject an oversized device packet size {CVE-2026-64270}
• CVE-2026-64188
  • net: qualcomm: rmnet: fix endpoint use-after-free in rmnet_dellink() {CVE-2026-64188}
• CVE-2026-64096
  • batman-adv: mcast: fix use-after-free in orig_node RCU release {CVE-2026-64096}
• CVE-2026-64093
  • batman-adv: tp_meter: directly shut down timer on cleanup {CVE-2026-64093}
• CVE-2026-64091
  • batman-adv: tt: fix TOCTOU race for reported vlans {CVE-2026-64091}
• CVE-2026-64298
  • NFSv4: include MAY_WRITE in open permission mask for O_TRUNC {CVE-2026-64298}
• CVE-2026-64276
  • Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count {CVE-2026-64276}
• CVE-2026-64271
  • Input: touchwin - reset the packet index on every complete packet {CVE-2026-64271}
• CVE-2026-64266
  • fuse: re-lock request before returning from fuse_ref_folio() {CVE-2026-64266}
• CVE-2026-64218
  • batman-adv: bla: fix report_work leak on backbone_gw purge {CVE-2026-64218}
• CVE-2026-64191
  • i2c: stub: Reject I2C block transfers with invalid length {CVE-2026-64191}
• CVE-2026-64115
  • vsock/vmci: fix UAF when peer resets connection during handshake {CVE-2026-64115}
• CVE-2026-64114
  • ipv4: raw: reject IP_HDRINCL packets with ihl < 5 {CVE-2026-64114}
• CVE-2026-64113
  • ixgbevf: fix use-after-free in VEPA multicast source pruning {CVE-2026-64113}
• CVE-2026-64103
  • scsi: isci: Fix use-after-free in device removal path {CVE-2026-64103}
• CVE-2026-43249
  • 9p/xen: protect xen_9pfs_front_free against concurrent calls {CVE-2026-43249}
• CVE-2025-39686
  • comedi: Make insn_rw_emulate_bits() do insn->n samples {CVE-2025-39686}
• CVE-2025-38068
  • crypto: lzo - Fix compression buffer overrun {CVE-2025-38068}
• CVE-2025-39901
  • i40e: remove read access to debugfs files {CVE-2025-39901}
• CVE-2023-54207
  • HID: uclogic: Correct devm device reference for hidinput input_dev name {CVE-2023-54207}
• CVE-2023-53446
  • PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• CVE-2022-50422
  • scsi: libsas: Fix use-after-free bug in smp_execute_task_sg() {CVE-2022-50422}
• CVE-2022-50066
  • net: atlantic: fix aq_vec index out of range error {CVE-2022-50066}
• CVE-2025-71152
  • net: dsa: properly keep track of master (conduit) reference {CVE-2025-71152}
• CVE-2026-53131
  • netfilter: require Ethernet MAC header before using eth_hdr() {CVE-2026-53131}
• CVE-2026-31685
  • netfilter: ip6t_eui64: reject invalid MAC header for all packets {CVE-2026-31685}
• CVE-2026-31768
  • iio: adc: ti-adc161s626: use DMA-safe memory for spi_read() {CVE-2026-31768}
• CVE-2026-43458
  • serial: caif: hold tty->link reference in ldisc_open and ser_release {CVE-2026-43458}
  • serial: caif: hold tty->link reference in ldisc_open and ser_release {CVE-2026-43458}
• CVE-2023-53338
  • lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• CVE-2026-43076…

• CVE-2026-64375
  • proc: protect ptrace_may_access() with exec_update_lock (FD links) {CVE-2026-64375}
  • exec: Add exec_update_mutex to replace cred_guard_mutex {CVE-2026-64375}
• CVE-2026-53266
  • netfilter: bridge: make ebt_snat ARP rewrite writable {CVE-2026-53266}
• CVE-2025-39964
  • crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg {CVE-2025-39964}
• CVE-2025-38068
  • crypto: lzo - Fix compression buffer overrun {CVE-2025-38068}
• CVE-2024-56570
  • ovl: Filter invalid inodes with missing lookup function {CVE-2024-56570}
• CVE-2025-21753
  • btrfs: fix use-after-free when attempting to join an aborted transaction {CVE-2025-21753}
• CVE-2026-46116
  • xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete {CVE-2026-46116}
• CVE-2022-49811
  • drbd: use after free in drbd_create_device() {CVE-2022-49811}
• CVE-2022-49059
  • nfc: nci: add flush_workqueue to prevent uaf {CVE-2022-49059}
• CVE-2025-22004
  • net: atm: fix use after free in lec_send() {CVE-2025-22004}
• CVE-2025-21764
  • ndisc: use RCU protection in ndisc_alloc_skb() {CVE-2025-21764}
• CVE-2025-21762
  • arp: use RCU protection in arp_xmit() {CVE-2025-21762}
• CVE-2026-52934
  • batman-adv: tvlv: reject oversized TVLV packets {CVE-2026-52934}
• CVE-2026-46090
  • ALSA: aloop: Fix peer runtime UAF during format-change stop {CVE-2026-46090}
• CVE-2026-53131
  • netfilter: require Ethernet MAC header before using eth_hdr() {CVE-2026-53131}
• CVE-2026-53091
  • net: pull headers in qdisc_pkt_len_init() {CVE-2026-53091}
• CVE-2026-52986
  • netfilter: nf_conntrack_sip: don't use simple_strtoul {CVE-2026-52986}
• CVE-2025-71116
  • libceph: make decode_pool() more resilient against corrupted osdmaps {CVE-2025-71116}
• CVE-2026-43493
  • crypto: pcrypt - Fix handling of MAY_BACKLOG requests {CVE-2026-43493}
• CVE-2026-31597
  • ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY {CVE-2026-31597}
• CVE-2026-43116
  • netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}
• CVE-2026-43458
  • serial: caif: hold tty->link reference in ldisc_open and ser_release {CVE-2026-43458}
• CVE-2026-53002
  • netfilter: conntrack: remove sprintf usage {CVE-2026-53002}
• CVE-2026-46212
  • batman-adv: bla: prevent use-after-free when deleting claims {CVE-2026-46212}
• CVE-2026-31787
  • xen/privcmd: fix double free via VMA splitting {CVE-2026-31787}
• CVE-2023-53357
  • md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• CVE-2026-43075
  • ocfs2: fix out-of-bounds write in ocfs2_write_end_inline {CVE-2026-43075}
• CVE-2026-43076
  • ocfs2: validate inline data i_size during inode read {CVE-2026-43076}
• CVE-2025-38464
  • tipc: Fix use-after-free in tipc_conn_close(). {CVE-2025-38464}
• CVE-2026-23269
  • apparmor: validate DFA start states are in bounds in unpack_pdb {CVE-2026-23269}
• CVE-2026-43279
  • ALSA: usb-audio: Add sanity check for OOB writes at silencing {CVE-2026-43279}
• CVE-2024-36013
  • Bluetooth: L2CAP: Fix slab-use-after-free in l2cap_connect() {CVE-2024-36013}
• CVE-2026-53228
  • ipv6: sit: reload inner IPv6 header after GSO offloads {CVE-2026-53228}
• CVE-2026-45970
  • bonding: alb: fix UAF in rlb_arp_recv during bond up/down {CVE-2026-45970}
• CVE-2026-52920
  • netfilter: xt_policy: fix strict mode inbound policy matching {CVE-2026-52920}
• CVE-2026-46270
  • power: supply: rt9455: Fix use-after-free in power_supply_changed() {CVE-2026-46270}
• CVE-2026-46259
  • procfs: fix missing RCU protection when reading real_parent in do_task_stat() {CVE-2026-46259}
• CVE-2026-52998
  • netfilter: xt_osf: fix potential NULL…

In the Linux kernel, the following vulnerability has been resolved: fs: dlm: fix use after free in midcomms commit While working on processing dlm message in softirq context I experienced the following KASAN use-after-free warning: .

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw() This patch fixes a NULL pointer dereference bug in brcmfmac that occurs when a high 'sd_sgentry_align' value applies (e.g. 512) and a lot of queued SKBs are sent from the pkt queue.

In the Linux kernel, the following vulnerability has been resolved: padata: fix UAF in padata_reorder A bug was found when run ltp test: BUG: KASAN: slab-use-after-free in padata_find_next+0x29/0x1a0 Read of size 4 at addr ffff88bbfe003524 by task kworker/u113:2/3039206 CPU: 0 PID: 3039206 Comm: kworker/u113:2 Kdump: loaded Not tainted 6.6.0+ Workqueue: pdecrypt_parallel padata_parallel_worker Call Trace: <TASK> dump_stack_lvl+0x32/0x50 print_address_description.constprop.0+0x6b/0x3d0 print_report+0xdd/0x2c0 kasan_report+0xa5/0xd0 padata_find_next+0x29/0x1a0 padata_reorder+0x131/0x220 padata_parallel_worker+0x3d/0xc0 process_one_work+0x2ec/0x5a0 If 'mdelay(10)' is added before calling 'padata_find_next' in the 'padata_reorder' function, this issue could be reproduced easily with ltp test (pcrypt_aead01).

In the Linux kernel, the following vulnerability has been resolved: geneve: Fix use-after-free in geneve_find_dev().

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_sessions_deregister() In multichannel mode, UAF issue can occur in session_deregister when the second channel sets up a session through the connection of the first channel.

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tunnel: fix geneve_opt type confusion addition When handling multiple NFTA_TUNNEL_KEY_OPTS_GENEVE attributes, the parsing logic should place every geneve_opt structure one by one compactly.

In the Linux kernel, the following vulnerability has been resolved: ext4: ignore xattrs past end Once inside 'ext4_xattr_inode_dec_ref_all' we should ignore xattrs entries past the 'end' entry.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in __smb2_lease_break_noti() Move tcp_transport free to ksmbd_conn_free.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krb_authenticate krb_authenticate frees sess->user and does not set the pointer to NULL.

In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.)(CVE-2025-37823).

In the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb->s_sequence check Journal emptiness is not determined by sb->s_sequence .

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix mode1 reset crash issue If HW scheduler hangs and mode1 reset is used to recover GPU, KFD signal user space to abort the processes.

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Use local fence in error path of xe_migrate_clear The intent of the error path in xe_migrate_clear is to wait on locally generated fence and then return.

In the Linux kernel, the following vulnerability has been resolved: net_sched: qfq: Fix double list add in class with netem as child qdisc As described in Gerrard's report .

In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: Fix double list add in class with netem as child qdisc As described in Gerrard's report .

In the Linux kernel, the following vulnerability has been resolved: vxlan: vnifilter: Fix unlocked deletion of default FDB entry When a VNI is deleted…