xfs: resample the data fork mapping after cycling ILOCK

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

In the Linux kernel, the following vulnerability has been resolved: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete KASAN reproduces a slab-use-after-free in __xfrm_state_delete()'s hlist_del_rcu calls under syzkaller load on linux-6.12.y stable (reproduced on 6.12.47, also reachable via the same code path on torvalds/master and on the ipsec tree). Nine unique signatures cluster in the xfrm_state lifecycle, the load-bearing one being: BUG: KASAN: slab-use-after-free in __hlist_del include/linux/list.h:990 [inline] BUG: KASAN: slab-use-after-free in hlist_del_rcu include/linux/rculist.h:516 [inline] BUG: KASAN: slab-use-after-free in __xfrm_state_delete net/xfrm/xfrm_state.c Write of size 8 at addr ffff8881198bcb70 by task kworker/u8:9/435 Workqueue: netns cleanup_net Call Trace: __hlist_del / hlist_del_rcu __xfrm_state_delete xfrm_state_delete xfrm_state_flush xfrm_state_fini ops_exit_list cleanup_net The other observed signatur...

Уязвимость функции __xfrm_state_delete() модуля net/xfrm/xfrm_state.c реализации сетевых функций ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK xfs_reflink_fill_{cow_hole,delalloc} are both presented with an inode, a data fork mapping, and a cow fork mapping. Unfortunately, these two helpers cycle the ILOCK to grab a transaction, which means that the mappings are stale as soon as we reacquire the ILOCK. Currently we refresh the cow fork mapping by re-calling xfs_find_trim_cow_extent, but we don't refresh the data fork mapping beforehand, which means that the xfs_bmap_trim_cow in that function queries the refcount btree about the wrong physical blocks and returns an inaccurate value in *shared. If *shared is now false, the directio write proceeds with a stale data fork mapping. Fix this by querying the data fork mapping if the sequence counter changes across the ILOCK cycle.

ELBA-2026-39332: kernel bug fix and enhancement update (NA)

Уязвимость функций xfs_reflink_fill_cow_hole() и xfs_reflink_fill_delalloc() модуля fs/xfs/xfs_reflink.c файловой системы XFS ядра операционных систем Linux, позволяющая нарушителю оказать влияние на конфиденциальность, целостность и доступность защищаемой информации

ELBA-2026-500163: Unbreakable Enterprise kernel bug fix update (NA)

Security update for the Linux Kernel (Live Patch 19 for SUSE Linux Enterprise 15 SP7)

Important: kernel security, bug fix, and enhancement update

ELSA-2026-39494: kernel security, bug fix, and enhancement update (IMPORTANT)

ELSA-2026-500238: Unbreakable Enterprise kernel security update (IMPORTANT)

Security update for the Linux Kernel

Security update for the Linux Kernel (Live Patch 85 for SUSE Linux Enterprise 12 SP5)

Security update for the Linux Kernel (Live Patch 29 for SUSE Linux Enterprise 15 SP6)

Security update for the Linux Kernel (Live Patch 57 for SUSE Linux Enterprise 15 SP4)

ELSA-2026-500121: Unbreakable Enterprise kernel security update (IMPORTANT)

Security update for the Linux Kernel (Live Patch 43 for SUSE Linux Enterprise 15 SP5)

Security update for the Linux Kernel (Live Patch 18 for SUSE Linux Enterprise 15 SP7)

ELSA-2026-50319: Unbreakable Enterprise kernel security update (IMPORTANT)