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SUSE-SU-2025:3703-1

Опубликовано: 21 окт. 2025
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 71 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-122_269 fixes several issues.

The following security issues were fixed:

  • CVE-2022-50386: Bluetooth: L2CAP: Fix user-after-free (bsc#1250302).
  • CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (bsc#1248673).
  • CVE-2025-38644: wifi: mac80211: reject TDLS operations when station is not associated (bsc#1248749).

Список пакетов

SUSE Linux Enterprise Live Patching 12 SP5
kgraft-patch-4_12_14-122_269-default-3-2.1

Ссылки

Описание

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent the following trace: Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref *kref) Bluetooth: chan 0000000023c4974d Bluetooth: parent 00000000ae861c08 ================================================================== BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:191 [inline] BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:671 [inline] BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400 kernel/locking/mutex.c:729 Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_269-default-3-2.1
Ссылки

Описание

In the Linux kernel, the following vulnerability has been resolved: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns What we want is to verify there is that clone won't expose something hidden by a mount we wouldn't be able to undo. "Wouldn't be able to undo" may be a result of MNT_LOCKED on a child, but it may also come from lacking admin rights in the userns of the namespace mount belongs to. clone_private_mnt() checks the former, but not the latter. There's a number of rather confusing CAP_SYS_ADMIN checks in various userns during the mount, especially with the new mount API; they serve different purposes and in case of clone_private_mnt() they usually, but not always end up covering the missing check mentioned above.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_269-default-3-2.1
Ссылки

Описание

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: reject TDLS operations when station is not associated syzbot triggered a WARN in ieee80211_tdls_oper() by sending NL80211_TDLS_ENABLE_LINK immediately after NL80211_CMD_CONNECT, before association completed and without prior TDLS setup. This left internal state like sdata->u.mgd.tdls_peer uninitialized, leading to a WARN_ON() in code paths that assumed it was valid. Reject the operation early if not in station mode or not associated.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_269-default-3-2.1
Ссылки