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DEBIAN-CVE-2022-50386

DEBIAN-CVE-2022-50386 PUBLISHED CVSS 8 HIGH

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

Risk Scores

CVSS 3.1
8
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Debian:12linux0, 0, 0
Debian:11linux5.10.113-1, *, 5.10.92-1
Debian:13linux0, 0, 0
Debian:14linux0, 0, 0

Timeline

  • Sep 18, 2025 CVE Published
  • Apr 28, 2026 CVE Updated
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