CVE-2022-50386

HIGH EPSS 24.8%
Published Sep 18, 20259mo ago · Modified Jun 17, 20262w ago
8.0 CVSS 3.1
High
Find Similar
Published Sep 18, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

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

CVSS Details

Base Score
8.0
Exploitability
2.1
Impact
5.9
Vector string
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
24.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <4.9.331
linuxlinux_kernel*≥4.10  –  <4.14.296
linuxlinux_kernel*≥4.15  –  <4.19.262
linuxlinux_kernel*≥4.20  –  <5.4.220
linuxlinux_kernel*≥5.5  –  <5.10.150
linuxlinux_kernel*≥5.11  –  <5.15.75
linuxlinux_kernel*≥5.16  –  <5.19.17
linuxlinux_kernel*≥6.0  –  <6.0.3

References 9

  • git.kernel.org https://git.kernel.org/stable/c/0c108cf3ad386e0084277093b55a351c49e0be27
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/11e40d6c0823f699d8ad501e48d1c3ae4be386cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/15fc21695eb606bdc5d483b92118ee42610a952d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ffde6e03085874ae22263ff4cef4869f797e84f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/843fc4e386dd84b806a7f07fb062d8c3a44e5364
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d1e894f950ad48897d1a7cb05909ea29d8c3810e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d91fc2836562f299f34e361e089e9fe154da4f73
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0c108cf3ad386e0084277093b55a351c49e0be27
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/11e40d6c0823f699d8ad501e48d1c3ae4be386cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/15fc21695eb606bdc5d483b92118ee42610a952d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ffde6e03085874ae22263ff4cef4869f797e84f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/843fc4e386dd84b806a7f07fb062d8c3a44e5364
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d1e894f950ad48897d1a7cb05909ea29d8c3810e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d91fc2836562f299f34e361e089e9fe154da4f73
    Patch