🛡️ CVE-2022-50386 on Ubuntu — linux

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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

Distribution advisory

This page covers CVE-2022-50386 as tracked by Ubuntu, for the package linux. The fix is available in version 5.15.0-60.66; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

UBUNTU-CVE-2022-50386 is recorded against 120 packages.

  • linux (fixed in 5.15.0-60.66)
  • linux-allwinner-5.19
  • linux-aws (fixed in 5.15.0-1030.34)
  • linux-aws-5.0
  • linux-aws-5.11
  • linux-aws-5.13
  • linux-aws-5.15 (fixed in 5.15.0-1030.34~20.04.1)
  • linux-aws-5.19
  • linux-aws-5.3
  • linux-aws-5.4 (fixed in 5.4.0-1096.104~18.04.1)
  • linux-aws-5.8
  • linux-aws-6.2
  • linux-aws-6.5
  • linux-aws-fips
  • linux-aws-hwe (fixed in 4.15.0-1151.164~16.04.1)
  • linux-azure (fixed in 5.15.0-1033.40)
  • linux-azure-4.15 (fixed in 4.15.0-1161.176)
  • linux-azure-5.11
  • linux-azure-5.13
  • linux-azure-5.15 (fixed in 5.15.0-1033.40~20.04.1)
  • linux-azure-5.19
  • linux-azure-5.3
  • linux-azure-5.4 (fixed in 5.4.0-1103.109~18.04.1)
  • linux-azure-5.8
Show the remaining 96 packages
  • linux-azure-6.11
  • linux-azure-6.2
  • linux-azure-6.5
  • linux-azure-edge
  • linux-azure-fde
  • linux-azure-fde-5.15 (fixed in 5.15.0-1114.123~20.04.1)
  • linux-azure-fde-5.19
  • linux-azure-fde-6.2
  • linux-azure-fips
  • linux-bluefield
  • linux-fips
  • linux-gcp (fixed in 5.15.0-1029.36)
  • linux-gcp-4.15 (fixed in 4.15.0-1145.161)
  • linux-gcp-5.11
  • linux-gcp-5.13
  • linux-gcp-5.15 (fixed in 5.15.0-1029.36~20.04.1)
  • linux-gcp-5.19
  • linux-gcp-5.3
  • linux-gcp-5.4 (fixed in 5.4.0-1100.109~18.04.1)
  • linux-gcp-5.8
  • linux-gcp-6.11
  • linux-gcp-6.2
  • linux-gcp-6.5
  • linux-gcp-fips
  • linux-gke (fixed in 5.15.0-1027.32)
  • linux-gke-4.15
  • linux-gke-5.15
  • linux-gke-5.4
  • linux-gkeop (fixed in 5.15.0-1015.19)
  • linux-gkeop-5.15
  • linux-gkeop-5.4
  • linux-hwe
  • linux-hwe-5.11
  • linux-hwe-5.13
  • linux-hwe-5.15 (fixed in 5.15.0-60.66~20.04.1)
  • linux-hwe-5.19
  • linux-hwe-5.4 (fixed in 5.4.0-139.156~18.04.1)
  • linux-hwe-5.8
  • linux-hwe-6.11
  • linux-hwe-6.2
  • linux-hwe-6.5
  • linux-hwe-edge
  • linux-ibm (fixed in 5.15.0-1025.28)
  • linux-ibm-5.4 (fixed in 5.4.0-1044.49~18.04.1)
  • linux-intel
  • linux-intel-5.13
  • linux-intel-iot-realtime
  • linux-intel-iotg (fixed in 5.15.0-1025.30)
  • linux-intel-iotg-5.15 (fixed in 5.15.0-1025.30~20.04.1)
  • linux-iot (fixed in 5.4.0-1012.14)
  • linux-kvm (fixed in 5.15.0-1028.33)
  • linux-lowlatency (fixed in 5.15.0-60.66)
  • linux-lowlatency-hwe-5.15 (fixed in 5.15.0-60.66~20.04.1)
  • linux-lowlatency-hwe-5.19
  • linux-lowlatency-hwe-6.11
  • linux-lowlatency-hwe-6.2
  • linux-lowlatency-hwe-6.5
  • linux-lts-xenial
  • linux-nvidia (fixed in 5.15.0-1017.17)
  • linux-nvidia-6.2
  • linux-nvidia-6.5
  • linux-oem
  • linux-oem-5.10
  • linux-oem-5.13
  • linux-oem-5.14
  • linux-oem-5.17
  • linux-oem-5.6
  • linux-oem-6.0
  • linux-oem-6.1
  • linux-oem-6.11
  • linux-oem-6.5
  • linux-oem-6.8
  • linux-oracle (fixed in 5.15.0-1029.35)
  • linux-oracle-5.0
  • linux-oracle-5.11
  • linux-oracle-5.13
  • linux-oracle-5.15 (fixed in 5.15.0-1029.35~20.04.1)
  • linux-oracle-5.3
  • linux-oracle-5.4 (fixed in 5.4.0-1093.102~18.04.1)
  • linux-oracle-5.8
  • linux-oracle-6.5
  • linux-raspi (fixed in 5.15.0-1024.26)
  • linux-raspi-5.4 (fixed in 5.4.0-1080.91~18.04.1)
  • linux-raspi-realtime
  • linux-raspi2
  • linux-realtime
  • linux-riscv
  • linux-riscv-5.11
  • linux-riscv-5.15 (fixed in 5.15.0-1029.33~20.04.1)
  • linux-riscv-5.19
  • linux-riscv-5.8
  • linux-riscv-6.5
  • linux-starfive-5.19
  • linux-starfive-6.2
  • linux-starfive-6.5
  • linux-xilinx-zynqmp (fixed in 5.4.0-1021.25)

Timeline and source

Published on 18 September 2025 and last revised on 11 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)

CVE-2022-50386 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-09-18
Updated 2026-08-12
Modified 2026-08-11
Fix URL N/A

Affected Packages

Software From version Fixed in
linux — 5.15.0-60.66
linux-allwinner-5.19 — —
linux-aws — 5.15.0-1030.34
linux-aws-5.0 — —
linux-aws-5.11 — —
linux-aws-5.13 — —
linux-aws-5.15 — 5.15.0-1030.34~20.04.1
linux-aws-5.19 — —
linux-aws-5.3 — —
linux-aws-5.4 — 5.4.0-1096.104~18.04.1
linux-aws-5.8 — —
linux-aws-6.2 — —
linux-aws-6.5 — —
linux-aws-fips — —
linux-aws-hwe — 4.15.0-1151.164~16.04.1
linux-azure — 5.15.0-1033.40
linux-azure-4.15 — 4.15.0-1161.176
linux-azure-5.11 — —
linux-azure-5.13 — —
linux-azure-5.15 — 5.15.0-1033.40~20.04.1
linux-azure-5.19 — —
linux-azure-5.3 — —
linux-azure-5.4 — 5.4.0-1103.109~18.04.1
linux-azure-5.8 — —
linux-azure-6.11 — —
linux-azure-6.2 — —
linux-azure-6.5 — —
linux-azure-edge — —
linux-azure-fde — —
linux-azure-fde-5.15 — 5.15.0-1114.123~20.04.1
linux-azure-fde-5.19 — —
linux-azure-fde-6.2 — —
linux-azure-fips — —
linux-bluefield — —
linux-fips — —
linux-gcp — 5.15.0-1029.36
linux-gcp-4.15 — 4.15.0-1145.161
linux-gcp-5.11 — —
linux-gcp-5.13 — —
linux-gcp-5.15 — 5.15.0-1029.36~20.04.1
linux-gcp-5.19 — —
linux-gcp-5.3 — —
linux-gcp-5.4 — 5.4.0-1100.109~18.04.1
linux-gcp-5.8 — —
linux-gcp-6.11 — —
linux-gcp-6.2 — —
linux-gcp-6.5 — —
linux-gcp-fips — —
linux-gke — 5.15.0-1027.32
linux-gke-4.15 — —
linux-gke-5.15 — —
linux-gke-5.4 — —
linux-gkeop — 5.15.0-1015.19
linux-gkeop-5.15 — —
linux-gkeop-5.4 — —
linux-hwe — —
linux-hwe-5.11 — —
linux-hwe-5.13 — —
linux-hwe-5.15 — 5.15.0-60.66~20.04.1
linux-hwe-5.19 — —
linux-hwe-5.4 — 5.4.0-139.156~18.04.1
linux-hwe-5.8 — —
linux-hwe-6.11 — —
linux-hwe-6.2 — —
linux-hwe-6.5 — —
linux-hwe-edge — —
linux-ibm — 5.15.0-1025.28
linux-ibm-5.4 — 5.4.0-1044.49~18.04.1
linux-intel — —
linux-intel-5.13 — —
linux-intel-iot-realtime — —
linux-intel-iotg — 5.15.0-1025.30
linux-intel-iotg-5.15 — 5.15.0-1025.30~20.04.1
linux-iot — 5.4.0-1012.14
linux-kvm — 5.15.0-1028.33
linux-lowlatency — 5.15.0-60.66
linux-lowlatency-hwe-5.15 — 5.15.0-60.66~20.04.1
linux-lowlatency-hwe-5.19 — —
linux-lowlatency-hwe-6.11 — —
linux-lowlatency-hwe-6.2 — —
linux-lowlatency-hwe-6.5 — —
linux-lts-xenial — —
linux-nvidia — 5.15.0-1017.17
linux-nvidia-6.2 — —
linux-nvidia-6.5 — —
linux-oem — —
linux-oem-5.10 — —
linux-oem-5.13 — —
linux-oem-5.14 — —
linux-oem-5.17 — —
linux-oem-5.6 — —
linux-oem-6.0 — —
linux-oem-6.1 — —
linux-oem-6.11 — —
linux-oem-6.5 — —
linux-oem-6.8 — —
linux-oracle — 5.15.0-1029.35
linux-oracle-5.0 — —
linux-oracle-5.11 — —
linux-oracle-5.13 — —
linux-oracle-5.15 — 5.15.0-1029.35~20.04.1
linux-oracle-5.3 — —
linux-oracle-5.4 — 5.4.0-1093.102~18.04.1
linux-oracle-5.8 — —
linux-oracle-6.5 — —
linux-raspi — 5.15.0-1024.26
linux-raspi-5.4 — 5.4.0-1080.91~18.04.1
linux-raspi-realtime — —
linux-raspi2 — —
linux-realtime — —
linux-riscv — —
linux-riscv-5.11 — —
linux-riscv-5.15 — 5.15.0-1029.33~20.04.1
linux-riscv-5.19 — —
linux-riscv-5.8 — —
linux-riscv-6.5 — —
linux-starfive-5.19 — —
linux-starfive-6.2 — —
linux-starfive-6.5 — —
linux-xilinx-zynqmp — 5.4.0-1021.25

References

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