PT-2025-38334 · Linux+6 · Linux Kernel+6

Published 2022-09-29 · Updated 2025-11-18 · CVE-2022-50386

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contains a use-after-free vulnerability in the Bluetooth L2CAP implementation. The vulnerability occurs due to a flaw in handling channel destruction and can lead to a kernel crash. The fix involves using l2cap chan hold unless zero() after calling l2cap get chan blah() to prevent the use-after-free condition.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALSA-2025:19102

ALSA-2025:19103

ALSA-2025_16880

ALSA-2025_18281

ALSA-2025_19102

ALSA-2025_19103

ALSA-2025_19409

BDU:2026-01343

CESA-2025_19102

CESA-2025_19103

CVE-2022-50386

INFSA-2025_19102

INFSA-2025_19103

OESA-2025-2468

RHSA-2025:19102

RHSA-2025:19103

RHSA-2025:21083

RHSA-2025:21091

RHSA-2025:21136

RHSA-2025:22095

RHSA-2025:22124

RHSA-2025_19102

RHSA-2025_19103

SUSE-SU-2025:03613-1

SUSE-SU-2025:03614-1

SUSE-SU-2025:03615-1

SUSE-SU-2025:03626-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:03652-1

SUSE-SU-2025:03653-1

SUSE-SU-2025:03656-1

SUSE-SU-2025:03662-1

SUSE-SU-2025:3684-1

SUSE-SU-2025:3703-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

SUSE-SU-2025:4123-1

Affected Products

Almalinux

Astra Linux

Centos

Linux Kernel

Red Hat

Rocky Linux

Suse

References · 1192

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50386.json · Exploit
• https://errata.rockylinux.org/RLSA-2025:19103 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53229 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:03613-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53480 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53220 · Security Note
• https://git.kernel.org/stable/c/843fc4e386dd84b806a7f07fb062d8c3a44e5364 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50386 · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2025-19102.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-19102.html · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2025:19103 · Vendor Advisory
• https://git.kernel.org/stable/c/d91fc2836562f299f34e361e089e9fe154da4f73 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50347 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-50386 · Vendor Advisory
• https://git.kernel.org/stable/c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45 · Patch