PT-2025-38184 · Linux+3 · Linux Kernel+3

Published 2024-04-30 · Updated 2025-10-23 · CVE-2022-50374

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The Linux kernel contains a flaw related to Bluetooth handling. Specifically, a NULL pointer dereference can occur in the hci uart tty close() function due to a failure in percpu init rwsem() not being properly handled by hci uart tty open(). Additionally, hci uart register device() ignores failures in percpu init rwsem(), and hci uart unregister device() does not call percpu free rwsem().

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

Exploit

Use of Uninitialized Resource

NULL Pointer Dereference

Weakness Enumeration

CWE-908

CWE-476

Related Identifiers

BDU:2026-05856

CVE-2022-50374

OESA-2025-2406

RHSA-2024:2394

RHSA-2024_2394

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 892

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50374.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53241 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-39883 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-39866 · Security Note
• https://osv.dev/vulnerability/OESA-2025-2406 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53165 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50330 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53215 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-50374 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53339 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50374 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50374 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53437 · Security Note
• https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53438 · Security Note