PT-2025-38169 · Linux+3 · Linux Kernel+3

Published 2022-08-30 · Updated 2025-12-09 · CVE-2022-50359

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 A null-ptr-deref bug exists in the buffer prepare() function within the cx88 driver. This issue occurs when the cx88 risc buffer() function call fails, resulting in an empty buffer and a subsequent null-pointer dereference in buffer queue(). The issue is revealed through general protection fault logs and KASAN reports indicating a null-ptr-deref.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-04868

CVE-2022-50359

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-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Linux Kernel

Suse

Cx88

References · 1015

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50359.json · Exploit
• https://osv.dev/vulnerability/CVE-2022-50359 · Vendor Advisory
• https://git.kernel.org/stable/c/c76d04d2079a4b7369ce9a0e859c0f3f2250bcc1 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50359 · Vendor Advisory
• https://git.kernel.org/stable/c/9181af2dbf06e7f432e5dbe88d10b22343e851b9 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:3716-1 · Vendor Advisory
• https://git.kernel.org/stable/c/644d5a87ab1863eb606526ea743021752a17e9cb · Patch
• https://git.kernel.org/stable/c/6f21976095c1e92454ab030976f95f40d652351b · Patch
• https://git.kernel.org/stable/c/c2257c8a501537afab276c306cb717b7260276e1 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50359 · Security Note
• https://git.kernel.org/stable/c/4befc7ffa18ef9a4b70d854465313a345a06862f · Patch
• https://ubuntu.com/security/CVE-2022-50359 · Vendor Advisory
• https://git.kernel.org/stable/c/2b064d91440b33fba5b452f2d1b31f13ae911d71 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-50359 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-04868 · Security Note