PT-2025-8263 · Linux+3 · Linux Kernel+3

Oliver Sang · Published 2024-11-12 · Updated 2025-09-29 · CVE-2022-49329

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 pointer dereference issue has been identified in the Linux kernel, specifically in the vduse component when accessing the control device's msg timeout attribute via sysfs. This issue occurs because the control device lacks drvdata, leading to a NULL pointer dereference. The problem is evident when the msg timeout show function is called, resulting in a kernel NULL pointer dereference error.

Recommendations To resolve this issue, do not create the unneeded attribute for the control device anymore, as this attribute is the cause of the NULL pointer dereference.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

CVE-2022-49329

RHSA-2024:9315

RHSA-2024_9315

SUSE-SU-2025:1176-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 1301

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49329.json · Exploit
• https://git.kernel.org/stable/c/30fd1b56621e187346f65d01fe34870634b15188 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49329 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49329 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49329 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/3a7a81f4835dfda11f39fdd27586da14331896eb · Patch
• https://osv.dev/vulnerability/CVE-2022-49329 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49329 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49329 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49329 · Vendor Advisory
• https://git.kernel.org/stable/c/b27ee76c74dc831d6e092eaebc2dfc9c0beed1c9 · Patch
• https://git.kernel.org/stable/c/b22fdee17ec62604060fb0fda5e1414b634666e1 · Patch
• https://suse.com/security/cve/CVE-2022-49379 · Note