PT-2025-8421 · Linux+2 · Linux Kernel+2

Tomeu Vizoso · Published 2022-05-06 · Updated 2025-04-16 · CVE-2022-49488

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 issue in the Linux kernel has been identified where the mdp5 mixer release function does not check for an error return when acquiring the modeset lock, potentially leading to a NULL dereference error. The mdp5 get global state function may return -EDEADLK when a deadlock is detected. To prevent this, the mdp5 mixer release function should be modified to check for and propagate any error returned.

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:2026-04025

CVE-2022-49488

OESA-2025-1317

OPENSUSE-SU-2025_1263-1

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1263-1

SUSE-SU-2025:1293-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

SUSE-SU-2025_1293-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1530

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49488.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:1263-1 · Vendor Advisory
• https://git.kernel.org/stable/c/883f1d52a57bf51e1d7a80c432345e2c6222477e · Patch
• https://git.kernel.org/stable/c/09bdeedc1fc53e64b8282e1de67752c69e43bdba · Patch
• https://git.kernel.org/stable/c/46e5ce63924a96af452c4fc5ee0bb3b241e1b9f4 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49581 · Security Note
• https://ubuntu.com/security/CVE-2022-49488 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49608 · Security Note
• https://git.kernel.org/stable/c/47e393061049aff6818d1b9fdca7351411a23fc2 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49155 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49315 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-49532 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1293-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49725 · Security Note