PT-2025-8214 · Linux+2 · Linux Kernel+2

Published 2022-03-10 · Updated 2025-09-22 · CVE-2022-49286

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/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 vulnerability in the Linux kernel has been resolved. The issue was related to the exposure of the chip->tpm mutex in the tpm-space.c file, which could lead to a NULL dereference on the mutex. This occurred because the tpm2 del space() function was missed during the conversion to remove nested TPM operations. Although the race window for this issue was very small, there have been reports of it being exploited in practice.

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:2026-01395

CVE-2022-49286

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1293-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1293-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1488

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49286.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49286 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49286 · Security Note
• https://git.kernel.org/stable/c/95193d12f10a8a088843b25e0f5fe1d83ec6b079 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1293-1 · Vendor Advisory
• https://git.kernel.org/stable/c/5b1d2561a03e534064b51c50c774657833d3d2cf · Patch
• https://git.kernel.org/stable/c/eda1662cce964c8a65bb86321f8d9cfa6e9ceaab · Patch
• https://ubuntu.com/security/CVE-2022-49286 · Vendor Advisory
• https://git.kernel.org/stable/c/ba84f9a48366dcc3cdef978599433efe101dd5bd · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49286 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49286 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49286 · Vendor Advisory