PT-2025-8186 · Linux+2 · Linux Kernel+2

Jianglei Nie · Published 2022-03-09 · Updated 2025-04-14 · CVE-2022-49258

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A use after free issue has been identified in the Linux kernel, specifically in the crypto subsystem, ccree module. The problem arises when kfree sensitive(ctx p->user.key) frees the ctx p->user.key, but this key is still used afterwards, leading to a use after free condition. This can be mitigated by calling kfree sensitive() after dev dbg() to avoid the use after free.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-10583

CVE-2022-49258

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1336

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49258.json · Exploit
• https://cve.org/CVERecord?id=CVE-2022-49258 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49258 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://git.kernel.org/stable/c/335bf1fc74f775a8255257aa3e33763f2257b676 · Patch
• https://git.kernel.org/stable/c/25c358efee5153dfd240d4e0d3169d5bebe9cacd · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49258 · Vendor Advisory
• https://git.kernel.org/stable/c/cffb5382bd8d3cf21b874ab5b84bf7618932286b · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://git.kernel.org/stable/c/c93017c8d5ebf55a4e453ac7c84cc84cf92ab570 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/3d950c34074ed74d2713c3856ba01264523289e6 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49258 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49258 · Vendor Advisory