PT-2025-25876 · Linux+2 · Linux Kernel+2

Published 2022-09-01 · Updated 2025-07-28 · CVE-2022-49950

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 memory corruption issue has been identified in the Linux kernel, specifically in the fastrpc component. The problem occurs when the probe session-duplication overflow check increments the session count even when there are no more available sessions, potentially corrupting memory beyond the fixed-size slab-allocated session array in the fastrpc session alloc() function on open.

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

Exploit

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

BDU:2026-02655

CVE-2022-49950

SUSE-SU-2025:02264-1

SUSE-SU-2025:02308-1

SUSE-SU-2025:02320-1

SUSE-SU-2025:02321-1

SUSE-SU-2025:02322-1

SUSE-SU-2025:02537-1

SUSE-SU-2025:2264-1

SUSE-SU-2025_02264-1

SUSE-SU-2025_02308-1

SUSE-SU-2025_02537-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 602

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49950.json · Exploit
• https://git.kernel.org/stable/c/5cf2a57c7a01a0d7bdecf875a63682f542891b1b · Patch
• https://bdu.fstec.ru/vul/2026-02655 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02308-1 · Vendor Advisory
• https://git.kernel.org/stable/c/d245f43aab2b61195d8ebb64cef7b5a08c590ab4 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49950 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02537-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49950 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49950 · Vendor Advisory
• https://git.kernel.org/stable/c/e0578e603065f120a8759b75e0d6c216c7078a39 · Patch
• https://git.kernel.org/stable/c/f8632b8bb53ebc005d8f24a68a0c1f9678c0e908 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49950 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02264-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49950 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02322-1 · Vendor Advisory