PT-2025-37513 · Linux+1 · Linux Kernel+1

Published 2022-12-04 · Updated 2025-09-15 · CVE-2022-50259

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 race condition exists in the sock map free() function within the kernel's bpf and sockmap implementation. Specifically, sock map free() calls release sock(sk) without holding a reference to the socket, potentially leading to a use-after-free condition. This issue was identified through testing and is similar to a previously addressed problem in sock hash free().

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

Exploit

Use After Free

Race Condition

Weakness Enumeration

CWE-416

CWE-362

Related Identifiers

BDU:2026-05954

CVE-2022-50259

Affected Products

Astra Linux

Linux Kernel

References · 24

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50259.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50259 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50259 · Security Note
• https://git.kernel.org/stable/c/be719496ae6a7fc325e9e5056a52f63ebc84cc0c · Patch
• https://git.kernel.org/stable/c/4cabc3af4a6f36c222fecb15858c1060e59218e7 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-50259 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50259 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50259 · Vendor Advisory
• https://git.kernel.org/stable/c/0a182f8d607464911756b4dbef5d6cad8de22469 · Patch
• https://bdu.fstec.ru/vul/2026-05954 · Security Note
• https://git.kernel.org/stable/c/e8b2b392a646bf5cb9413c1cc7a39d99c1b65a62 · Patch
• https://git.kernel.org/stable/c/5c3568166129bc73fd6b37748d2d8f95cd8f22f3 · Patch
• https://git.kernel.org/stable/c/a443c55d96dede82a724df6e70a318ad15c199e1 · Patch
• https://cve.org/CVERecord?id=CVE-2022-50259 · Security Note
• https://ubuntu.com/security/CVE-2022-50259 · Vendor Advisory