PT-2025-8512 · Linux+4 · Linux Kernel+4

Kuniyuki Iwashima · Published 2022-01-01 · Updated 2026-03-14 · CVE-2022-49579

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 data-race issue exists in the Linux kernel related to the sysctl fib multipath hash policy. The issue occurs because the value of sysctl fib multipath hash policy can be changed concurrently while it is being read, potentially leading to inconsistent results. To address this, the use of READ ONCE() is necessary for readers of sysctl fib multipath hash policy.

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

Exploit

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

ALSA-2025_16880

CVE-2022-49579

RHSA-2023:2458

RHSA-2023_2458

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

Debian

Linux Kernel

Red Hat

Suse

References · 1329

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49579.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2022-49579 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49579 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49579 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49579 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/21fb844bc1dc1461f5038d655aa1a14f39e13049 · Patch
• https://git.kernel.org/stable/c/7998c12a08c97cc26660532c9f90a34bd7d8da5a · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49579 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2022-49579 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://git.kernel.org/stable/c/918ee6592ab9a2ff5316d06cfd4aaef60ccabec6 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49579 · Vendor Advisory