PT-2025-8574 · Linux+3 · Linux Kernel+3

Kuniyuki Iwashima · Published 2023-05-09 · Updated 2025-04-16 · CVE-2022-49641

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 in the Linux kernel's sysctl has been identified, where a sysctl variable is accessed concurrently, leading to potential data-race issues. The problem arises because all readers and writers need basic protection to avoid load/store-tearing. The issue is resolved by modifying the proc douintvec() function to use READ ONCE() and WRITE ONCE() internally, thus fixing data-races on the sysctl side.

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

CVE-2022-49641

OPENSUSE-SU-2025_1263-1

RHSA-2023:2458

RHSA-2023_2458

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1263-1

SUSE-SU-2025:1293-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

SUSE-SU-2025_1293-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 1492

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49641.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49641 · Vendor Advisory
• https://git.kernel.org/stable/c/4762b532ec9539755aab61445d5da6e1926ccb99 · Patch
• https://ubuntu.com/security/CVE-2022-49641 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49641 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49641 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:1293-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/d5d54714e329f646bd7af4994fc427d88ee68936 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49641 · Security Note
• https://git.kernel.org/stable/c/630c76850d554d7140232e71b5d1663e88cffb54 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1194-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49641 · Vendor Advisory