CVE-2022-49641 - CVE House
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Status published Unknown CVE-2022-49641

sysctl: Fix data races in proc_douintvec().

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec(). A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_douintvec() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
e7d316a02f683864a12389f8808570e37fb90aa3, 70cd763eb1574cac07138be91f474a661e02d694, f4cea51e9a3d536e2ca2b74a958f7c0b4ea733c3, 4.4.24, 4.7.7, 4.8, 0, 5.10.132, 5.15.56, 5.18.13, 5.19

Timeline

Official Publish: February 26th, 2025
Last Modified: May 23rd, 2026
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.