CVE-2022-49640
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49640
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49640.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49640
- Downstream
- Related
- Published
- 2025-02-26T07:01:39Z
- Modified
- 2025-08-09T20:01:27Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
sysctl: Fix data races in procdouintvecminmax().
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 procdouintvecminmax() to use READONCE() and WRITEONCE() internally to fix data-races on the sysctl side. For now, procdouintvecminmax() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.
- References