MediumFix available
sysctl: Fix data races in proc_douintvec().
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.132, 5.15.56, 5.18.13
- CVEs
- CVE-2022-49641
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 16:15 UTC · Revision 1
Source evidence
sysctl: Fix data races in proc_douintvec().
core-osv · Original sourcePublished 26 Feb 2025, 02:23 UTC
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.
osv:CVE-2022-49641
Kernel
Fixed versions: 5.10.132, 5.15.56, 5.18.13
Complete source record
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