CVE-2022-49641
sysctl: Fix data races in proc_douintvec().
CVSS Score
4.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 26, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
e7d316a02f683864a12389f8808570e37fb90aa3 < d5d54714e329f646bd7af4994fc427d88ee68936 e7d316a02f683864a12389f8808570e37fb90aa3 < d335db59f7fb3353f56e52371f1ee796ae9c8f09 e7d316a02f683864a12389f8808570e37fb90aa3 < 630c76850d554d7140232e71b5d1663e88cffb54 e7d316a02f683864a12389f8808570e37fb90aa3 < 4762b532ec9539755aab61445d5da6e1926ccb99 70cd763eb1574cac07138be91f474a661e02d694 f4cea51e9a3d536e2ca2b74a958f7c0b4ea733c3
Linux / Linux
4.8
References
git.kernel.org: https://git.kernel.org/stable/c/d5d54714e329f646bd7af4994fc427d88ee68936 git.kernel.org: https://git.kernel.org/stable/c/d335db59f7fb3353f56e52371f1ee796ae9c8f09 git.kernel.org: https://git.kernel.org/stable/c/630c76850d554d7140232e71b5d1663e88cffb54 git.kernel.org: https://git.kernel.org/stable/c/4762b532ec9539755aab61445d5da6e1926ccb99