CVE-2022-49640
sysctl: Fix data races in proc_douintvec_minmax().
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_minmax(). 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_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_douintvec_minmax() 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 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new medium vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
61d9b56a89208d8cccd0b4cfec7e6959717e16e3 < e3a2144b3b6bf9ecafd91087c8b8b48171ec19df 61d9b56a89208d8cccd0b4cfec7e6959717e16e3 < 40e0477a7371d101c55b69d9c32a7a1ed82ab5ea 61d9b56a89208d8cccd0b4cfec7e6959717e16e3 < b60eddf98b9716651069dfda296c91311a7a6293 61d9b56a89208d8cccd0b4cfec7e6959717e16e3 < 2d3b559df3ed39258737789aae2ae7973d205bc1
Linux / Linux
4.13
References
git.kernel.org: https://git.kernel.org/stable/c/e3a2144b3b6bf9ecafd91087c8b8b48171ec19df git.kernel.org: https://git.kernel.org/stable/c/40e0477a7371d101c55b69d9c32a7a1ed82ab5ea git.kernel.org: https://git.kernel.org/stable/c/b60eddf98b9716651069dfda296c91311a7a6293 git.kernel.org: https://git.kernel.org/stable/c/2d3b559df3ed39258737789aae2ae7973d205bc1