Tracker / CVE-2022-49641
CVE-2022-49641
Medium 4.7
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.4.24 → 4.5 |
| linux | linux_kernel · 4.7.7 → 5.10.132 |
| linux | linux_kernel · 5.11 → 5.15.56 |
| linux | linux_kernel · 5.16 → 5.18.13 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.