CVE-2022-49634

In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data-races in proc_dou8vec_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_dou8vec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_dou8vec_minmax() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.

The following products are affected by CVE-2022-49634 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-49634.

URL	Resource
https://git.kernel.org/stable/c/5f776daef0b5354615ec4b4234cd9539ca05f273
https://git.kernel.org/stable/c/7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18
https://git.kernel.org/stable/c/e58b02e445463065b4078bf621561da75197853f
https://git.kernel.org/stable/c/f177b382c33900d0e5a9766493c11a1074076f78
https://lore.kernel.org/linux-cve-announce/2025022617-CVE-2022-49634-4a89@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-49634
https://www.cve.org/CVERecord?id=CVE-2022-49634