CVE-2022-49641

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.

The following products are affected by CVE-2022-49641 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-49641.

URL	Resource
https://git.kernel.org/stable/c/4762b532ec9539755aab61445d5da6e1926ccb99
https://git.kernel.org/stable/c/630c76850d554d7140232e71b5d1663e88cffb54
https://git.kernel.org/stable/c/d335db59f7fb3353f56e52371f1ee796ae9c8f09
https://git.kernel.org/stable/c/d5d54714e329f646bd7af4994fc427d88ee68936
https://lore.kernel.org/linux-cve-announce/2025022618-CVE-2022-49641-00e7@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-49641
https://www.cve.org/CVERecord?id=CVE-2022-49641