CVE-2022-49641
In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec().
Does this matter?
Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.17% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/4762b532ec9539755aab61445d5da6e1926ccb99Patch
- https://git.kernel.org/stable/c/630c76850d554d7140232e71b5d1663e88cffb54Patch
- https://git.kernel.org/stable/c/d335db59f7fb3353f56e52371f1ee796ae9c8f09Patch
- https://git.kernel.org/stable/c/d5d54714e329f646bd7af4994fc427d88ee68936Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.