CVE-2022-49641
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49641
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49641.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49641
- Related
- Published
- 2025-02-26T07:01:39Z
- Modified
- 2025-03-12T00:49:55.902199Z
- Downstream
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 procdouintvec() to use READONCE() and WRITEONCE() internally to fix data-races on the sysctl side. For now, procdouintvec() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.
- References
-
- 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://security-tracker.debian.org/tracker/CVE-2022-49641
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.10.136-1
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source