CVE-2022-49641

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Source
https://cve.org/CVERecord?id=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
Downstream
Related
Published
2025-02-26T02:23:48.675Z
Modified
2026-03-12T03:25:32.347708Z
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
sysctl: Fix data races in proc_douintvec().
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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49641.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e7d316a02f683864a12389f8808570e37fb90aa3
Fixed
d5d54714e329f646bd7af4994fc427d88ee68936
Fixed
d335db59f7fb3353f56e52371f1ee796ae9c8f09
Fixed
630c76850d554d7140232e71b5d1663e88cffb54
Fixed
4762b532ec9539755aab61445d5da6e1926ccb99
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
70cd763eb1574cac07138be91f474a661e02d694
Last affected
f4cea51e9a3d536e2ca2b74a958f7c0b4ea733c3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49641.json"