PT-2025-8377 · Linux+6 · Linux Kernel+6
Published
2022-01-01
·
Updated
2026-03-14
·
CVE-2022-49443
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to the version that includes the fix for the data-race around ep->rdllist
Description
A data-race issue exists in the Linux kernel, specifically around ep->rdllist. The
ep poll() function calls ep events available() without holding a lock and checks if ep->rdllist is empty by list empty careful(), which reads rdllist->prev. This requires protection to avoid store/load-tearing. The issue was reported by the Kernel Concurrency Sanitizer.Recommendations
For Linux kernel versions prior to the fixed version, consider applying the patch that fixes the data-race around ep->rdllist to resolve the issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Race Condition
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Debian
Linux Kernel
Red Hat
Rocky Linux
Suse