CVE-2022-49579

ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.

State: Published
Severity: 4.7 Medium
Published: Feb 26, 2025
Updated: May 11, 2026
Reserved: Feb 26, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.

While reading sysctl_fib_multipath_hash_policy, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

Scores

CVSS	Score	Vector	Source
3.1	4.7 Medium	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Affected Products

Product	Versions
LinuxLinux	bf4e0a3db97eb882368fd82980b3b1fa0b5b9778 to before 21fb844bc1dc1461f5038d655aa1a14f39e13049Affected bf4e0a3db97eb882368fd82980b3b1fa0b5b9778 to before 918ee6592ab9a2ff5316d06cfd4aaef60ccabec6Affected bf4e0a3db97eb882368fd82980b3b1fa0b5b9778 to before 7998c12a08c97cc26660532c9f90a34bd7d8da5aAffected
LinuxLinux	4.12Affected before 4.12Not affected 5.15.58 through 5.15.Not affected 5.18.15 through 5.18.Not affected 5.19 and laterNot affected

References

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