CVE-2022-49637

low-risk
Published 2025-02-26

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix a data-race around sysctl_fib_sync_mem. While reading sysctl_fib_sync_mem, it can be changed concurrently. So, we need to add READ_ONCE() to avoid a data-race.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (7)

Affected Vendors

Linux

References (5)

Patch https://git.kernel.org/stable/c/190cd4ff128373271e065afb20f1d2247b3f10c3
Patch https://git.kernel.org/stable/c/418b191d5f223a8cb6cab09eae1f72c04ba6adf2
Patch https://git.kernel.org/stable/c/73318c4b7dbd0e781aaababff17376b2894745c0
Patch https://git.kernel.org/stable/c/7c1acd98fb221dc0d847451b9ab86319f8b9916c
Patch https://git.kernel.org/stable/c/9be8aac91960ea32fd0e874758c9afee665c57d2
26
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 14/34 · Moderate