CVE-2022-49590

low-risk
Published 2025-02-26

In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctl_igmp_llm_reports. While reading sysctl_igmp_llm_reports, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. This test can be packed into a helper, so such changes will be in the follow-up series after net is merged into net-next. if (ipv4_is_local_multicast(pmc->multiaddr) && !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))

Do I need to act?

-
0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (8)

Affected Vendors

Linux

References (8)

Mailing List https://git.kernel.org/stable/c/1656ecaddf90e2a070ec2d2404cdae3edf80faca
Mailing List https://git.kernel.org/stable/c/260446eb8e5541402b271343a4516f2b33dec1e4
Mailing List https://git.kernel.org/stable/c/46307adceb67bdf2ec38408dd9cebc378a6b5c46
Mailing List https://git.kernel.org/stable/c/473aad9ad57ff760005377e6f45a2ad4210e08ce
Mailing List https://git.kernel.org/stable/c/a84b4afaca2573ed3aed1f8854aefe3ca5a82e72
Mailing List https://git.kernel.org/stable/c/d77969e7d4ccc26bf1f414a39ef35050a83ba6d5
Mailing List https://git.kernel.org/stable/c/ed876e99ccf417b8bd7fd8408ba5e8b008e46cc8
Mailing List https://git.kernel.org/stable/c/f6da2267e71106474fbc0943dc24928b9cb79119
26
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 14/34 · Moderate