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CVE-2022-49590

MEDIUM CVSS: 4.7 Published: 2025-02-26 Modified: 2026-06-17

Description

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))

Affected Platforms

Linux Linux Kernel

Weakness Type

CWE-362, CWE-362

References