vulnerability

Huawei EulerOS: CVE-2022-49590: kernel security update

Severity
4
CVSS
(AV:L/AC:M/Au:S/C:N/I:N/A:C)
Published
Jul 10, 2025
Added
Oct 24, 2025
Modified
Oct 24, 2025

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))

Solutions

huawei-euleros-2_0_sp13-upgrade-bpftoolhuawei-euleros-2_0_sp13-upgrade-kernelhuawei-euleros-2_0_sp13-upgrade-kernel-abi-stablelistshuawei-euleros-2_0_sp13-upgrade-kernel-toolshuawei-euleros-2_0_sp13-upgrade-kernel-tools-libshuawei-euleros-2_0_sp13-upgrade-python3-perf
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