CVE-2022-49590
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))
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-49590
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2022-49590.html
Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2023:2458
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 5.18.16-1 |
| debian | bullseye | fixed | 5.10.136-1 |
| debian | forky | fixed | 5.18.16-1 |
| debian | sid | fixed | 5.18.16-1 |
| debian | trixie | fixed | 5.18.16-1 |
References
Verify integrity in audit chain (admin only). AS-IS.