CVE-2026-98251
Description
In the Linux kernel, the following vulnerability has been resolved: openvswitch: avoid reallocating confirmed conntrack labels ovs_ct_get_conn_labels() adds the labels extension when a conntrack entry does not have one. Confirmed conntracks can be read locklessly, so adding an extension may reallocate and free the extension block while another CPU accesses it. Only add the extension for unconfirmed conntracks. A confirmed conntrack without labels now fails the caller's label operation instead of reallocating its extension storage.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/05eab8dced6bf4d3009a6eeee16ddac99047dc83
- https://git.kernel.org/stable/c/2e6dd889c325abf23821e1459c3ffef59b7f0009
- https://git.kernel.org/stable/c/3f118c8217c109fd13ca61caa301d72c483897ef
- https://git.kernel.org/stable/c/4371d79ea74407fb992c985b1f94391e35bb8289
- https://git.kernel.org/stable/c/579d87ec1e1e85729a6cb2c25961e58beb78640c
- https://git.kernel.org/stable/c/7ff688aceada1160331a789385ea146f62fbddf7
- https://git.kernel.org/stable/c/8c9fcc6c33950d3db551af664d1fd3d998bfee56
- https://git.kernel.org/stable/c/d16f089bd700f45d720ce989d5495e1dc3be0cf8
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.