Detections
Analytics
CVE-2026-98251
high
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.
References
https://git.kernel.org/stable/c/d16f089bd700f45d720ce989d5495e1dc3be0cf8
https://git.kernel.org/stable/c/8c9fcc6c33950d3db551af664d1fd3d998bfee56
https://git.kernel.org/stable/c/7ff688aceada1160331a789385ea146f62fbddf7
https://git.kernel.org/stable/c/579d87ec1e1e85729a6cb2c25961e58beb78640c
https://git.kernel.org/stable/c/4371d79ea74407fb992c985b1f94391e35bb8289
https://git.kernel.org/stable/c/3f118c8217c109fd13ca61caa301d72c483897ef
https://git.kernel.org/stable/c/2e6dd889c325abf23821e1459c3ffef59b7f0009
https://git.kernel.org/stable/c/05eab8dced6bf4d3009a6eeee16ddac99047dc83