CVE-2026-46012
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix memory leaks in rxkad_verify_response() Fix rxkad_verify_response() to free the ticket and the server key under all circumstances by initialising the ticket pointer to NULL and then making all paths through the function after the first allocation has been done go through a single common epilogue that just releases everything - where all the releases skip on a NULL pointer.
Affected versions
Linux kernel versions
5.11
and later are affected. Fixed in
6.6.140,
6.12.86,
6.18.27,
7.0.4,
7.1-rc1
and their respective stable series.
References
The following references provide additional information about CVE-2026-46012 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
PatchKernel patch commithttps://git.kernel.org/stable/c/34f61a07e0cdefaecd3ec03bb5fb22215643678f
-
PatchKernel patch commithttps://git.kernel.org/stable/c/852b9d64cea421336579b2de3d1338dfa677e2dd
-
PatchKernel patch commithttps://git.kernel.org/stable/c/861b9a0a1823bf064a7b810d29502a9ef043f40f
Frequently asked questions
-
What is CVE-2026-46012?
CVE-2026-46012 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.11 onward and has been patched in 6.6.140, 6.12.86, 6.18.27 and others. CVE-2026-46012 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-46012?
Yes — CVE-2026-46012 has been patched. Fixed versions include 6.6.140, 6.12.86, 6.18.27 and others. If you are running Linux kernel 5.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-46012 actively exploited?
No — CVE-2026-46012 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.