Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix skb leak on flow key update failure during ct ovs_ct_execute() always steals or frees the skb on failure while ovs_flow_key_update() does not. So, if it fails and we return right away, the skb ends up leaked. Fix that by breaking instead and letting the common error handling code at the bottom of the loop to free the skb properly. This is a very unlikely scenario as it requires the packet to become unparseable by applying a set of actions on a previously parseable skb, but should be fixed nevertheless. Reported by Sashiko.
References
- https://git.kernel.org/stable/c/22e0ca88090d89c128078062186b03bb5fdc4f98
- https://git.kernel.org/stable/c/393f3c72600ab6721d732a0ab245bc896c5b28fc
- https://git.kernel.org/stable/c/6cc523eaee72c4e91894136cff64946ae9de2cda
- https://git.kernel.org/stable/c/736e972f3f8a304158345223ac6e816166a467ce
- https://git.kernel.org/stable/c/b77126b2915900f69f9fcf5d624a77c8e6d50c31
- https://git.kernel.org/stable/c/bc62e843bc48f933da765ce47079fd992e535794
- https://git.kernel.org/stable/c/e0ba8eaef2a0d02a7a485e6a7157e47272b65cea
- https://git.kernel.org/stable/c/e84dfaac50aab45ad8c670da43e3aa1f97bd2a41
FAQ
What is CVE-2026-74464?
CVE-2026-74464 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix skb leak on flow key update failure during ct ovs_ct_execute() always steals or frees the skb on failure whi...
How severe is CVE-2026-74464?
CVSS scoring is not yet available for CVE-2026-74464. Check NVD for updates.
Is there a patch for CVE-2026-74464?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.