CVE-2026-74464net: openvswitch: fix skb leak on flow key update failure during ct
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from ec0d043d05e6e3c0c2fac5de922c800c027c6386 before b77126b2915900f69f9fcf5d624a77c8e6d50c31; from ec0d043d05e6e3c0c2fac5de922c800c027c6386 before 6cc523eaee72c4e91894136cff64946ae9de2cda; from ec0d043d05e6e3c0c2fac5de922c800c027c6386 before 22e0ca88090d89c128078062186b03bb5fdc4f98; from ec0d043d05e6e3c0c2fac5de922c800c027c6386 before 736e972f3f8a304158345223ac6e816166a467ce; from ec0d043d05e6e3c0c2fac5de922c800c027c6386 before e84dfaac50aab45ad8c670da43e3aa1f97bd2a41; from ec0d043d05e6e3c0c2fac5de922c800c027c6386 before e0ba8eaef2a0d02a7a485e6a7157e47272b65cea; from ec0d043d05e6e3c0c2fac5de922c800c027c6386 before 393f3c72600ab6721d732a0ab245bc896c5b28fc; from ec0d043d05e6e3c0c2fac5de922c800c027c6386 before bc62e843bc48f933da765ce47079fd992e535794 | CNA record |
References
- https://git.kernel.org/stable/c/b77126b2915900f69f9fcf5d624a77c8e6d50c31
- https://git.kernel.org/stable/c/6cc523eaee72c4e91894136cff64946ae9de2cda
- https://git.kernel.org/stable/c/22e0ca88090d89c128078062186b03bb5fdc4f98
- https://git.kernel.org/stable/c/736e972f3f8a304158345223ac6e816166a467ce
- https://git.kernel.org/stable/c/e84dfaac50aab45ad8c670da43e3aa1f97bd2a41
- https://git.kernel.org/stable/c/e0ba8eaef2a0d02a7a485e6a7157e47272b65cea
- https://git.kernel.org/stable/c/393f3c72600ab6721d732a0ab245bc896c5b28fc
- https://git.kernel.org/stable/c/bc62e843bc48f933da765ce47079fd992e535794
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.