CVE-2026-74464

net: openvswitch: fix skb leak on flow key update failure during ct

State: Published
Severity: Not scored
Published: Aug 15, 2026
Updated: Aug 19, 2026
Reserved: Aug 15, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before b77126b2915900f69f9fcf5d624a77c8e6d50c31Affected ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before 6cc523eaee72c4e91894136cff64946ae9de2cdaAffected ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before 22e0ca88090d89c128078062186b03bb5fdc4f98Affected ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before 736e972f3f8a304158345223ac6e816166a467ceAffected ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before e84dfaac50aab45ad8c670da43e3aa1f97bd2a41Affected ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before e0ba8eaef2a0d02a7a485e6a7157e47272b65ceaAffected ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before 393f3c72600ab6721d732a0ab245bc896c5b28fcAffected ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before bc62e843bc48f933da765ce47079fd992e535794Affected
LinuxLinux	4.3Affected before 4.3Not affected 5.10.265 through 5.10.Not affected 5.15.216 through 5.15.Not affected 6.1.183 through 6.1.Not affected 6.6.151 through 6.6.Not affected 6.12.103 through 6.12.Not affected 6.18.44 through 6.18.Not affected 7.1.8 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before b77126b2915900f69f9fcf5d624a77c8e6d50c31Affected
ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before 6cc523eaee72c4e91894136cff64946ae9de2cdaAffected
ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before 22e0ca88090d89c128078062186b03bb5fdc4f98Affected
ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before 736e972f3f8a304158345223ac6e816166a467ceAffected
ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before e84dfaac50aab45ad8c670da43e3aa1f97bd2a41Affected
ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before e0ba8eaef2a0d02a7a485e6a7157e47272b65ceaAffected
ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before 393f3c72600ab6721d732a0ab245bc896c5b28fcAffected
ec0d043d05e6e3c0c2fac5de922c800c027c6386 to before bc62e843bc48f933da765ce47079fd992e535794Affected

LinuxLinux

4.3Affected
before 4.3Not affected
5.10.265 through 5.10.*Not affected
5.15.216 through 5.15.*Not affected
6.1.183 through 6.1.*Not affected
6.6.151 through 6.6.*Not affected
6.12.103 through 6.12.*Not affected
6.18.44 through 6.18.*Not affected
7.1.8 through 7.1.*Not affected
7.2 and laterNot affected

References

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