Description
In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix skb double-free in xfrm_dev_direct_output() A return value other than 1 from local_out() means that the skb has been consumed or its ownership was transferred. xfrm_dev_direct_output() nevertheless frees the skb on this path, causing a double-free when netfilter drops the packet and invalidating any other owner. Return the local_out() result directly, matching the ownership handling in xfrm_output_resume().
References5
- git.kernel.org/stable/c/02deb637e965950148752a304dd1471212dd6470
- git.kernel.org/stable/c/2aed51fc58d9ce450e2c116efb956160fd06fa02
- git.kernel.org/stable/c/56a347950e661c1a7f8f31c43a2ea53c2323b6f4
- git.kernel.org/stable/c/621871b696b108026bf4b44ed4085ffa2102f417
- git.kernel.org/stable/c/bc9297796bfdcc8d9609236e54519a4f38737aac
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 40 · as of 8 November 2026
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