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CVE

CVE-2026-92489

xfrm: Fix skb double-free in xfrm_dev_direct_output()
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CVE

CVE-2026-92489

xfrm: Fix skb double-free in xfrm_dev_direct_output()

In the Linux kernel, the following vulnerability has been resolved:

xfrm: Fix skb double-free in xfrmdevdirect_output()

A return value other than 1 from local_out() means that the skb has been

consumed or its ownership was transferred. xfrmdevdirect_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 xfrmoutputresume().

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://git.kernel.org/stable/c/02deb637e965950148752a304dd1471212dd6470, https://git.kernel.org/stable/c/2aed51fc58d9ce450e2c116efb956160fd06fa02, https://git.kernel.org/stable/c/56a347950e661c1a7f8f31c43a2ea53c2323b6f4, https://git.kernel.org/stable/c/621871b696b108026bf4b44ed4085ffa2102f417, https://git.kernel.org/stable/c/bc9297796bfdcc8d9609236e54519a4f38737aac, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92489.json, https://nvd.nist.gov/vuln/detail/CVE-2026-92489, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00457%
EPSS Percentile
0.38086%
Introduced Version
bfb9b9404a53a72524ce695551755117e9d3deb0,a0395e96831adee8ffa016bf958e4dce9ece656e,5eddd76ec2fd1988f0a3450fde9730b10dd22992,6.6.85,6.12.21,6.13.9,d1d673a5bede3767252cff19c0ab1e5387c6f43f,0,6.7.0,6.13.0,6.14.0
Fix Available
621871b696b108026bf4b44ed4085ffa2102f417,bc9297796bfdcc8d9609236e54519a4f38737aac,2aed51fc58d9ce450e2c116efb956160fd06fa02,6.6.157,6.12.110,6.14,6.18.52,7.2.6,6.12.111-1~deb12u1,6.12.111-1,0:6.12.0-207.111.5.1.el9uek,0:6.12.0-207.111.5.1.el10uek,1:1.0-0.amzn2023,1:6.12.110-135.201.amzn2023

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