bpf: Disable xfrm_decode_session hook attachment

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80669
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 08:16:52 UTC
Updated2026-08-28 08:16:52 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: bpf: Disable xfrm_decode_session hook attachment BPF LSM programs can currently attach to xfrm_decode_session(). That hook may return an error, but security_skb_classify_flow() calls it from a void path and triggers BUG_ON() if an error is returned. Disable BPF attachment to the hook to prevent a BPF LSM program from turning packet classification into a full panic.

Risk And Classification

EPSS: 0.001720000 probability, percentile 0.067750000 (date 2026-08-30)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 aa265d47308775c5501073b08133623bcb5421f9 git Not specified
CNA Linux Linux affected 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 6b44c6660aa1c9b843e450a623ac4a8484919dce git Not specified
CNA Linux Linux affected 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 4ae780d173ef40d4f7cb76935dc2d55fbf380009 git Not specified
CNA Linux Linux affected 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 49fa1be621dde8f526d36e5791aded8fafda1e9c git Not specified
CNA Linux Linux affected 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9 git Not specified
CNA Linux Linux affected 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 12091470c6b4c1c14b2de12dcbae2ada6cb6d20b git Not specified
CNA Linux Linux affected 5.7 Not specified
CNA Linux Linux unaffected 5.7 semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/aa265d47308775c5501073b08133623bcb5421f9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4ae780d173ef40d4f7cb76935dc2d55fbf380009 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/12091470c6b4c1c14b2de12dcbae2ada6cb6d20b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6b44c6660aa1c9b843e450a623ac4a8484919dce 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/49fa1be621dde8f526d36e5791aded8fafda1e9c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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