net/mlx5e: fix swapped IPv6 IPsec policy masks

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Summary

CVECVE-2026-98497
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:17:00 UTC
Updated2026-10-19 10:19:02 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net/mlx5e: fix swapped IPv6 IPsec policy masks IPv6 XFRM policies may use different source and destination prefix lengths. mlx5e_ipsec_policy_mask() builds the corresponding masks independently, but setup_fte_addr6() installs each mask in the opposite address field. When the prefix lengths differ, this makes the source match use the destination prefix and the destination match use the source prefix. The resulting hardware rule can both miss traffic covered by the policy and match traffic outside it. Install each mask in its corresponding match field.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ca7992f52c2cb5ef61fbfa590a2d7c926f290237 3803dc8477f08e0dac4050cafee0de43f32727be git Not specified
CNA Linux Linux affected ca7992f52c2cb5ef61fbfa590a2d7c926f290237 e73f832f0a7b2c6ea45b2124c732d639be97b547 git Not specified
CNA Linux Linux affected ca7992f52c2cb5ef61fbfa590a2d7c926f290237 10de7ed8ef4840da9ca21de4c29578657ac367db git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.18.55 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.9 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e73f832f0a7b2c6ea45b2124c732d639be97b547 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3803dc8477f08e0dac4050cafee0de43f32727be 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/10de7ed8ef4840da9ca21de4c29578657ac367db 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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