wifi: mac80211: remove station if connection prep fails

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Summary

CVECVE-2026-46125
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 10:16:28 UTC
Updated2026-05-28 13:44:01 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes. This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 81151ce462e533551f3284bfdb8e0f461c9220e6 fe75fa1ac9a92990f7fc3d34b17808fd933071b2 git Not specified
CNA Linux Linux affected 81151ce462e533551f3284bfdb8e0f461c9220e6 afcbaed89cdc1a001b43270cbf5394bb4804270a git Not specified
CNA Linux Linux affected 81151ce462e533551f3284bfdb8e0f461c9220e6 9e28654f79f443bca9b29ff3ae7cf18abfba58a0 git Not specified
CNA Linux Linux affected 81151ce462e533551f3284bfdb8e0f461c9220e6 1c2b72ea89882aeb948340498391e69c58d466f1 git Not specified
CNA Linux Linux affected 81151ce462e533551f3284bfdb8e0f461c9220e6 283fc9e44ff5b5ac967439b4951b80bd4299f4e4 git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.6.140 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.88 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.30 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.7 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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