wifi: ieee80211: validate MLE common info length

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Summary

CVECVE-2026-68471
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:20:05 UTC
Updated2026-08-15 06:20:05 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: ieee80211: validate MLE common info length ieee80211_mle_common_size() uses the first common-info octet as the common information length for all known MLE types. However, ieee80211_mle_size_ok() only validates that octet for Basic, Probe Request, and TDLS MLEs. Reconfiguration MLEs also skipped the length octet when calculating the minimum common size, and Priority Access MLEs skipped validation of the advertised common information length. Account for the Reconfiguration common-info length octet and validate the advertised common information length for all known MLE types. Keep unknown-type handling unchanged. [remove now misleading comment]

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 90576bd6921a91eb038bffbb4b9467c2dc26aa1d git Not specified
CNA Linux Linux affected 0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 2b1589fd9a076727a73bfb39e96622a76415ad32 git Not specified
CNA Linux Linux affected 0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 293baeae9b2434a3e432629d7720b5603db2d77e git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/90576bd6921a91eb038bffbb4b9467c2dc26aa1d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/293baeae9b2434a3e432629d7720b5603db2d77e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2b1589fd9a076727a73bfb39e96622a76415ad32 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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