CVE-2026-68471

Summary

In 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]

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 < 90576bd6921a91eb038bffbb4b9467c2dc26aa1daffected
LinuxLinux0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 < 2b1589fd9a076727a73bfb39e96622a76415ad32affected
LinuxLinux0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 < 293baeae9b2434a3e432629d7720b5603db2d77eaffected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2-rc4 <= *unaffected

Weaknesses

References