CVE-2026-68471

wifi: ieee80211: validate MLE common info length

State: Published
Severity: 8.8 High
Published: Aug 15, 2026
Updated: Oct 30, 2026
Reserved: Jul 30, 2026

Description

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]

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before bba41664af19b8a07d3d728855088ae80e47a4b3Affected 0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 181b46e76a218e9345ed7c4cf59dfa69278e4a06Affected 0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 22941b5c5c46e61a7053e5f32f260f2bc39da617Affected 0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 90576bd6921a91eb038bffbb4b9467c2dc26aa1dAffected 0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 2b1589fd9a076727a73bfb39e96622a76415ad32Affected 0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 293baeae9b2434a3e432629d7720b5603db2d77eAffected
LinuxLinux	6.0Affected before 6.0Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.114 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before bba41664af19b8a07d3d728855088ae80e47a4b3Affected
0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 181b46e76a218e9345ed7c4cf59dfa69278e4a06Affected
0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 22941b5c5c46e61a7053e5f32f260f2bc39da617Affected
0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 90576bd6921a91eb038bffbb4b9467c2dc26aa1dAffected
0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 2b1589fd9a076727a73bfb39e96622a76415ad32Affected
0f48b8b88aa9ed7b65d7cb55dbc57ec914ddada1 to before 293baeae9b2434a3e432629d7720b5603db2d77eAffected

LinuxLinux

6.0Affected
before 6.0Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.114 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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