CVE-2026-68471: wifi: ieee80211: validate MLE common info length
In the Linux kernel, the following vulnerability has been resolved:
wifi: ieee80211: validate MLE common info length
ieee80211mlecommonsize() uses the first common-info octet as the common information length for all known MLE types. However, ieee80211mlesizeok() 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.
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Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-68471?
CVE-2026-68471 has a risk score of 23, indicating a moderate level of severity.
How do I fix CVE-2026-68471?
To resolve CVE-2026-68471, update to the latest version of the Linux kernel that includes the patch for this vulnerability.
What systems are affected by CVE-2026-68471?
CVE-2026-68471 impacts the Linux kernel, specifically affecting implementations using the ieee80211 protocol.
What are the potential consequences of CVE-2026-68471?
Exploiting CVE-2026-68471 could lead to erroneous processing of MLE common info lengths, potentially resulting in system instability.
When was CVE-2026-68471 published?
CVE-2026-68471 was published on August 15, 2026.