UNKNOWN NVD
CVE-2026-98704
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: keep fallback association elements alive Associating to a non-transmitted
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: keep fallback association elements alive
Associating to a non-transmitted MBSSID profile reads freed memory while
determining the operating channel and applying HT capabilities.
When an association response omits WMM, HT, or VHT information,
ieee80211_assoc_config_link() parses the cached BSS IEs and copies the
missing element pointers out of that fallback parse. For a
non-transmitted MBSSID profile those pointers refer to merged-profile
storage owned by the parse object, and the fallback block frees that
object at its end. The copied pointers are used afterwards to determine
the operating channel, configure bandwidth, and apply HT capabilities.
Keep the fallback parse result alive until association setup finishes.
[reorder variable declaration]
References
- https://git.kernel.org/stable/c/0878594c5806dd29fa5e16cc026ce19158afdad2
- https://git.kernel.org/stable/c/1d9644753d46c86b4e5c05bd6d9d35339ea27331
- https://git.kernel.org/stable/c/a10a2f80476d166fd81c361ec0319493671b694e
- https://git.kernel.org/stable/c/d0183cd1f6a2dba9e63be20af2f65093c9c8d121
This unknown severity vulnerability was published on 2026-10-18 via NVD.
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