CVE-2026-98704wifi: mac80211: keep fallback association elements alive
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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]
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | 5023b14cf4df4d22e1a80738167f3438c9e62e5f builds before 1d9644753d46c86b4e5c05bd6d9d35339ea27331; from 5023b14cf4df4d22e1a80738167f3438c9e62e5f before d0183cd1f6a2dba9e63be20af2f65093c9c8d121; from 5023b14cf4df4d22e1a80738167f3438c9e62e5f before 0878594c5806dd29fa5e16cc026ce19158afdad2; from 5023b14cf4df4d22e1a80738167f3438c9e62e5f before a10a2f80476d166fd81c361ec0319493671b694e | CNA record |
References
- https://git.kernel.org/stable/c/1d9644753d46c86b4e5c05bd6d9d35339ea27331
- https://git.kernel.org/stable/c/d0183cd1f6a2dba9e63be20af2f65093c9c8d121
- https://git.kernel.org/stable/c/0878594c5806dd29fa5e16cc026ce19158afdad2
- https://git.kernel.org/stable/c/a10a2f80476d166fd81c361ec0319493671b694e
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.