CVE-2026-98823wifi: cfg80211: preserve hidden-group beacon IE ownership
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: preserve hidden-group beacon IE ownership A hidden-group probe-response entry borrows its beacon IEs from the group's beacon entry. cfg80211_update_assoc_bss_entry() can pass such an entry to cfg80211_update_known_bss() when merging scan entries after a channel switch. Copying the borrowed beacon_ies into the associated entry gives the same allocation two owners. Releasing the group's beacon entry can then leave the associated entry pointing to freed IEs, which are freed again when that entry is released. Skip beacon IE replacement when the source entry belongs to a hidden group. Preserve probe-response processing, the subsequent metadata updates, and the existing rejection path for conflicting hidden beacon updates.
- 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) | from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before 49b66110a08e4f926f6393e938f226de2750a08b; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before dd7973a4130b0862be38d7e08cc0e874b3d99967; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before 5f27581c176f84b52ec0ab9be7b500c10667ef60; from 0afd425b1b64251f19b5d8d8b49bf56fefbc643f before cc45f313d85533d647ce619326302aad6f797c14 | CNA record |
References
- https://git.kernel.org/stable/c/49b66110a08e4f926f6393e938f226de2750a08b
- https://git.kernel.org/stable/c/dd7973a4130b0862be38d7e08cc0e874b3d99967
- https://git.kernel.org/stable/c/5f27581c176f84b52ec0ab9be7b500c10667ef60
- https://git.kernel.org/stable/c/cc45f313d85533d647ce619326302aad6f797c14
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.