CVE-2026-90366wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV
Updated under an hour ago ()
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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: mt76: mt7996: reserve space for the CSA-abort countdown TLV When a CSA countdown is active, mt7996_mcu_beacon_cntdwn() emits two bss_bcn_cntdwn_tlv entries (the CSA countdown and the CCA-abort BCC), but MT7996_BEACON_UPDATE_SIZE only reserved one. With MBSSID enabled and a near-maximum beacon template the extra 8 bytes could push the offload command past MT7996_MAX_BSS_OFFLOAD_SIZE and trigger skb_over_panic(). Reserve room for both countdown TLVs.
- 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 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 98686cd21624c75a043e96812beadddf4f6f48e5 builds before 1d348f96623ec20d700af7d4dfc00a74da6238ac; from 98686cd21624c75a043e96812beadddf4f6f48e5 before bc1d694a1ffe0062c3adf0db1d64ad54454398ec; 98686cd21624c75a043e96812beadddf4f6f48e5 builds before 45d8896e4cffffb2c6554ccbec6efe7a0d53166f; 98686cd21624c75a043e96812beadddf4f6f48e5 builds before 1a51aff0e048dc5b8252d65808b79939c942d6ec; 98686cd21624c75a043e96812beadddf4f6f48e5 builds before 50c66bab321140c49aa2ed779a3ec9d2f085b458 | CNA record |
References
- https://git.kernel.org/stable/c/1d348f96623ec20d700af7d4dfc00a74da6238ac
- https://git.kernel.org/stable/c/bc1d694a1ffe0062c3adf0db1d64ad54454398ec
- https://git.kernel.org/stable/c/45d8896e4cffffb2c6554ccbec6efe7a0d53166f
- https://git.kernel.org/stable/c/1a51aff0e048dc5b8252d65808b79939c942d6ec
- https://git.kernel.org/stable/c/50c66bab321140c49aa2ed779a3ec9d2f085b458
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.