CVE-2026-90366
wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
98686cd21624c75a043e96812beadddf4f6f48e5 < 1d348f96623ec20d700af7d4dfc00a74da6238ac 98686cd21624c75a043e96812beadddf4f6f48e5 < bc1d694a1ffe0062c3adf0db1d64ad54454398ec 98686cd21624c75a043e96812beadddf4f6f48e5 < 45d8896e4cffffb2c6554ccbec6efe7a0d53166f 98686cd21624c75a043e96812beadddf4f6f48e5 < 1a51aff0e048dc5b8252d65808b79939c942d6ec 98686cd21624c75a043e96812beadddf4f6f48e5 < 50c66bab321140c49aa2ed779a3ec9d2f085b458
Linux / Linux
6.2
References
git.kernel.org: https://git.kernel.org/stable/c/1d348f96623ec20d700af7d4dfc00a74da6238ac git.kernel.org: https://git.kernel.org/stable/c/bc1d694a1ffe0062c3adf0db1d64ad54454398ec git.kernel.org: https://git.kernel.org/stable/c/45d8896e4cffffb2c6554ccbec6efe7a0d53166f git.kernel.org: https://git.kernel.org/stable/c/1a51aff0e048dc5b8252d65808b79939c942d6ec git.kernel.org: https://git.kernel.org/stable/c/50c66bab321140c49aa2ed779a3ec9d2f085b458