{"id":"CVE-2026-90366","summary":"wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV\n\nWhen a CSA countdown is active, mt7996_mcu_beacon_cntdwn() emits two\nbss_bcn_cntdwn_tlv entries (the CSA countdown and the CCA-abort BCC), but\nMT7996_BEACON_UPDATE_SIZE only reserved one. With MBSSID enabled and a\nnear-maximum beacon template the extra 8 bytes could push the offload\ncommand past MT7996_MAX_BSS_OFFLOAD_SIZE and trigger skb_over_panic().\nReserve room for both countdown TLVs.","modified":"2026-09-19T03:47:29.154481124Z","published":"2026-09-17T16:09:08.785Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90366.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1a51aff0e048dc5b8252d65808b79939c942d6ec"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1d348f96623ec20d700af7d4dfc00a74da6238ac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/45d8896e4cffffb2c6554ccbec6efe7a0d53166f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/50c66bab321140c49aa2ed779a3ec9d2f085b458"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bc1d694a1ffe0062c3adf0db1d64ad54454398ec"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90366.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90366"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"98686cd21624c75a043e96812beadddf4f6f48e5"},{"fixed":"1d348f96623ec20d700af7d4dfc00a74da6238ac"},{"fixed":"bc1d694a1ffe0062c3adf0db1d64ad54454398ec"},{"fixed":"45d8896e4cffffb2c6554ccbec6efe7a0d53166f"},{"fixed":"1a51aff0e048dc5b8252d65808b79939c942d6ec"},{"fixed":"50c66bab321140c49aa2ed779a3ec9d2f085b458"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90366.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90366.json"}}],"schema_version":"1.9.0"}