{"id":"CVE-2026-90366","revision":"5cb11a3d9b22447db86a1c0be9d88bae","records":[{"revision":"5cb11a3d9b22447db86a1c0be9d88bae","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90366","aliases":[],"title":"wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV","description":"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.","state":0,"publishedAt":"2026-09-17T16:09:08.785+00:00","modifiedAt":"2026-10-19T09:02:25.401+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/mediatek/mt76/mt7996/mcu.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"98686cd21624c75a043e96812beadddf4f6f48e5\",\n                            \"lessThan\": \"1d348f96623ec20d700af7d4dfc00a74da6238ac\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"98686cd21624c75a043e96812beadddf4f6f48e5\",\n                            \"lessThan\": \"bc1d694a1ffe0062c3adf0db1d64ad54454398ec\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"98686cd21624c75a043e96812beadddf4f6f48e5\",\n                            \"lessThan\": \"45d8896e4cffffb2c6554ccbec6efe7a0d53166f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"98686cd21624c75a043e96812beadddf4f6f48e5\",\n                            \"lessThan\": \"1a51aff0e048dc5b8252d65808b79939c942d6ec\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"98686cd21624c75a043e96812beadddf4f6f48e5\",\n                            \"lessThan\": \"50c66bab321140c49aa2ed779a3ec9d2f085b458\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/mediatek/mt76/mt7996/mcu.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90366","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90366","identifiers":["CVE-2026-90366"]},"retained":false,"historicalAffected":[]}],"coverage":[]}