{"id":"CVE-2026-68311","summary":"wifi: mt76: mt7925: guard link STA in decap offload","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: guard link STA in decap offload\n\nmt7925_sta_set_decap_offload() iterates over the vif valid_links mask\nwhen updating decap offload state for an MLO station. The station may not\nhave a link STA for every valid link of the vif, so mt792x_sta_to_link()\ncan return NULL for a link that belongs to the vif but not to the station.\n\nThe function currently dereferences mlink before checking whether the\nlink WCID is ready. If mlink is NULL, setting or clearing\nMT_WCID_FLAG_HDR_TRANS dereferences a NULL pointer.\n\nSkip links without a station link before touching mlink-\u003ewcid.","modified":"2026-08-12T04:19:22.387890077Z","published":"2026-08-10T12:02:45.919Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68311.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1e608cae1ba0b4a600b752efa223fd2be376b143"},{"type":"WEB","url":"https://git.kernel.org/stable/c/96ea44f2269f30364cffa054ee3a87e595bef0d4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68311.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68311"},{"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":"b859ad65309a5f1654e8b284de582831fc88e2d8"},{"fixed":"1e608cae1ba0b4a600b752efa223fd2be376b143"},{"fixed":"f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3"},{"fixed":"d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fd"},{"fixed":"96ea44f2269f30364cffa054ee3a87e595bef0d4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68311.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.11.0"},{"fixed":"6.12.101"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68311.json"}}],"schema_version":"1.9.0"}