{"id":"CVE-2026-90350","summary":"wifi: mt76: reject out-of-range link ids in mt76_vif_link()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: reject out-of-range link ids in mt76_vif_link()\n\nmt76_vif_link() indexes mvif-\u003elink[] without validating link_id, but\ncallers pass mvif-\u003edeflink_id / msta-\u003edeflink_id, which hold\nIEEE80211_LINK_UNSPECIFIED (0xf) until the first link has been added.\nSince IEEE80211_MLD_MAX_NUM_LINKS is 15, that reads one element past the\nend of the array, aliasing mt76_vif_data.offchannel_link.\n\nReachable via mt7996_set_tsf()/mt7996_offset_tsf() and\nmt7996_net_fill_forward_path(). Bounds check link_id and return NULL,\nmatching mt7996_sta_link() and mt7996_sta_link_protected().","modified":"2026-09-19T03:47:28.871788579Z","published":"2026-09-17T16:08:58.226Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90350.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/13f6a9c786022d5213e84d494cc8717c378f5395"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9ba744a28c26eaa5cae930688a22e01888395308"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c1442c345ca8da857fadea1d0797b97347ab6984"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90350.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90350"},{"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":"a9384b36a42afc2d715eb74c19a7ee558f09ef82"},{"fixed":"13f6a9c786022d5213e84d494cc8717c378f5395"},{"fixed":"c1442c345ca8da857fadea1d0797b97347ab6984"},{"fixed":"9ba744a28c26eaa5cae930688a22e01888395308"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90350.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.15.0"},{"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-2026-90350.json"}}],"schema_version":"1.9.0"}