{"id":"CVE-2026-90369","summary":"wifi: mt76: fix out-of-bounds access in mmio copy helpers","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: fix out-of-bounds access in mmio copy helpers\n\nmt76_mmio_write_copy() and mt76_mmio_read_copy() iterate up to\nALIGN(len, 4), so a length that is not a multiple of four reads past the\nsource buffer (write_copy) or writes past the destination (read_copy).\nCopy the aligned body in the loop and handle the remaining tail through a\n4-byte bounce buffer, keeping the register access width unchanged.","modified":"2026-09-18T03:48:37.771484647Z","published":"2026-09-17T16:09:10.738Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90369.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6689b4a65e88d7b019e687fa9d6943ca070f3e43"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6ed0fba58bb125a8d8de96e391aa86111166efca"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90369.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90369"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2df00805f7dbaa46b60c682aad0d76270b7ba266"},{"fixed":"6ed0fba58bb125a8d8de96e391aa86111166efca"},{"fixed":"6689b4a65e88d7b019e687fa9d6943ca070f3e43"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90369.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90369.json"}}],"schema_version":"1.9.0"}