{"id":"CVE-2026-90369","title":"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 multi…","summary":"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 multi…","severity":"high","vendor":"Linux","product":"Linux","affected":["Linux >= 2df00805f7dbaa46b60c682aad0d76270b7ba266 < 6ed0fba58bb125a8d8de96e391aa86111166efca","Linux >= 2df00805f7dbaa46b60c682aad0d76270b7ba266 < 6689b4a65e88d7b019e687fa9d6943ca070f3e43","Linux 6.19"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:36.030","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90369","references":[{"url":"https://git.kernel.org/stable/c/6689b4a65e88d7b019e687fa9d6943ca070f3e43","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6ed0fba58bb125a8d8de96e391aa86111166efca","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90369.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90369"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536572"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90369"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90369"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90369.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.809Z","epss":0.00198,"epssPercentile":0.09426,"cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"vendor","cwe":["CWE-805"],"slug":"CVE-2026-90369","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90369.json)","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225625,"id":"CVE-2026-90369","ts":1792498323842,"field":"cvss","old":null,"new":"7"},{"seq":225624,"id":"CVE-2026-90369","ts":1792498323842,"field":"severity","old":"none","new":"high"}]}