{"id":"CVE-2026-90367","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER\n\nmt7996_mac_reset_work() parked the tx worker and disabled the RX/TX NAPIs\nbefore taking dev->…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER\n\nmt7996_mac_reset_work() parked the tx worker and disabled the RX/TX NAPIs\nbefore taking dev->…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 27015b6fbcca836c6dbf196afc266e068af4aeec < 906ad486ba5c4933d82e1ebe0685656390a48450","Linux >= 27015b6fbcca836c6dbf196afc266e068af4aeec < 594c4b7f89f9ea75dc9c50b5e4c4296db4a3d701","Linux >= 27015b6fbcca836c6dbf196afc266e068af4aeec < 6190db312b8230813f529f014b26247c6d9800d0","Linux 6.4"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:55.483","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90367","references":[{"url":"https://git.kernel.org/stable/c/594c4b7f89f9ea75dc9c50b5e4c4296db4a3d701","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6190db312b8230813f529f014b26247c6d9800d0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/906ad486ba5c4933d82e1ebe0685656390a48450","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00239,"epssPercentile":0.15215,"ingestedAt":"2026-09-17T16:21:47.810Z","slug":"CVE-2026-90367","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER\n\nmt7996_mac_reset_work() parked the tx worker and disabled the RX/TX NAPIs\nbefore taking dev->mt76.mutex. mt76_worker_disable()/_enable() are plain\nkthread park/unpark, not refcounted, and __mt76_set_channel() toggles the\nsame worker and the MT76_RESET bit under the mutex. An L1 SER racing a\nchannel switch could therefore have the worker unparked and MT76_RESET\ncleared while the reset path resets the DMA rings, corrupting descriptors\nor tokens. Take the mutex before disabling the worker, as mt7915 does.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":207277,"id":"CVE-2026-90367","ts":1789757340335,"field":"cvss","old":null,"new":"8.8"},{"seq":207276,"id":"CVE-2026-90367","ts":1789757340335,"field":"severity","old":"none","new":"high"}]}