{"id":"CVE-2026-90376","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP\n\nProblem:\nMCU command timeout while the firmware state is normal, and the\nfirmware keeps showing the error log \"ER…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP\n\nProblem:\nMCU command timeout while the firmware state is normal, and the\nfirmware keeps showing the error log \"ER…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= d6f6b3a65660d183ef33f5a6582fd3b47174fe5a < 5183b9f092fc0041618f38f895bd0ad860c26ca9","Linux >= 85cd5534a3f2ec93e7d88713a77df5b4255520df < 0a951ff6704db7b46c3f6d03b77e6053122be8ab","Linux >= 85cd5534a3f2ec93e7d88713a77df5b4255520df < ce35ecffc96e6d097d27b6fe30677a2cfe2e0461","Linux >= 6.18.33 < 6.18.52","Linux 6.19"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:36.823","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90376","references":[{"url":"https://git.kernel.org/stable/c/0a951ff6704db7b46c3f6d03b77e6053122be8ab","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5183b9f092fc0041618f38f895bd0ad860c26ca9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ce35ecffc96e6d097d27b6fe30677a2cfe2e0461","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90376.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90376"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536742"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90376"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90376"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90376.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.807Z","epss":0.00206,"epssPercentile":0.1065,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-835"],"slug":"CVE-2026-90376","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP\n\nProblem:\nMCU command timeout while the firmware state is normal, and the\nfirmware keeps showing the error log \"ERROR!! NO PAUSE...\".\n\nRoot cause:\nIf the MLD_ID field in the TXD is neither the primary link id nor the\nsecondary link id, it may lead to a firmware busy loop when the third\nlink is in power saving mode.\n\nRemap frames directed to a third link to the primary link wcid. Since\nTX status events and txfree completions carry the wcid the firmware\nsaw, use the remapped wcid for packet id tracking and non-AQL packet\naccounting as well, while the frame keeps its original link context\nfor addressing, band and OMAC selection.\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 · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90376.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225619,"id":"CVE-2026-90376","ts":1792498320515,"field":"cvss","old":null,"new":"5.5"},{"seq":225618,"id":"CVE-2026-90376","ts":1792498320515,"field":"severity","old":"none","new":"medium"}]}