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wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP Problem: MCU command timeout while the firmware state is normal, and the firmware keeps showing the error log "ERROR!! NO PAUSE...". Root cause: If the MLD_ID field in the TXD is neither the primary link id nor the secondary link id, it may lead to a firmware busy loop when the third link is in power saving mode. Remap frames directed to a third link to the primary link wcid. Since TX status events and txfree completions carry the wcid the firmware saw, use the remapped wcid for packet id tracking and non-AQL packet accounting as well, while the frame keeps its original link context for addressing, band and OMAC selection.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.18.52, 7.2.6
CVEs
CVE-2026-90376
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 15:17 UTC · Revision 1

Source evidence

wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP

core-osv · Original source

Published 17 Sept 2026, 16:09 UTC

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP Problem: MCU command timeout while the firmware state is normal, and the firmware keeps showing the error log "ERROR!! NO PAUSE...". Root cause: If the MLD_ID field in the TXD is neither the primary link id nor the secondary link id, it may lead to a firmware busy loop when the third link is in power saving mode. Remap frames directed to a third link to the primary link wcid. Since TX status events and txfree completions carry the wcid the firmware saw, use the remapped wcid for packet id tracking and non-AQL packet accounting as well, while the frame keeps its original link context for addressing, band and OMAC selection.

osv:CVE-2026-90376

Kernel

Fixed versions: 6.18.52, 7.2.6

Complete source record
{
  "id": "ef1514e5402a6f8bb05b6e0f45216f70c63115a48687d0294ad6558265229ee0",
  "url": "https://osv.dev/vulnerability/CVE-2026-90376",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP Problem: MCU command timeout while the firmware state is normal, and the firmware keeps showing the error log \"ERROR!! NO PAUSE...\". Root cause: If the MLD_ID field in the TXD is neither the primary link id nor the secondary link id, it may lead to a firmware busy loop when the third link is in power saving mode. Remap frames directed to a third link to the primary link wcid. Since TX status events and txfree completions carry the wcid the firmware saw, use the remapped wcid for packet id tracking and non-AQL packet accounting as well, while the frame keeps its original link context for addressing, band and OMAC selection.",
    "evidence": "osv:CVE-2026-90376",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.52",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-90376",
      "aliases": [
        "CVE-2026-90376"
      ],
      "affected": [
        {
          "ranges": [
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              "type": "GIT",
              "events": [
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                }
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            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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                  "introduced": "6.18.33"
                },
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                  "fixed": "6.18.52"
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          ],
          "versions": [
            "v6.18.51",
            "v6.18.50",
            "v6.18.49",
            "v6.18.48",
            "v6.18.47",
            "v6.18.46",
            "v6.18.45",
            "v6.18.44",
            "v6.18.43",
            "v6.18.42",
            "v6.18.41",
            "v6.18.40",
            "v6.18.39",
            "v6.18.38",
            "v6.18.37",
            "v6.18.36",
            "v6.18.35",
            "v6.18.34",
            "v6.18.33"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90376.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.18.52"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90376.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.646929325Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0a951ff6704db7b46c3f6d03b77e6053122be8ab",
        "https://git.kernel.org/stable/c/5183b9f092fc0041618f38f895bd0ad860c26ca9",
        "https://git.kernel.org/stable/c/ce35ecffc96e6d097d27b6fe30677a2cfe2e0461",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90376.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90376",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90376.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90376",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 496747,
  "published_at": "2026-09-17T16:09:15.361+00:00"
}