FKIE_CVE-2026-90376

Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-09-17 17:17
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0a951ff6704db7b46c3f6d03b77e6053122be8ab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5183b9f092fc0041618f38f895bd0ad860c26ca9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce35ecffc96e6d097d27b6fe30677a2cfe2e0461
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mac.c",
            "drivers/net/wireless/mediatek/mt76/mt7996/main.c",
            "drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5183b9f092fc0041618f38f895bd0ad860c26ca9",
              "status": "affected",
              "version": "d6f6b3a65660d183ef33f5a6582fd3b47174fe5a",
              "versionType": "git"
            },
            {
              "lessThan": "0a951ff6704db7b46c3f6d03b77e6053122be8ab",
              "status": "affected",
              "version": "85cd5534a3f2ec93e7d88713a77df5b4255520df",
              "versionType": "git"
            },
            {
              "lessThan": "ce35ecffc96e6d097d27b6fe30677a2cfe2e0461",
              "status": "affected",
              "version": "85cd5534a3f2ec93e7d88713a77df5b4255520df",
              "versionType": "git"
            },
            {
              "lessThan": "6.18.52",
              "status": "affected",
              "version": "6.18.33",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mac.c",
            "drivers/net/wireless/mediatek/mt76/mt7996/main.c",
            "drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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 \"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."
    }
  ],
  "id": "CVE-2026-90376",
  "lastModified": "2026-09-17T17:17:36.823",
  "metrics": {},
  "published": "2026-09-17T17:17:36.823",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0a951ff6704db7b46c3f6d03b77e6053122be8ab"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5183b9f092fc0041618f38f895bd0ad860c26ca9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ce35ecffc96e6d097d27b6fe30677a2cfe2e0461"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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