FKIE_CVE-2026-90351

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: do not attach hif2 WED when the main WED attach failed If the WED attach for the primary PCIe function fails, the probe path still attached wed_hif2 for the secondary function, leaving the device in an inconsistent half-WED configuration that crashes later. The hif2 call also re-enabled hwrro_mode, which the failed primary attach had just turned off. Skip the hif2 WED setup when the primary WED device is not active.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76144da3c6184c7850631ad79d0600ac8bf7649a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c1924332e986019c6bcddf55c843361cccac73f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d566387df8306257d2f703a0d99fd9896400317e
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mmio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "76144da3c6184c7850631ad79d0600ac8bf7649a",
              "status": "affected",
              "version": "83eafc9251d6d30574b629ac637c56d168fcbdd9",
              "versionType": "git"
            },
            {
              "lessThan": "d566387df8306257d2f703a0d99fd9896400317e",
              "status": "affected",
              "version": "83eafc9251d6d30574b629ac637c56d168fcbdd9",
              "versionType": "git"
            },
            {
              "lessThan": "7c1924332e986019c6bcddf55c843361cccac73f",
              "status": "affected",
              "version": "83eafc9251d6d30574b629ac637c56d168fcbdd9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mmio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "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: do not attach hif2 WED when the main WED attach failed\n\nIf the WED attach for the primary PCIe function fails, the probe path\nstill attached wed_hif2 for the secondary function, leaving the device\nin an inconsistent half-WED configuration that crashes later. The hif2\ncall also re-enabled hwrro_mode, which the failed primary attach had\njust turned off.\n\nSkip the hif2 WED setup when the primary WED device is not active."
    }
  ],
  "id": "CVE-2026-90351",
  "lastModified": "2026-09-17T17:17:33.913",
  "metrics": {},
  "published": "2026-09-17T17:17:33.913",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76144da3c6184c7850631ad79d0600ac8bf7649a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7c1924332e986019c6bcddf55c843361cccac73f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d566387df8306257d2f703a0d99fd9896400317e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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