FKIE_CVE-2026-90428

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: iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs __tegra241_cmdqv_probe() requests the error IRQ before it has allocated the cmdqv->vintfs array and set cmdqv->num_vintfs. A CMDQV left enabled with a latched error across a kexec fires the IRQ as soon as it is requested, and tegra241_cmdqv_isr() then walks the uninitialized cmdqv->vintfs array. Request the IRQ only after cmdqv->vintfs is allocated and zeroed, so that a latched interrupt firing early runs the ISR against a valid array of NULL slots that it safely skips.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2f627118b668659c6b195ac48beedb1bf8f53368
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1605a56745f22670205f6561df5771bbbb62a99
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b1605a56745f22670205f6561df5771bbbb62a99",
              "status": "affected",
              "version": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943",
              "versionType": "git"
            },
            {
              "lessThan": "2f627118b668659c6b195ac48beedb1bf8f53368",
              "status": "affected",
              "version": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943",
              "versionType": "git"
            },
            {
              "lessThan": "a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d",
              "status": "affected",
              "version": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943",
              "versionType": "git"
            },
            {
              "lessThan": "5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd",
              "status": "affected",
              "version": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "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\niommu/tegra241-cmdqv: Don\u0027t run the error ISR before probe sets up vintfs\n\n__tegra241_cmdqv_probe() requests the error IRQ before it has allocated the\ncmdqv-\u003evintfs array and set cmdqv-\u003enum_vintfs. A CMDQV left enabled with a\nlatched error across a kexec fires the IRQ as soon as it is requested, and\ntegra241_cmdqv_isr() then walks the uninitialized cmdqv-\u003evintfs array.\n\nRequest the IRQ only after cmdqv-\u003evintfs is allocated and zeroed, so that\na latched interrupt firing early runs the ISR against a valid array of NULL\nslots that it safely skips."
    }
  ],
  "id": "CVE-2026-90428",
  "lastModified": "2026-09-17T17:17:47.643",
  "metrics": {},
  "published": "2026-09-17T17:17:47.643",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2f627118b668659c6b195ac48beedb1bf8f53368"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b1605a56745f22670205f6561df5771bbbb62a99"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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