FKIE_CVE-2026-98606

Vulnerability from fkie_nvd - Published: 2026-10-18 16:17 - Updated: 2026-10-19 10:19
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: release the GEM object on virtio_gpu_vram_create() errors virtio_gpu_vram_create() frees the object with a bare kfree(vram) on both error paths after drm_gem_private_object_init() has run, and on the second one after drm_gem_create_mmap_offset() has linked obj->vma_node into the device's VMA offset manager. The freed object stays in that interval tree, so a later lookup or insertion walks freed memory, and the dma_resv and gpuva lock are never destroyed. Call drm_gem_object_release() before kfree() on both paths.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/036d28db1818af2f9d80db771f5405da84d7732d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/03bdbf182082694ab2add620d85f1a8b8f51bbbc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5118b5fdf1eb9922a0cdd2afd25252081e2d4302
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c2cb3dd1447752b73d4f44d6b7434bc5259bfec
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c8deb77d05bcc8f79e255f669d82ec6ce91be12
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/977c2934064969503cabf98b1135d202ff62822e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a9bb8f8fd5694185c2f71ff91869afb300aab392
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/virtio/virtgpu_vram.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "977c2934064969503cabf98b1135d202ff62822e",
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "versionType": "git"
            },
            {
              "lessThan": "5118b5fdf1eb9922a0cdd2afd25252081e2d4302",
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "versionType": "git"
            },
            {
              "lessThan": "a9bb8f8fd5694185c2f71ff91869afb300aab392",
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "versionType": "git"
            },
            {
              "lessThan": "03bdbf182082694ab2add620d85f1a8b8f51bbbc",
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "versionType": "git"
            },
            {
              "lessThan": "5c2cb3dd1447752b73d4f44d6b7434bc5259bfec",
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "versionType": "git"
            },
            {
              "lessThan": "7c8deb77d05bcc8f79e255f669d82ec6ce91be12",
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "versionType": "git"
            },
            {
              "lessThan": "036d28db1818af2f9d80db771f5405da84d7732d",
              "status": "affected",
              "version": "16845c5d540929d2f4dc845f11fbbb238e69170a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/virtio/virtgpu_vram.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "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\ndrm/virtio: release the GEM object on virtio_gpu_vram_create() errors\n\nvirtio_gpu_vram_create() frees the object with a bare kfree(vram) on\nboth error paths after drm_gem_private_object_init() has run, and on the\nsecond one after drm_gem_create_mmap_offset() has linked obj-\u003evma_node\ninto the device\u0027s VMA offset manager. The freed object stays in that\ninterval tree, so a later lookup or insertion walks freed memory, and\nthe dma_resv and gpuva lock are never destroyed.\n\nCall drm_gem_object_release() before kfree() on both paths."
    }
  ],
  "id": "CVE-2026-98606",
  "lastModified": "2026-10-19T10:19:22.457",
  "metrics": {},
  "published": "2026-10-18T16:17:13.340",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/036d28db1818af2f9d80db771f5405da84d7732d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/03bdbf182082694ab2add620d85f1a8b8f51bbbc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5118b5fdf1eb9922a0cdd2afd25252081e2d4302"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5c2cb3dd1447752b73d4f44d6b7434bc5259bfec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7c8deb77d05bcc8f79e255f669d82ec6ce91be12"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/977c2934064969503cabf98b1135d202ff62822e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a9bb8f8fd5694185c2f71ff91869afb300aab392"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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