Vulnerability-Lookup

CVE-2026-80888 (GCVE-0-2026-80888)

Vulnerability from cvelistv5 – Published: 2026-09-04 17:11 – Updated: 2026-09-04 17:11

Title

drm/vmwgfx: drop dma_buf reference on foreign-fd prime import

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: drop dma_buf reference on foreign-fd prime import ttm_prime_fd_to_handle() returns -ENOSYS when the imported fd's dma_buf->ops do not match the ttm_object_device's ops, but does so without releasing the reference acquired by dma_buf_get(). Any unprivileged renderD client passing a non-vmwgfx prime fd through the DRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per call and indefinitely pins the foreign exporter's GEM resources. Funnel the error path through the existing dma_buf_put() so the reference is always dropped.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/619c3cfa88e09603a…
https://git.kernel.org/stable/c/c1c22fca0a0896a45…
https://git.kernel.org/stable/c/a1e972fa94c3a8069…
https://git.kernel.org/stable/c/a8434b145b1e46794…
https://git.kernel.org/stable/c/4df39eb99bb47d1f2…
https://git.kernel.org/stable/c/f739416dc555fa205…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 65981f7681abdf92b25942222b629b9c512d0705 , < 619c3cfa88e09603a13d918f754808db2dda7057 (git) Affected: 65981f7681abdf92b25942222b629b9c512d0705 , < c1c22fca0a0896a452a7cb92422d67babd65b4be (git) Affected: 65981f7681abdf92b25942222b629b9c512d0705 , < a1e972fa94c3a8069e022c67b9d97c7aa7b05293 (git) Affected: 65981f7681abdf92b25942222b629b9c512d0705 , < a8434b145b1e467940334c58c00af241e9494c5f (git) Affected: 65981f7681abdf92b25942222b629b9c512d0705 , < 4df39eb99bb47d1f24d1952c23b21b10988356bf (git) Affected: 65981f7681abdf92b25942222b629b9c512d0705 , < f739416dc555fa205a785e5135d73fa39b26f35d (git)	guessed
Linux	Linux	Affected: 3.13 Unaffected: 0 , < 3.13 (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.151 , ≤ 6.6.* (semver) Unaffected: 6.12.103 , ≤ 6.12.* (semver) Unaffected: 6.18.44 , ≤ 6.18.* (semver) Unaffected: 7.1.8 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/vmwgfx/ttm_object.c"
          ],
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          "vendor": "Linux",
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            },
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              "versionType": "git"
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          ]
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        {
          "defaultStatus": "affected",
          "product": "Linux",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "version": "3.13"
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            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.151",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.12.103",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "3.13",
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                {
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                  "versionStartIncluding": "3.13",
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              "operator": "OR"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: drop dma_buf reference on foreign-fd prime import\n\nttm_prime_fd_to_handle() returns -ENOSYS when the imported fd\u0027s\ndma_buf-\u003eops do not match the ttm_object_device\u0027s ops, but does so\nwithout releasing the reference acquired by dma_buf_get().  Any\nunprivileged renderD client passing a non-vmwgfx prime fd through the\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per\ncall and indefinitely pins the foreign exporter\u0027s GEM resources.\n\nFunnel the error path through the existing dma_buf_put() so the\nreference is always dropped."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T17:11:04.975Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293"
        },
        {
          "url": "https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f"
        },
        {
          "url": "https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d"
        }
      ],
      "title": "drm/vmwgfx: drop dma_buf reference on foreign-fd prime import",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80888",
    "datePublished": "2026-09-04T17:11:04.975Z",
    "dateReserved": "2026-08-26T14:34:25.799Z",
    "dateUpdated": "2026-09-04T17:11:04.975Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-80888\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-09-04T18:17:56.787\",\"lastModified\":\"2026-09-04T18:17:56.787\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/vmwgfx: drop dma_buf reference on foreign-fd prime import\\n\\nttm_prime_fd_to_handle() returns -ENOSYS when the imported fd\u0027s\\ndma_buf-\u003eops do not match the ttm_object_device\u0027s ops, but does so\\nwithout releasing the reference acquired by dma_buf_get().  Any\\nunprivileged renderD client passing a non-vmwgfx prime fd through the\\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per\\ncall and indefinitely pins the foreign exporter\u0027s GEM resources.\\n\\nFunnel the error path through the existing dma_buf_put() so the\\nreference is always dropped.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/vmwgfx/ttm_object.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"65981f7681abdf92b25942222b629b9c512d0705\",\"lessThan\":\"619c3cfa88e09603a13d918f754808db2dda7057\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"65981f7681abdf92b25942222b629b9c512d0705\",\"lessThan\":\"c1c22fca0a0896a452a7cb92422d67babd65b4be\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"65981f7681abdf92b25942222b629b9c512d0705\",\"lessThan\":\"a1e972fa94c3a8069e022c67b9d97c7aa7b05293\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"65981f7681abdf92b25942222b629b9c512d0705\",\"lessThan\":\"a8434b145b1e467940334c58c00af241e9494c5f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"65981f7681abdf92b25942222b629b9c512d0705\",\"lessThan\":\"4df39eb99bb47d1f24d1952c23b21b10988356bf\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"65981f7681abdf92b25942222b629b9c512d0705\",\"lessThan\":\"f739416dc555fa205a785e5135d73fa39b26f35d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/vmwgfx/ttm_object.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.13\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.13\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.183\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.151\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.103\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.44\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.8\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/619c3cfa88e09603a13d918f754808db2dda7057\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c1c22fca0a0896a452a7cb92422d67babd65b4be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}

FKIE_CVE-2026-80888

Vulnerability from fkie_nvd - Published: 2026-09-04 18:17 - Updated: 2026-09-04 18:17

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/619c3cfa88e09603a13d918f754808db2dda7057
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c1c22fca0a0896a452a7cb92422d67babd65b4be
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/vmwgfx/ttm_object.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "619c3cfa88e09603a13d918f754808db2dda7057",
              "status": "affected",
              "version": "65981f7681abdf92b25942222b629b9c512d0705",
              "versionType": "git"
            },
            {
              "lessThan": "c1c22fca0a0896a452a7cb92422d67babd65b4be",
              "status": "affected",
              "version": "65981f7681abdf92b25942222b629b9c512d0705",
              "versionType": "git"
            },
            {
              "lessThan": "a1e972fa94c3a8069e022c67b9d97c7aa7b05293",
              "status": "affected",
              "version": "65981f7681abdf92b25942222b629b9c512d0705",
              "versionType": "git"
            },
            {
              "lessThan": "a8434b145b1e467940334c58c00af241e9494c5f",
              "status": "affected",
              "version": "65981f7681abdf92b25942222b629b9c512d0705",
              "versionType": "git"
            },
            {
              "lessThan": "4df39eb99bb47d1f24d1952c23b21b10988356bf",
              "status": "affected",
              "version": "65981f7681abdf92b25942222b629b9c512d0705",
              "versionType": "git"
            },
            {
              "lessThan": "f739416dc555fa205a785e5135d73fa39b26f35d",
              "status": "affected",
              "version": "65981f7681abdf92b25942222b629b9c512d0705",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/vmwgfx/ttm_object.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.13"
            },
            {
              "lessThan": "3.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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/vmwgfx: drop dma_buf reference on foreign-fd prime import\n\nttm_prime_fd_to_handle() returns -ENOSYS when the imported fd\u0027s\ndma_buf-\u003eops do not match the ttm_object_device\u0027s ops, but does so\nwithout releasing the reference acquired by dma_buf_get().  Any\nunprivileged renderD client passing a non-vmwgfx prime fd through the\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per\ncall and indefinitely pins the foreign exporter\u0027s GEM resources.\n\nFunnel the error path through the existing dma_buf_put() so the\nreference is always dropped."
    }
  ],
  "id": "CVE-2026-80888",
  "lastModified": "2026-09-04T18:17:56.787",
  "metrics": {},
  "published": "2026-09-04T18:17:56.787",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/619c3cfa88e09603a13d918f754808db2dda7057"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c1c22fca0a0896a452a7cb92422d67babd65b4be"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

GHSA-3R89-CXVF-8CX5

Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: drop dma_buf reference on foreign-fd prime import

ttm_prime_fd_to_handle() returns -ENOSYS when the imported fd's dma_buf->ops do not match the ttm_object_device's ops, but does so without releasing the reference acquired by dma_buf_get(). Any unprivileged renderD client passing a non-vmwgfx prime fd through the DRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per call and indefinitely pins the foreign exporter's GEM resources.

Funnel the error path through the existing dma_buf_put() so the reference is always dropped.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-80888"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T18:17:56Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: drop dma_buf reference on foreign-fd prime import\n\nttm_prime_fd_to_handle() returns -ENOSYS when the imported fd\u0027s\ndma_buf-\u003eops do not match the ttm_object_device\u0027s ops, but does so\nwithout releasing the reference acquired by dma_buf_get().  Any\nunprivileged renderD client passing a non-vmwgfx prime fd through the\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per\ncall and indefinitely pins the foreign exporter\u0027s GEM resources.\n\nFunnel the error path through the existing dma_buf_put() so the\nreference is always dropped.",
  "id": "GHSA-3r89-cxvf-8cx5",
  "modified": "2026-09-04T18:31:33Z",
  "published": "2026-09-04T18:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80888"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/619c3cfa88e09603a13d918f754808db2dda7057"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c1c22fca0a0896a452a7cb92422d67babd65b4be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-80888 (GCVE-0-2026-80888)

FKIE_CVE-2026-80888

GHSA-3R89-CXVF-8CX5

Tags

Sightings

Nomenclature