Vulnerability-Lookup

GHSA-Q6FQ-7R5F-C3MX

Vulnerability from github – Published: 2025-11-12 03:30 – Updated: 2026-07-30 06:32

Details

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

drm/vmwgfx: Fix Use-after-free in validation

Nodes stored in the validation duplicates hashtable come from an arena allocator that is cleared at the end of vmw_execbuf_process. All nodes are expected to be cleared in vmw_validation_drop_ht but this node escaped because its resource was destroyed prematurely.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40111"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-12T02:15:33Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Fix Use-after-free in validation\n\nNodes stored in the validation duplicates hashtable come from an arena\nallocator that is cleared at the end of vmw_execbuf_process. All nodes\nare expected to be cleared in vmw_validation_drop_ht but this node escaped\nbecause its resource was destroyed prematurely.",
  "id": "GHSA-q6fq-7r5f-c3mx",
  "modified": "2026-07-30T06:32:16Z",
  "published": "2025-11-12T03:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40111"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1822e5287b7dfa59d0af966756ebf1dc652b60ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c918f9d1ccccc0e092f43dcb2d8266f54d7340b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/655a2f29bfc21105c80bf8a7d7aafa6eca8b4496"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65608e991c2d771c13404e5c7ae122ac3c3357a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/867bda5d95d36f10da398fd4409e21c7002b2332"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a8eaca539708ca532747f606d231f70e684e8ca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfe1323ab3c8a4dd5625ebfdba44dc47df84512a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb7165e5f3b3b10721ff70553583ad12e90e447a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-40111 (GCVE-0-2025-40111)

Vulnerability from cvelistv5 – Published: 2025-11-12 01:07 – Updated: 2026-08-05 12:07

Title

drm/vmwgfx: Fix Use-after-free in validation

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix Use-after-free in validation Nodes stored in the validation duplicates hashtable come from an arena allocator that is cleared at the end of vmw_execbuf_process. All nodes are expected to be cleared in vmw_validation_drop_ht but this node escaped because its resource was destroyed prematurely.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/1822e5287b7dfa59d…
https://git.kernel.org/stable/c/fb7165e5f3b3b1072…
https://git.kernel.org/stable/c/4c918f9d1ccccc0e0…
https://git.kernel.org/stable/c/9a8eaca539708ca53…
https://git.kernel.org/stable/c/867bda5d95d36f10d…
https://git.kernel.org/stable/c/655a2f29bfc21105c…
https://git.kernel.org/stable/c/65608e991c2d771c1…
https://git.kernel.org/stable/c/dfe1323ab3c8a4dd5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 1822e5287b7dfa59d0af966756ebf1dc652b60ee (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < fb7165e5f3b3b10721ff70553583ad12e90e447a (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 4c918f9d1ccccc0e092f43dcb2d8266f54d7340b (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 9a8eaca539708ca532747f606d231f70e684e8ca (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 867bda5d95d36f10da398fd4409e21c7002b2332 (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 655a2f29bfc21105c80bf8a7d7aafa6eca8b4496 (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < 65608e991c2d771c13404e5c7ae122ac3c3357a4 (git) Affected: 64ad2abfe9a628ce79859d072704bd1ef7682044 , < dfe1323ab3c8a4dd5625ebfdba44dc47df84512a (git)
Linux	Linux	Affected: 4.20 Unaffected: 0 , < 4.20 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/vmwgfx/vmwgfx_validation.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1822e5287b7dfa59d0af966756ebf1dc652b60ee",
              "status": "affected",
              "version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
              "versionType": "git"
            },
            {
              "lessThan": "fb7165e5f3b3b10721ff70553583ad12e90e447a",
              "status": "affected",
              "version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
              "versionType": "git"
            },
            {
              "lessThan": "4c918f9d1ccccc0e092f43dcb2d8266f54d7340b",
              "status": "affected",
              "version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
              "versionType": "git"
            },
            {
              "lessThan": "9a8eaca539708ca532747f606d231f70e684e8ca",
              "status": "affected",
              "version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
              "versionType": "git"
            },
            {
              "lessThan": "867bda5d95d36f10da398fd4409e21c7002b2332",
              "status": "affected",
              "version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
              "versionType": "git"
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            {
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              "status": "affected",
              "version": "64ad2abfe9a628ce79859d072704bd1ef7682044",
              "versionType": "git"
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          "product": "Linux",
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.301",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.246",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.195",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
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                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.246",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.195",
                  "versionStartIncluding": "4.20",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.157",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.113",
                  "versionStartIncluding": "4.20",
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.54",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.4",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Fix Use-after-free in validation\n\nNodes stored in the validation duplicates hashtable come from an arena\nallocator that is cleared at the end of vmw_execbuf_process. All nodes\nare expected to be cleared in vmw_validation_drop_ht but this node escaped\nbecause its resource was destroyed prematurely."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is reached only through `DRM_IOCTL_VMW_EXECBUF` on the vmwgfx DRM device node, which requires local execution to issue ioctls. There is no network or adjacent-network path into the command-submission validation code.\nAC:L - The attacker controls both sides of the race \u2014 one thread loops `vmw_execbuf_ioctl()` over a DX context with bound resources while another destroys a bound view/shader/surface \u2014 and the window is widened because `vmw_resource_release()` drops the kref and then blocks on `binding_mutex` that the execbuf walker already holds. The attempt is infinitely repeatable, and a single success permanently poisons the device-global `res_ht`.\nPR:L - `DRM_IOCTL_VMW_EXECBUF` is marked `DRM_RENDER_ALLOW`, so any unprivileged local user holding an fd on `/dev/dri/renderD*` (the default for logged-in desktop users, GPU-enabled containers, and sandboxed GPU processes in VMware guests) can reach it. No capability, DRM master status, or authentication is needed.\nUI:N - The attacking process drives both the execbuf submission and the concurrent resource destruction entirely on its own via ioctls. No action by another user or administrator is required.\nS:U - The corruption is confined to the guest kernel\u0027s own memory within the same security authority; no hypervisor, IOMMU, or VM boundary is crossed even though vmwgfx is a paravirtual GPU driver.\nC:H - The stale hlist entry points into a page freed to the buddy allocator, so subsequent `hash_for_each_possible_rcu()` walks read attacker-groomed memory; a matching sprayed `hash-\u003ekey` yields a fully fabricated `vmw_validation_res_node` whose `private` data is consumed as `struct vmw_ctx_validation_info` pointers, enabling arbitrary kernel memory disclosure.\nI:H - `hash_add_rcu()` writes a kernel pointer into the freed page through the dangling node\u0027s `pprev`, and a sprayed fake node supplies attacker-controlled `res`, `ctx`, and binding-state pointers that the binding/validation code dereferences and writes through \u2014 a use-after-free with both write and control-flow-hijack primitives.\nA:H - The dangling hash entry survives in the device-global `res_ht` and is traversed by every later execbuf from any process on that device, so a single trigger reliably produces list corruption and oopses/panics affecting the whole system."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:07:51.842Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/fb7165e5f3b3b10721ff70553583ad12e90e447a"
        },
        {
          "url": "https://git.kernel.org/stable/c/4c918f9d1ccccc0e092f43dcb2d8266f54d7340b"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a8eaca539708ca532747f606d231f70e684e8ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/867bda5d95d36f10da398fd4409e21c7002b2332"
        },
        {
          "url": "https://git.kernel.org/stable/c/655a2f29bfc21105c80bf8a7d7aafa6eca8b4496"
        },
        {
          "url": "https://git.kernel.org/stable/c/65608e991c2d771c13404e5c7ae122ac3c3357a4"
        },
        {
          "url": "https://git.kernel.org/stable/c/dfe1323ab3c8a4dd5625ebfdba44dc47df84512a"
        }
      ],
      "title": "drm/vmwgfx: Fix Use-after-free in validation",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40111",
    "datePublished": "2025-11-12T01:07:25.203Z",
    "dateReserved": "2025-04-16T07:20:57.167Z",
    "dateUpdated": "2026-08-05T12:07:51.842Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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GHSA-Q6FQ-7R5F-C3MX

CVE-2025-40111 (GCVE-0-2025-40111)

Tags

Sightings

Nomenclature