fkie_nvd - fkie_cve-2025-40191

fkie_cve-2025-40191

Vulnerability from fkie_nvd

Published

2025-11-12 22:15

Modified

2025-11-14 16:42

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix kfd process ref leaking when userptr unmapping kfd_lookup_process_by_pid hold the kfd process reference to ensure it doesn't get destroyed while sending the segfault event to user space. Calling kfd_lookup_process_by_pid as function parameter leaks the kfd process refcount and miss the NULL pointer check if app process is already destroyed.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/58e6fc2fb94f0f409447e5d46cf6a417b6397fbc
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/60f6112fc9b3ba0eae519f10702c0c13bab45742

Impacted products

	Vendor	Product	Version

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix kfd process ref leaking when userptr unmapping\n\nkfd_lookup_process_by_pid hold the kfd process reference to ensure it\ndoesn\u0027t get destroyed while sending the segfault event to user space.\n\nCalling kfd_lookup_process_by_pid as function parameter leaks the kfd\nprocess refcount and miss the NULL pointer check if app process is\nalready destroyed."
    }
  ],
  "id": "CVE-2025-40191",
  "lastModified": "2025-11-14T16:42:30.503",
  "metrics": {},
  "published": "2025-11-12T22:15:46.080",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/58e6fc2fb94f0f409447e5d46cf6a417b6397fbc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/60f6112fc9b3ba0eae519f10702c0c13bab45742"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-40191 (GCVE-0-2025-40191)

Vulnerability from cvelistv5

Published

2025-11-12 21:56

Modified

2025-11-12 21:56

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix kfd process ref leaking when userptr unmapping kfd_lookup_process_by_pid hold the kfd process reference to ensure it doesn't get destroyed while sending the segfault event to user space. Calling kfd_lookup_process_by_pid as function parameter leaks the kfd process refcount and miss the NULL pointer check if app process is already destroyed.

References

URL

Tags

	https://git.kernel.org/stable/c/60f6112fc9b3ba0eae519f10702c0c13bab45742
	https://git.kernel.org/stable/c/58e6fc2fb94f0f409447e5d46cf6a417b6397fbc

Impacted products

Vendor

Product

Version

Version: 2d274bf7099bc5e95fabaa93f23d0eb2977187ad
Version: 2d274bf7099bc5e95fabaa93f23d0eb2977187ad

Version: 6.16

Show details on NVD website

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "60f6112fc9b3ba0eae519f10702c0c13bab45742",
              "status": "affected",
              "version": "2d274bf7099bc5e95fabaa93f23d0eb2977187ad",
              "versionType": "git"
            },
            {
              "lessThan": "58e6fc2fb94f0f409447e5d46cf6a417b6397fbc",
              "status": "affected",
              "version": "2d274bf7099bc5e95fabaa93f23d0eb2977187ad",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.4",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18-rc1",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix kfd process ref leaking when userptr unmapping\n\nkfd_lookup_process_by_pid hold the kfd process reference to ensure it\ndoesn\u0027t get destroyed while sending the segfault event to user space.\n\nCalling kfd_lookup_process_by_pid as function parameter leaks the kfd\nprocess refcount and miss the NULL pointer check if app process is\nalready destroyed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-12T21:56:31.206Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/60f6112fc9b3ba0eae519f10702c0c13bab45742"
        },
        {
          "url": "https://git.kernel.org/stable/c/58e6fc2fb94f0f409447e5d46cf6a417b6397fbc"
        }
      ],
      "title": "drm/amdkfd: Fix kfd process ref leaking when userptr unmapping",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40191",
    "datePublished": "2025-11-12T21:56:31.206Z",
    "dateReserved": "2025-04-16T07:20:57.177Z",
    "dateUpdated": "2025-11-12T21:56:31.206Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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