CVE-2026-43370 (GCVE-0-2026-43370)
Vulnerability from cvelistv5
Published
2026-05-08 14:21
Modified
2026-05-11 22:23
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix use-after-free race in VM acquire Replace non-atomic vm->process_info assignment with cmpxchg() to prevent race when parent/child processes sharing a drm_file both try to acquire the same VM after fork(). (cherry picked from commit c7c573275ec20db05be769288a3e3bb2250ec618)
References
Impacted products
Vendor Product Version
Linux Linux Version: ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
Version: ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
Version: ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
Version: ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
Version: ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
Version: ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
Version: ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
Version: ede0dd86f45adf2b7083bb161f6bc81da5fe2bad
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{
  "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",
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              "versionType": "git"
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.17"
            },
            {
              "lessThan": "4.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.167",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.130",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.78",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.253",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.1.167",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix use-after-free race in VM acquire\n\nReplace non-atomic vm-\u003eprocess_info assignment with cmpxchg()\nto prevent race when parent/child processes sharing a drm_file\nboth try to acquire the same VM after fork().\n\n(cherry picked from commit c7c573275ec20db05be769288a3e3bb2250ec618)"
        }
      ],
      "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"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:23:16.430Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ae87aea330c24f462fc7058ed543ba8bc6798447"
        },
        {
          "url": "https://git.kernel.org/stable/c/46d309996bd9251792d7dafdbaf615cf202b4447"
        },
        {
          "url": "https://git.kernel.org/stable/c/e61e355cbe49e585097eee28c15b862bfb1c0668"
        },
        {
          "url": "https://git.kernel.org/stable/c/c658c1c85ec235b7ecfbf8dbfee385b1332088f4"
        },
        {
          "url": "https://git.kernel.org/stable/c/904025fa8bba1d028adade33346372b4ac1a9249"
        },
        {
          "url": "https://git.kernel.org/stable/c/7885eb335d8f9e9942925d57e300a85e3f82ded4"
        },
        {
          "url": "https://git.kernel.org/stable/c/94b7782d0c8024f5b88454241c8d4777076c3786"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c1030f2e84885cc58bffef6af67d5b9d2e7098f"
        }
      ],
      "title": "drm/amdgpu: Fix use-after-free race in VM acquire",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43370",
    "datePublished": "2026-05-08T14:21:21.926Z",
    "dateReserved": "2026-05-01T14:12:56.006Z",
    "dateUpdated": "2026-05-11T22:23:16.430Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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