{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a292fdecd72834b3bec380baa5db1e69e7f70679"
            },
            {
              "fixed": "6fff5204d8aa26b1be50b6427f833bd3e8899c4f"
            },
            {
              "fixed": "46630d966b99b0fc6cb01fef4110587f3375a0c0"
            },
            {
              "fixed": "ea78f8c68f4f6211c557df49174c54d167821962"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "fixed": "6.18.19"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43400.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: add upper bound check on user inputs in signal ioctl\n\nHuge input values in amdgpu_userq_signal_ioctl can lead to a OOM and\ncould be exploited.\n\nSo check these input value against AMDGPU_USERQ_MAX_HANDLES\nwhich is big enough value for genuine use cases and could\npotentially avoid OOM.\n\n(cherry picked from commit be267e15f99bc97cbe202cd556717797cdcf79a5)",
  "id": "CVE-2026-43400",
  "modified": "2026-07-15T01:49:07.326989762Z",
  "published": "2026-05-08T14:21:42.225Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46630d966b99b0fc6cb01fef4110587f3375a0c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fff5204d8aa26b1be50b6427f833bd3e8899c4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea78f8c68f4f6211c557df49174c54d167821962"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43400.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43400"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "drm/amdgpu: add upper bound check on user inputs in signal ioctl"
}