{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a70a93fa568b4f05aba548dadb673703eccf5480"
            },
            {
              "fixed": "4e5f808b454167cc58d7084a407a554d8ddc694d"
            },
            {
              "fixed": "de70a80992396ee306ee3a2810ad28aa1608ba9b"
            },
            {
              "fixed": "5cf4a41aa0d74e4c83f82d2ce233b5189ed4b43c"
            },
            {
              "fixed": "4f9eeedc3d3151f8a226fd676c314a813edda5a1"
            },
            {
              "fixed": "93f5534b35a05ef8a0109c1eefa800062fee810a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.5.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63881.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: fix a vulnerability of integer overflow in kfd debugger\n\nget_queue_ids() computes array_size = num_queues * sizeof(uint32_t),\nwhich could overflow on 32-bit size_t build. using array_size()\ninstead, it saturates to SIZE_MAX on overflow.\n\n(cherry picked from commit 2d57a0475f085c08b49312dfd8edcb461845f285)",
  "id": "CVE-2026-63881",
  "modified": "2026-07-21T03:42:04.932731238Z",
  "published": "2026-07-19T14:54:53.676Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e5f808b454167cc58d7084a407a554d8ddc694d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f9eeedc3d3151f8a226fd676c314a813edda5a1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cf4a41aa0d74e4c83f82d2ce233b5189ed4b43c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/93f5534b35a05ef8a0109c1eefa800062fee810a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de70a80992396ee306ee3a2810ad28aa1608ba9b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63881.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63881"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger"
}