{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "42f148788469792df207751e2339ef2bb8a1e33e"
            },
            {
              "fixed": "c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38"
            },
            {
              "fixed": "508babf310365f1107a2e8831c267c292a286818"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52987.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: avoid double drm_exec_fini() in userq validate\n\nWhen new_addition is true, amdgpu_userq_vm_validate() calls\ndrm_exec_fini(\u0026exec) before iterating over the collected HMM ranges and\ncalling amdgpu_ttm_tt_get_user_pages().\n\nIf amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to\nunlock_all and calls drm_exec_fini(\u0026exec) a second time on the same\nexec object. drm_exec_fini() is not idempotent: it frees exec-\u003eobjects\nand may also drop exec-\u003econtended and finalize the ww acquire context.\n\nRoute that error path directly to the range cleanup once exec has\nalready been finalized.\n\nIssue found using a prototype static analysis tool\nand confirmed by code review.\n\n(cherry picked from commit 2802952e4a07306da6ebe813ff1acacc5691851a)",
  "id": "CVE-2026-52987",
  "modified": "2026-07-08T05:37:31.190859504Z",
  "published": "2026-06-24T16:29:01.633Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/508babf310365f1107a2e8831c267c292a286818"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52987.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-52987"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52987.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52987"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492365"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "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/amdgpu: avoid double drm_exec_fini() in userq validate"
}