{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f86ad0ed620cb3c91ec7d5468e93ac68d727539d"
            },
            {
              "fixed": "e4331c6644db85bc6ceb470bd84bcf371b6dbfa6"
            },
            {
              "fixed": "9e6372ec2a3990662ae0a67f56ac0aee19848d5b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.17.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93284.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/pagemap: dma-unmap pages before handling migration errors\n\ndrm_pagemap_migrate_unmap_pages() relies on the pages array to determine\nwhich pages require DMA unmapping. However,\ndrm_pagemap_migration_unlock_put_pages() clears the array as part of its\ncleanup, leaving drm_pagemap_migrate_unmap_pages() with no valid page\ninformation if it is called afterward.\n\nCall drm_pagemap_migrate_unmap_pages() before\ndrm_pagemap_migration_unlock_put_pages() so the pages array remains\nvalid during DMA unmapping.",
  "id": "CVE-2026-93284",
  "modified": "2026-09-26T03:30:59.064423660Z",
  "published": "2026-09-24T16:02:08.527Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e6372ec2a3990662ae0a67f56ac0aee19848d5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4331c6644db85bc6ceb470bd84bcf371b6dbfa6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93284.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93284"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/pagemap: dma-unmap pages before handling migration errors"
}