{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "50ea50cf6f6d31d3235ad1853c5dbea766a3ed11"
            },
            {
              "fixed": "ae806a95b28fcecb913430cfa45a252e91a945d6"
            },
            {
              "fixed": "0a9a0e8a97da70a0336c9115178aaf1be29bcfb1"
            },
            {
              "fixed": "520e345ffe05aabef1db82beda4288afb1757ff2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.14.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89808.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram\n\nWhen migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set +\nMIGRATE_PFN_VALID unset) driver still allocates device pages. There is no\ndma map of src pages and migration. j is 0 and svm_migrate_copy_memory_gart()\nwill return an uninitialized r. That can trigger out_free_vram_pages to drop\nall VRAM just set up.\n\nInitialize r and only call the last svm_migrate_copy_memory_gart if j \u003e 0.\n\nCurrent code postponed the last page to the final copy. This patch flushes on\nthe last page when reach to the end of current drm_buddy_block; avoids another\nsvm_migrate_copy_memory_gart.",
  "id": "CVE-2026-89808",
  "modified": "2026-09-19T03:30:34.988340Z",
  "published": "2026-09-16T10:30:41.508Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a9a0e8a97da70a0336c9115178aaf1be29bcfb1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/520e345ffe05aabef1db82beda4288afb1757ff2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae806a95b28fcecb913430cfa45a252e91a945d6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89808.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89808"
    },
    {
      "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:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram"
}