{"id":"CVE-2026-93284","title":"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 unmappin…","summary":"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 unmappin…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f86ad0ed620cb3c91ec7d5468e93ac68d727539d < e4331c6644db85bc6ceb470bd84bcf371b6dbfa6","Linux >= f86ad0ed620cb3c91ec7d5468e93ac68d727539d < 9e6372ec2a3990662ae0a67f56ac0aee19848d5b","Linux 6.17"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T17:17:09.587","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93284","references":[{"url":"https://git.kernel.org/stable/c/9e6372ec2a3990662ae0a67f56ac0aee19848d5b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e4331c6644db85bc6ceb470bd84bcf371b6dbfa6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-24T16:47:15.906Z","slug":"CVE-2026-93284","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}