{"id":"CVE-2026-93284","summary":"drm/pagemap: dma-unmap pages before handling migration errors","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.","modified":"2026-09-25T03:48:54.497426988Z","published":"2026-09-24T16:02:08.527Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93284.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f86ad0ed620cb3c91ec7d5468e93ac68d727539d"},{"fixed":"e4331c6644db85bc6ceb470bd84bcf371b6dbfa6"},{"fixed":"9e6372ec2a3990662ae0a67f56ac0aee19848d5b"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93284.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.17.0"},{"fixed":"6.18.53"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93284.json"}}],"schema_version":"1.9.0"}