CVE-2026-93284: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: drm/pagemap: dma-unmap pages before handling migration errors drm_pagemap_migrate_unmap_pages() relies on the pages array to determine which pages require DMA unmapping. However, drm_pagemap_migration_unlock_put_pages() clears the array as part of its cleanup, leaving drm_pagemap_migrate_unmap_pages() with no valid page information if it is called afterward. Call drm_pagemap_migrate_unmap_pages() before drm_pagemap_migration_unlock_put_pages() so the pages array remains valid during DMA unmapping.

Засегнати продукти

• Linux Linux: f86ad0ed620cb3c91ec7d5468e93ac68d727539d преди e4331c6644db85bc6ceb470bd84bcf371b6dbfa6; f86ad0ed620cb3c91ec7d5468e93ac68d727539d преди 415f5a755cec5164b149037bf294e270b78d36c6; f86ad0ed620cb3c91ec7d5468e93ac68d727539d преди 9e6372ec2a3990662ae0a67f56ac0aee19848d5b
• Linux Linux: 6.17; преди 6.17; 6.18.53 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-93284
• https://nvd.nist.gov/vuln/detail/CVE-2026-93284
• https://git.kernel.org/stable/c/e4331c6644db85bc6ceb470bd84bcf371b6dbfa6
• https://git.kernel.org/stable/c/415f5a755cec5164b149037bf294e270b78d36c6
• https://git.kernel.org/stable/c/9e6372ec2a3990662ae0a67f56ac0aee19848d5b