CVE-2026-93284: Linux

High severity, CVSS 8.8. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux: from 6.17, before 6.18.53 (fixed in 6.18.53); from 6.19, before 7.2.9 (fixed in 7.2.9)

Published 2026-09-24. Last modified 2026-10-03.