UNKNOWN NVD
CVE-2026-93284
In the Linux kernel, the following vulnerability has been resolved: drm/pagemap: dma-unmap pages before handling migration errors drm_pagemap_migrate_unmap_pa
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.
References
- https://git.kernel.org/stable/c/9e6372ec2a3990662ae0a67f56ac0aee19848d5b
- https://git.kernel.org/stable/c/e4331c6644db85bc6ceb470bd84bcf371b6dbfa6
This unknown severity vulnerability was published on 2026-09-24 via NVD.
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