CVE-2026-93284
drm/pagemap: dma-unmap pages before handling migration errors
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 24, 2026 |
| Last Updated | Oct 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
f86ad0ed620cb3c91ec7d5468e93ac68d727539d < e4331c6644db85bc6ceb470bd84bcf371b6dbfa6 f86ad0ed620cb3c91ec7d5468e93ac68d727539d < 415f5a755cec5164b149037bf294e270b78d36c6 f86ad0ed620cb3c91ec7d5468e93ac68d727539d < 9e6372ec2a3990662ae0a67f56ac0aee19848d5b
Linux / Linux
6.17