Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f86ad0ed620cb3c91ec7d5468e93ac68d727539d before e4331c6644db85bc6ceb470bd84bcf371b6dbfa6; affected f86ad0ed620cb3c91ec7d5468e93ac68d727539d before 415f5a755cec5164b149037bf294e270b78d36c6; affected f86ad0ed620cb3c91ec7d5468e93ac68d727539d before 9e6372ec2a3990662ae0a67f56ac0aee19848d5b |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 6.18.53 through 6.18.*; unaffected 7.2.9 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.