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LIN1022-34025 : Security Advisory - linux - CVE-2026-93284

Created: Sep 25, 2026    Updated: Sep 29, 2026
Resolved Date: Sep 25, 2026
Found In Version: 10.22.33.2
Fix Version: 10.22.33.11
Severity: Standard
Applicable for: Wind River Linux LTS 22
Component/s: Kernel

Description

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.
Data source: kernel.org (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

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