Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix error path at svm_migrate_copy_to_ram If page migration from device to sys ram fails for some reasons driver needs release and unlock allocated system pages. To do that driver should use page physical address, or pfn, then get struct page*. Current driver uses dma address(for adev) that is not correct with IOMMU enabled, or even in general. The patch releases and unlocks allocated system pages based on where migration failed by struct page* of sys ram pages. Also dma_unmap correspodent system ram pages at error path.
References6
- git.kernel.org/stable/c/44cad7ea3532f14999008d899daacc4ce4b633bf
- git.kernel.org/stable/c/872b7427e64f3e84b16c62577cbf3cd09a3401a2
- git.kernel.org/stable/c/960c4a8069bfd352c48cc88592618f1ebe24c69e
- git.kernel.org/stable/c/a2035918a7a1d8fd3bb79d22e1e149294a5a8418
- git.kernel.org/stable/c/da87bcad1f781d822e7ced6d1de9dbc6d381c72e
- git.kernel.org/stable/c/ee007a238dd363ba2f3a3b01815703cfe98711c7
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 8 November 2026
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