CVE-2026-93284 drm/pagemap: dma-unmap pages before handling migration errors

In the Linux kernel, the following vulnerability has been resolved: drm/pagemap: dma-unmap pages before handling migration errors drmpagemapmigrateunmappages relies on the pages array to determine which pages require DMA unmapping. However, drmpagemapmigrationunlockputpages clears the array as pa...