In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram
When migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set + MIGRATE_PFN_VALID unset) driver still allocates device pages. There is no dma map of src pages and migration. j is 0 and svm_migrate_copy_memory_gart() will return an uninitialized r. That can trigger out_free_vram_pages to drop all VRAM just set up.
Initialize r and only call the last svm_migrate_copy_memory_gart if j > 0.
Current code postponed the last page to the final copy. This patch flushes on the last page when reach to the end of current drm_buddy_block; avoids another svm_migrate_copy_memory_gart.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Nov 3, 2026 | Sep 16, 2026 |
| Redhat_linux | — | No solution exists | Oct 22, 2026 | Sep 16, 2026 |
| Ubuntu | — | Upgrade linux-awsUpgrade linux-riscvUpgrade linux-oem-7.0Upgrade linux-gcpUpgrade linux-oracleUpgrade linux-riscv-7.0Upgrade linux-hwe-7.0Upgrade linux-ibmUpgrade linux | Nov 3, 2026 | Sep 16, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Nov 4, 2026 | Sep 16, 2026 |
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