What’s Vulnerable › Vulnerabilities

CVE-2022-50393: drm/amdgpu: SDMA update use unlocked iterator

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-18 · updated 2026-08-15

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: SDMA update use unlocked iterator SDMA update page table may be called from unlocked context, this generate below warning. Use unlocked iterator to handle this case. WARNING: CPU: 0 PID: 1475 at drivers/dma-buf/dma-resv.c:483 dma_resv_iter_next Call Trace: dma_resv_iter_first+0x43/0xa0 amdgpu_vm_sdma_update+0x69/0x2d0 [amdgpu] amdgpu_vm_ptes_update+0x29c/0x870 [amdgpu] amdgpu_vm_update_range+0x2f6/0x6c0 [amdgpu] svm_range_unmap_from_gpus+0x115/0x300 [amdgpu] svm_range_cpu_invalidate_pagetables+0x510/0x5e0 [amdgpu] __mmu_notifier_invalidate_range_start+0x1d3/0x230 unmap_vmas+0x140/0x150 unmap_region+0xa8/0x110

Affected products

• Linux kernel: from 4.2 before 5.19.17; from 6.0 before 6.0.3 — fixed in 5.19.17, 6.0.3

How to fix

Upgrade to a fixed version: Linux kernel 5.19.17, 6.0.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3913f0179ba366f7d7d160c506ce00de1602bbc4
• https://git.kernel.org/stable/c/4ff3d517cebe8a29b9f3c302b5292bb1ce291e00
• https://git.kernel.org/stable/c/b892c57a3a04c8de247ab9ee08a0a8cf53290e19

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