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High severity7.8NVD Advisory· Published May 27, 2026· Updated Jun 25, 2026

CVE-2026-45853

CVE-2026-45853

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()

amdgpu_discovery_get_nps_info() internally allocates memory for ranges using kvcalloc(), which may use vmalloc() for large allocation. Using kfree() to release vmalloc memory will lead to a memory corruption.

Use kvfree() to safely handle both kmalloc and vmalloc allocations.

Compile tested only. Issue found using a prototype static analysis tool and code review.

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Affected products

16

Patches

Vulnerability mechanics

References

4

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