CVE-2026-45853
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- linux linux_kernel6.12.75, 6.18.14, 6.19.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.11 ≤ v < 6.12.75, 6.13 ≤ v < 6.18.14, 6.19 ≤ v < 6.19.4 | 6.12.75, 6.18.14, 6.19.4 |
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