CVE-2026-45853

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memran...

Published: 2026-05-27 · Last updated: 2026-05-27

Severity and scoring

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-45853
[Other]https://git.kernel.org/stable/c/0c44d61945c4a80775292d96460aa2f22e62f86c
[Other]https://git.kernel.org/stable/c/16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e
[Other]https://git.kernel.org/stable/c/9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5
[Other]https://git.kernel.org/stable/c/f441538893eba6347b983f2904819ca6c99da65e