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.

A flaw was found in the Linux kernel's `drm/amdgpu` component. The `amdgpu_discovery_get_nps_info()` function incorrectly deallocates memory by using `kfree()` instead of `kvfree()`, even when memory was allocated with `kvcalloc()` which may use `vmalloc()`. This improper memory handling can lead to memory corruption. Such a vulnerability could potentially be exploited by a local attacker to cause system instability or escalate privileges.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-45853 https://nvd.nist.gov/vuln/detail/CVE-2026-45853 https://lore.kernel.org/linux-cve-announce/2026052709-CVE-2026-45853-9163@gregkh/T