Memory leak in Linux kernel - CVE-2025-38520
Published: August 18, 2025
Vulnerability identifier: #VU114132
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-38520
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the svm_range_split_head(), svm_range_split_by_granularity(), svm_range_add_list_work(), schedule_deferred_list_work(), svm_range_unmap_split(), svm_range_unmap_from_cpu() and svm_range_cpu_invalidate_pagetables() functions in drivers/gpu/drm/amd/amdkfd/kfd_svm.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-38520
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/145a56bd68f4bff098d59fbc7c263d20dfef4fc4
- https://git.kernel.org/stable/c/a7eb0a25010a674c8fdfbece38353ef7be8c5834
- https://git.kernel.org/stable/c/c1bde9d48e09933c361521720f77a8072083c83a
- https://git.kernel.org/stable/c/cf234231fcbc7d391e2135b9518613218cc5347f
- https://git.kernel.org/stable/c/e90ee15ce28c61f6d83a0511c3e02e2662478350