#VU106573 Memory leak in Linux kernel - CVE-2025-21978
Published: April 2, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106573
Vulnerability risk: Low
CVSSv4.0: 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-2025-21978
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the hyperv_vmbus_probe() and hyperv_vmbus_remove() functions in drivers/gpu/drm/hyperv/hyperv_drm_drv.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/158242b56bf465a73e1edeac0fe828a8acad4499
- https://git.kernel.org/stable/c/24f1bbfb2be77dad82489c1468bbb14312aab129
- https://git.kernel.org/stable/c/ad27b4a51495490b815580d9b935e8eee14d1a9c
- https://git.kernel.org/stable/c/aed709355fd05ef747e1af24a1d5d78cd7feb81e
- https://git.kernel.org/stable/c/c40cd24bfb9bfbb315c118ca14ebe6cf52e2dd1e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.132