#VU117750 Double free in Linux kernel - CVE-2025-40062
Published: October 28, 2025
Vulnerability identifier: #VU117750
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-2025-40062
CWE-ID: CWE-415
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 a double free error within the qm_diff_regs_init() function in drivers/crypto/hisilicon/debugfs.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/1750f1ec143ebabdbdfa013668665c9d5042c430
- https://git.kernel.org/stable/c/7226a0650ad5705bd8d39a11be270fa21ed1e6a5
- https://git.kernel.org/stable/c/a7836260d5121949ba734e840d42a86ab4a32fcc
- https://git.kernel.org/stable/c/a87a21a56244b8f4eb357f6bad879247005bbe38
- https://git.kernel.org/stable/c/f0cafb02de883b3b413d34eb079c9680782a9cc1