Use-after-free in Linux kernel - CVE-2023-53636
Published: October 8, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU116752
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-53636
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mpfs_reset_unregister_adev() function in drivers/clk/microchip/clk-mpfs.c. A local user can escalate privileges on the system.
Affected software
Linux kernel
How to mitigate CVE-2023-53636
Install update from vendor's repository.
Linux kernel - update to 6.2.15
External References
- https://git.kernel.org/stable/c/5b4052aa956e11bcd19e50ca559eb38dcb46201b
- https://git.kernel.org/stable/c/7455b7007b9e93bcc2bc9c1c6c73a228e3152069
- https://git.kernel.org/stable/c/934406b2d42eaf3fc57f5546cc68ff7ab9680bb3
- https://git.kernel.org/stable/c/d7d6dacf39ed102d7667721ca1700022c9c8b11a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.15