#VU109508 Use-after-free in Linux kernel - CVE-2025-37926
Published: May 21, 2025 / Updated: May 21, 2025
Vulnerability identifier: #VU109508
Vulnerability risk: Low
CVSSv4.0: 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/E:U/U:Clear
CVE-ID: CVE-2025-37926
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ksmbd_session_rpc_clear_list(), ksmbd_session_rpc_open(), ksmbd_session_rpc_close() and __session_create() functions in fs/smb/server/mgmt/user_session.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/6323fec65fe54b365961fed260dd579191e46121
- https://git.kernel.org/stable/c/8fb3b6c85b7e3127161623586b62abcc366caa20
- https://git.kernel.org/stable/c/a1f46c99d9ea411f9bf30025b912d881d36fc709
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.28
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.6