Use-after-free in Linux kernel - CVE-2025-38106
Published: July 4, 2025
Vulnerability identifier: #VU112178
CSH Severity: Low
CVSS v4.0: 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-2025-38106
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the io_sq_thread() and io_sq_offload_create() functions in io_uring/sqpoll.c, within the __io_uring_show_fdinfo() function in io_uring/fdinfo.c. A local user can escalate privileges on the system.
How to mitigate CVE-2025-38106
Install update from vendor's repository.