Use-after-free in Linux kernel - CVE-2025-38118
Published: July 4, 2025
Vulnerability identifier: #VU112183
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-2025-38118
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 mgmt_adv_monitor_added(), __add_adv_patterns_monitor(), mgmt_remove_adv_monitor_complete() and remove_adv_monitor() functions in net/bluetooth/mgmt.c, within the hci_free_adv_monitor() function in net/bluetooth/hci_core.c. A local user can escalate privileges on the system.
How to mitigate CVE-2025-38118
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/32aa2fbe319f33b0318ec6f4fceb63879771a286
- https://git.kernel.org/stable/c/3c9aba9cbdf163e2654be9f82d43ff8a04273962
- https://git.kernel.org/stable/c/9df3e5e7f7e4653fd9802878cedc36defc5ef42d
- https://git.kernel.org/stable/c/9f66b6531c2b4e996bb61720ee94adb4b2e8d1be
- https://git.kernel.org/stable/c/e6ed54e86aae9e4f7286ce8d5c73780f91b48d1c