SB2025070421 - Use-after-free in Linux kernel net bluetooth
Published: July 4, 2025
Security Bulletin ID
SB2025070421
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-38118)
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.
Remediation
Install update from vendor's website.
References
- 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