SB2025091866 - NULL pointer dereference in Linux kernel bluetooth driver
Published: September 18, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091866
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2022-50374)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the hci_uart_register_device() and hci_uart_unregister_device() functions in drivers/bluetooth/hci_serdev.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1
- https://git.kernel.org/stable/c/75b2c71ea581c7bb1303860d89366a42ad0506d2
- https://git.kernel.org/stable/c/98ce10f3f345e61fc6c83bff9cd11cda252b05ac
- https://git.kernel.org/stable/c/b8917dce2134739b39bc0a5648b18427f2cad569
- https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150