SB2025040271 - NULL pointer dereference in Linux kernel bluetooth
Published: April 2, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025040271
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-2025-21936)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mgmt_device_connected() function in net/bluetooth/mgmt.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/7841180342c9a0fd97d54f3e62c7369309b5cd84
- https://git.kernel.org/stable/c/7d39387886ffe220323cbed5c155233c3276926b
- https://git.kernel.org/stable/c/bdb1805c248e9694dbb3ffa8867cef2e52cf7261
- https://git.kernel.org/stable/c/d8df010f72b8a32aaea393e36121738bb53ed905
- https://git.kernel.org/stable/c/dc516e66fb28c61b248b393e2ddd63bd7f104969
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.131