SB2025030649 - NULL pointer dereference in Linux kernel bluetooth driver
Published: March 6, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025030649
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-2025-21827)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the btusb_mtk_claim_iso_intf() function in drivers/bluetooth/btusb.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/4194766ec8756f4f654d595ae49962acbac49490
- https://git.kernel.org/stable/c/930e1790b99e5839e1af69d2f7fd808f1fba2df9
- https://git.kernel.org/stable/c/e9087e828827e5a5c85e124ce77503f2b81c3491
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14