SB2026072074 - Improper resource shutdown or release in Linux kernel bluetooth driver
Published: July 20, 2026
Security Bulletin ID
SB2026072074
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper resource shutdown or release (CVE-ID: CVE-2026-64144)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in the btmtk USB Bluetooth driver when handling failed or killed control urbs. A local user can trigger error paths to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0d2572bafea33c7cd1d77c6a25f25ff31a432482
- https://git.kernel.org/stable/c/2a1905730e0c771b999906a7b509722f795563c6
- https://git.kernel.org/stable/c/68c027c2003b0a8a1439d0301c59c6fd1eb3b844
- https://git.kernel.org/stable/c/a0f5268c77eb73f84ba7c210ddfc54b1c73ff80c
- https://git.kernel.org/stable/c/dd1dda6b8d6e1f4376a5b3055a04f0ecbdb4d6bd