SB20260918418 - Memory leak in Linux kernel bluetooth
Published: September 18, 2026
Security Bulletin ID
SB20260918418
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) Memory leak (CVE-ID: CVE-2026-90253)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
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 cleanup in the Bluetooth MGMT mesh send cancel command handler when a pending mesh send cancel command is cancelled. A local user can cause a pending mesh send cancel command to be cancelled to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/05438d338a875a9daa08ca3f6a35b4480cf13de4
- https://git.kernel.org/stable/c/3c742feda8fcabf741a17bcf668b63c8f606f9c5
- https://git.kernel.org/stable/c/416fabca9b7237b76aa9cafcf8c497b8ac00d88c
- https://git.kernel.org/stable/c/88e30d036d777b00aed42bd35000de23ff40910c
- https://git.kernel.org/stable/c/b609341ee56967d9a45845ff26f79336d2114b55
- https://git.kernel.org/stable/c/fa46d428c014e7b72a18634679815670418e67dc