SB20260928225 - Race condition in Linux kernel bluetooth

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2026-97975)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a race condition in hci_conn_del_sysfs() and device_del() when concurrently unregistering child devices while connection devices are being removed. A local user can trigger concurrent child device unregistration to cause a NULL pointer dereference.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/9b851b09b392da68bd715601f10a5adb2d8d19b8
• https://git.kernel.org/stable/c/9e9ece97b8e716890793de261574b8efef7d8702
• https://git.kernel.org/stable/c/eeabdb25c3209569367e99a85ca9a503b64a646d