CVE-2025-40308

A flaw was discovered in the Linux kernel’s Bluetooth BCSP driver where the function bcsp_recv() could be invoked even when the Broadcom Serial Control Protocol (BCSP) had not been registered. In such cases, the code could dereference a NULL pointer when attempting to process received data, potentially causing a kernel crash or system instability.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.