SB2025071163 - Input validation error in Linux kernel bluetooth
Published: July 11, 2025
Security Bulletin ID
SB2025071163
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) Input validation error (CVE-ID: CVE-2025-38303)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the hci_set_ext_adv_data_sync() and hci_set_adv_data_sync() functions in net/bluetooth/hci_sync.c, within the eir_create_per_adv_data() and eir_create_adv_data() functions in net/bluetooth/eir.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.