Input validation error in Linux kernel - CVE-2025-38303
Published: July 11, 2025
Vulnerability identifier: #VU112809
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-38303
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2025-38303
Install update from vendor's repository.