CVE-2026-90089
kernel: Bluetooth: btnxpuart: Validate the FW dump header length
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 13, 2026
Description
A flaw was found in the Bluetooth btnxpuart driver in the Linux kernel. This vulnerability occurs because the nxp_process_fw_dump() function does not properly validate the length of the firmware dump header. A remote attacker could send a specially crafted, truncated Bluetooth frame, leading to an out-of-bounds read. This could cause the driver to reset the controller, resulting in a Denial of Service (DoS).
CVSS score applicability
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
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-125 · Out-of-bounds Read