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CVE-2025-38304

kernel: Linux kernel (Bluetooth): Denial of Service due to NULL pointer dereference

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 10, 2025

Updated · June 30, 2026

Description

A flaw was found in the Linux kernel's Bluetooth subsystem. A local user could trigger a NULL pointer dereference in the eir_get_service_data function. This occurs because the len parameter, which is optional, can be NULL, but the function attempts to use it. Successful exploitation of this vulnerability could lead to a system crash, 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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference