CVE Database›CVE-2025-68197

CVE-2025-68197

kernel: bnxt_en: Fix null pointer dereference in bnxt_bs_trace_check_wrap()

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Severity

Moderate

Red Hat Product Security

5

CVSS 3.1

Review impact separately from score.

Published · December 16, 2025

Updated · June 30, 2026

Description

A flaw was identified in the Broadcom NetXtreme-E (bnxt_en) networking driver in the Linux kernel involving improper handling of uninitialized firmware trace event data. Certain firmware versions may report an ASYNC_EVENT_CMPL_EVENT_ID_DBG_BUF_PRODUCER event type without having initialized the corresponding trace buffer pointer (magic_byte). When the driver attempts to process this event in the bnxt_bs_trace_type_wrap() function, it may dereference a NULL or invalid pointer, leading to a kernel crash (NULL pointer dereference).

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

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.

CVSS / CWE

CVSS 3.1 · 5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

CWE-476 · NULL Pointer Dereference