SB20260815216 - Improper input validation in Linux kernel hw bnxt_re driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper input validation (CVE-ID: CVE-2026-72497)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.8 [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]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in the bnxt_re queue pair initialization logic when processing a user-supplied sq_slots value for variable WQE mode. A local user can supply an invalid sq_slots value to cause a denial of service.

The issue occurs when variable WQE mode is used, and the supplied sq_slots value is zero or exceeds the hardware-supported maximum of 64K.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/a59d815cbe667929b693b5fa6716a074e6a31c5b
• https://git.kernel.org/stable/c/dc95931b7e1326dacae547874bf38c092e5960d8