SB20260928372 - Unchecked Return Value in Linux kernel broadcom bnxt driver
Published: September 28, 2026 Updated: September 30, 2026
Security Bulletin ID
SB20260928372
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Unchecked Return Value (CVE-ID: CVE-2026-97571)
CWE-ID: CWE-252 - Unchecked Return Value
CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause the device to use a zero DMA address.
The vulnerability exists due to an unchecked return value in bnxt_queue_mem_alloc() when allocating TPA buffer information. A local user can trigger a TPA buffer allocation failure to cause the device to use a zero DMA address.
An uninitialized rx_tpa[] slot must be selected by the hardware.
Remediation
Install update from vendor's website.