Unchecked Return Value in Linux kernel - CVE-2026-97571
Published: September 28, 2026
Vulnerability identifier: #VU152643
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-97571
CWE-ID: CWE-252
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
How to mitigate CVE-2026-97571
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3