SB2026100709 - NULL pointer dereference in Linux kernel hw bnxt_re driver
Published: October 7, 2026
Security Bulletin ID
SB2026100709
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2026-98356)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/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 a null pointer dereference in the bnxt_re RDMA driver's asynchronous DCB handler when processing events after a failed workqueue allocation. A local user can trigger asynchronous DCB handling under this condition to cause a denial of service.
Remediation
Install update from vendor's website.