SB20260424230 - Integer overflow in Linux kernel hw irdma driver
Published: April 24, 2026
Security Bulletin ID
SB20260424230
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) Integer overflow (CVE-ID: CVE-2026-31491)
CWE-ID: CWE-190 - Integer overflow
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 integer overflow in RDMA/irdma depth calculation functions when processing SQ/RQ/SRQ size values. A local user can supply a specially crafted size value to cause a denial of service.
The issue is triggered when the operating system passes U32_MAX for SQ, RQ, or SRQ size.
Remediation
Install update from vendor's website.