CVE-2026-93037

A flaw was found in the Linux kernel's RDMA/hfi1 component. The set_txreq_header_ahg() function fails to properly handle errors returned by sdma_txinit_ahg(). This oversight allows the system to continue processing requests as if they were successfully initialized, even when an error occurred. This could lead to system instability or unexpected behavior.

This vulnerability is rated as having Moderate impact because it requires local access on systems configured with specialized Intel Omni-Path Architecture hardware, limiting the blast radius primarily to a kernel crash and denial of service. The affected hfi1 driver is not utilized on standard installations unless corresponding Omni-Path host fabric adapters are physically present and configured. Consequently, standard Red Hat Enterprise Linux deployments lacking this specific high-performance networking hardware are not exposed to exploitation.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.