SB20260918187 - Unchecked Return Value in Linux kernel hw hfi1 driver
Published: September 18, 2026
Security Bulletin ID
SB20260918187
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Unchecked Return Value (CVE-ID: CVE-2026-93037)
CWE-ID: CWE-252 - Unchecked Return Value
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause improper processing of a request.
The vulnerability exists due to an unchecked return value in the set_txreq_header_ahg() function when initializing an accelerated header generation transmit request. A local user can submit a request for which sdma_txinit_ahg() fails to cause improper processing of a request.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/091c6162c022cbdfb64219708a71728cfd1d4600
- https://git.kernel.org/stable/c/122a730675565ff2ad210537c3fc3afb8291d482
- https://git.kernel.org/stable/c/3416db552eb378e54cb2f2ce0db5f0df88654bda
- https://git.kernel.org/stable/c/5b7cefffd15d87c8103865f887cdcf9077d8094b
- https://git.kernel.org/stable/c/bf974994150cfd14bfc599748925f4d426e00d90
- https://git.kernel.org/stable/c/ca99431820e8cac19f6a091c04da54cbe8d64f52
- https://git.kernel.org/stable/c/cb73c2fe6e9cf563c99f22b7c8bca0d5f70d603e
- https://git.kernel.org/stable/c/fd6dee13f3857259b6b2ddd28e1ed95fd94ae2f9