SB20260508113 - NULL pointer dereference in Linux kernel scsi hisi_sas driver

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Main Vulnerability Database SB20260508113

SB20260508113 - NULL pointer dereference in Linux kernel scsi hisi_sas driver

Published: May 8, 2026

Security Bulletin ID SB20260508113
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2026-43413)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 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/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in the hisi_sas user_scan() handling path when processing a user-initiated scan request. A local user can write a crafted scan request via sysfs to trigger a kernel crash and cause a denial of service.

The issue is triggered because the driver supports only one channel, but scanning proceeds to an additional channel value.


Remediation

Install update from vendor's website.

References