SB2026081585 - Incorrect Check of Function Return Value in Linux kernel gpu host1x driver

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Main Vulnerability Database SB2026081585

SB2026081585 - Incorrect Check of Function Return Value in Linux kernel gpu host1x driver

Published: August 15, 2026

Security Bulletin ID SB2026081585
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) Incorrect Check of Function Return Value (CVE-ID: CVE-2026-74380)

CWE-ID: CWE-253 - Incorrect Check of Function Return Value

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 improper handling of error return values in pin_job() in the host1x GPU driver when mapping scatter-gather tables through the IOMMU. A local user can trigger the affected code path to cause a denial of service.

The issue involves assigning the iommu_map_sgtable() result to an incorrect integer type, which can turn error conditions into negative overflowed values.


Remediation

Install update from vendor's website.

References