SB2026090569 - Race condition in Linux kernel drm tegra driver



SB2026090569 - Race condition in Linux kernel drm tegra driver

Published: September 5, 2026

Security Bulletin ID SB2026090569
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Race condition (CVE-ID: CVE-2026-80883)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to submit a job before the address register map is initialized.

The vulnerability exists due to a race condition in the Tegra GR2D and GR3D drivers when submitting a job after the HOST1X client becomes available to userspace and before initialization completes. A local user can submit a job during this initialization window to submit a job before the address register map is initialized.


Remediation

Install update from vendor's website.