SB20260625106 - Improper Initialization in Linux kernel controller dwc driver
Published: June 25, 2026
Security Bulletin ID
SB20260625106
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Initialization (CVE-ID: CVE-2026-53051)
CWE-ID: CWE-665 - Improper Initialization
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 improper initialization in the tegra194 PCIe endpoint reset handling code when processing a double PERST# deassert sequence. A local user can trigger repeated reset transitions to cause a denial of service.
The issue occurs because DBI registers are accessed before the controller core is powered on, leading to a CBB timeout.
Remediation
Install update from vendor's website.