SB2025040292 - Reachable assertion in Linux kernel typec ucsi driver

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Main Vulnerability Database SB2025040292

SB2025040292 - Reachable assertion in Linux kernel typec ucsi driver

Published: April 2, 2025 Updated: May 11, 2025

Security Bulletin ID SB2025040292
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 security vulnerability.


1) Reachable assertion (CVE-ID: CVE-2025-21902)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to reachable assertion within the yoga_c630_ucsi_async_control() function in drivers/usb/typec/ucsi/ucsi_yoga_c630.c, within the ucsi_stm32g0_irq_handler() function in drivers/usb/typec/ucsi/ucsi_stm32g0.c, within the pmic_glink_ucsi_connector_status() function in drivers/usb/typec/ucsi/ucsi_glink.c, within the ucsi_acpi_read_version(), ucsi_acpi_async_control() and ucsi_gram_sync_control() functions in drivers/usb/typec/ucsi/ucsi_acpi.c, within the ucsi_reset_ppm() and ucsi_create() functions in drivers/usb/typec/ucsi/ucsi.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References