SB20250916173 - NULL pointer dereference in Linux kernel hwmon pmbus driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916173
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 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-53206)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the _pmbus_is_enabled(), _pmbus_get_flags() and pmbus_get_flags() functions in drivers/hwmon/pmbus/pmbus_core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.