SB2025100968 - Division by zero in Linux kernel clk sunxi-ng driver
Published: October 9, 2025
Security Bulletin ID
SB2025100968
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) Division by zero (CVE-ID: CVE-2025-39954)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a division by zero error within the ccu_mp_recalc_rate() function in drivers/clk/sunxi-ng/ccu_mp.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.