SB20260425110 - Division by zero in Linux kernel staging sm750fb driver
Published: April 25, 2026
Security Bulletin ID
SB20260425110
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) Division by zero (CVE-ID: CVE-2026-31603)
CWE-ID: CWE-369 - Divide By Zero
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 division by zero in ps_to_hz() when handling a FBIOPUT_VSCREENINFO request with a zero pixclock value. A local user can supply crafted screen information to trigger a division by zero and cause a denial of service.
Remediation
Install update from vendor's website.