PT-2026-34955 · Linux+2 · Linux Kernel+2
CVE-2026-31603
·
Published
2026-03-31
·
Updated
2026-08-25
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A division by zero occurs in the
ps to hz() function. This happens because hw sm750 crtc set mode() calls ps to hz() without verifying that the pixclock variable is non-zero. An attacker can trigger this issue by passing a zero pixclock via 'FBIOPUT VSCREENINFO'.Recommendations
Reject zero
pixclock values in the lynxfb ops check var() function.Exploit
Fix
Divide By Zero
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Weakness Enumeration
Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu