CVE-2026-31603

kernel: staging: sm750fb: fix division by zero in ps_to_hz()

Loading…

Severity

Unknown

Red Hat Product Security

—

CVSS

Review impact separately from score.

Published · April 24, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's sm750fb framebuffer driver. A local user can exploit this vulnerability by providing a specially crafted input with a zero pixclock value via the FBIOPUT_VSCREENINFO ioctl. This leads to a division-by-zero error in the ps_to_hz() function, which can result in a system crash and a Denial of Service (DoS).

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-369 · Divide By Zero