CVE-2026-31603

MEDIUM

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

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: staging: sm750fb: fix division by zero in ps_to_hz() ps_to_hz() is called from hw_sm750_crtc_set_mode() without validating that pixclock is non-zero. A zero pixclock passed via FBIOPUT_VSCREENINFO causes a division by zero. Fix by rejecting zero pixclock in lynxfb_ops_check_var(), consistent with other framebuffer drivers.

References (9)

Core 9

Scores

CVSS v3 5.5
EPSS 0.0013
EPSS Percentile 2.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-369
Status published
Products (34)
linux/Kernel 4.1.0 - 5.10.258linux
linux/Kernel 5.11.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.24linux
linux/Kernel 6.19.0 - 6.19.14linux
linux/Kernel 6.2.0 - 6.6.136linux
linux/Kernel 6.20.0 - 7.0.1linux
linux/Kernel 6.7.0 - 6.12.83linux
Linux/Linux < 4.1
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 1412ba36597a82e928f20047f41d6c6582dafe8a
... and 24 more
Published Apr 24, 2026
Tracked Since Apr 24, 2026