GHSA-rfh9-x593-fmprMediumCVSS 5.5

In the Linux kernel, the following vulnerability has been resolved: staging: sm750fb: fix...

Published
April 24, 2026
Last Modified
June 1, 2026

🔗 CVE IDs covered (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 (11)