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.
Affected products
linux: linux kernel
References9
- git.kernel.org/stable/c/1412ba36597a82e928f20047f41d6c6582dafe8a Patch
- git.kernel.org/stable/c/2f640c6043aeab31a2f607d7605271860c3b11df Patch
- git.kernel.org/stable/c/6144895a4335a2491c282931f1f2fa610b86339f Patch
- git.kernel.org/stable/c/75a1621e4f91310673c9acbcbb25c2a7ff821cd3 Patch
- git.kernel.org/stable/c/779412e0e391fd4a0d12e1d1adaa7bf043de62d7 Patch
- git.kernel.org/stable/c/daf6733bd7c4c5015b431739ac29b0e29021096b Patch
- git.kernel.org/stable/c/124a43550db8a74eef080cd4573a4904efe67029
- git.kernel.org/stable/c/3300b049693138852a4c6738b5f1194a1ee91ddd
- git.kernel.org/stable/c/b285a8f3bbb821a93eb37c2740a68ca1d7112a59
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 November 2026
- CWE
- CWE-369
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