CVE-2026-31603
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.
Does this matter?
Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-369
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/124a43550db8a74eef080cd4573a4904efe67029
- https://git.kernel.org/stable/c/1412ba36597a82e928f20047f41d6c6582dafe8aPatch
- https://git.kernel.org/stable/c/2f640c6043aeab31a2f607d7605271860c3b11dfPatch
- https://git.kernel.org/stable/c/3300b049693138852a4c6738b5f1194a1ee91ddd
- https://git.kernel.org/stable/c/6144895a4335a2491c282931f1f2fa610b86339fPatch
- https://git.kernel.org/stable/c/75a1621e4f91310673c9acbcbb25c2a7ff821cd3Patch
- https://git.kernel.org/stable/c/779412e0e391fd4a0d12e1d1adaa7bf043de62d7Patch
- https://git.kernel.org/stable/c/b285a8f3bbb821a93eb37c2740a68ca1d7112a59
- https://git.kernel.org/stable/c/daf6733bd7c4c5015b431739ac29b0e29021096bPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.