CVE-2026-31605
MediumCVSS 5.5Summary
W jądrze Linuksa rozwiązano podatność w sterowniku udlfb, która mogła prowadzić do błędu dzielenia przez zero podczas operacji na FBIOPUT_VSCREENINFO. Problem ten był podobny do wcześniejszego błędu w commit 19f953e74356.
Risk Assessment
W przypadku wystąpienia tej podatności, system mógłby ulec awarii, co prowadziłoby do przerwy w działaniu usług. Może to wpłynąć na stabilność i dostępność systemów korzystających z tego sterownika.
Recommendation
Zaleca się aktualizację jądra Linuksa do najnowszej wersji, aby usunąć tę podatność i zapobiec potencjalnym awariom systemu.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: fbdev: udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO Much like commit 19f953e74356 ("fbdev: fb_pm2fb: Avoid potential divide by zero error"), we also need to prevent that same crash from happening in the udlfb driver as it uses pixclock directly when dividing, which will crash.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS