CVE-2026-31523
MediumSummary
W jądrze Linuxa zidentyfikowano podatność związaną z obsługą kolejek polled w sterowniku nvme-pci. Użytkownik może zmieniać liczbę kolejek polled w czasie rzeczywistym, co może prowadzić do problemów podczas resetu, gdy zadanie o wysokim priorytecie próbuje odpytywać tę kolejkę przed jej aktualizacją przez warstwę blokową.
Risk Assessment
Podatność ta może prowadzić do nieprzewidzianych zachowań systemu, co może wpłynąć na stabilność i wydajność operacji dyskowych. W przypadku wykorzystania tej luki, atakujący może zyskać możliwość zakłócenia działania systemu.
Recommendation
Zaleca się aktualizację jądra Linux do najnowszej wersji, w której ta podatność została załatana. Należy również monitorować systemy pod kątem nieautoryzowanych zmian w konfiguracji kolejek polled.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: ensure we're polling a polled queue A user can change the polled queue count at run time. There's a brief window during a reset where a hipri task may try to poll that queue before the block layer has updated the queue m
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

