CVE-2025-40032
MediumSummary
W jądrze Linuxa zidentyfikowano podatność związaną z brakiem sprawdzenia wartości NULL dla kanałów DMA w strukturze pci_epf_test przed ich zwolnieniem. Pola dma_chan_tx i dma_chan_rx mogą być NULL nawet po inicjalizacji EPF.
Risk Assessment
Brak odpowiedniego sprawdzenia wartości NULL może prowadzić do nieprzewidzianych błędów w systemie, co może wpłynąć na stabilność i bezpieczeństwo aplikacji korzystających z tych kanałów.
Recommendation
Zaleca się aktualizację jądra Linux do najnowszej wersji, w której ta podatność została naprawiona, aby zapewnić odpowiednie sprawdzenie wartości NULL przed zwolnieniem kanałów DMA.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-test: Add NULL check for DMA channels before release The fields dma_chan_tx and dma_chan_rx of the struct pci_epf_test can be NULL even after EPF initialization. Then it is prudent to check that they have no
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

