Improper IRQ Management in Linux Kernel's i40e by Intel
CVE-2025-39911
What is CVE-2025-39911?
The i40e driver in the Linux kernel contains a flaw in the IRQ management process that occurs when the request_irq() function fails during its execution. Specifically, during an error handling path, the driver's incorrect use of the dev_id argument in free_irq() prevents proper deallocation of previously requested IRQs. This flaw can lead to system instability, triggering warnings due to attempts to free already-released IRQs, and potentially interfering with network functionality.
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Affected Version(s)
Linux 493fb30011b3ab5173cef96f1d1ce126da051792 < 13ab9adef3cd386511c930a9660ae06595007f89
Linux 493fb30011b3ab5173cef96f1d1ce126da051792 < 6e4016c0dca53afc71e3b99e24252b63417395df
Linux 493fb30011b3ab5173cef96f1d1ce126da051792