The vulnerability of the hvpciprobe() function in the drivers/pci/controller/pci-hyperv.c file of the Linux operating system’s PCI device driver module allows a hacker to cause a service failure.

The vulnerability of the hvpciprobe function in the drivers/pci/controller/pci-hyperv.c file of the Linux kernel’s PCI device driver module is related to the lack of lock checking. Exploiting this vulnerability could allow an attacker to cause a service failure...

EUVD-2026-27604

In the Linux kernel, the following vulnerability has been resolved: PCI: hv: Fix double idafree in hvpciprobe error path If hvpciprobe fails after storing the domain number in hbus-bridge-domainnr, there is a call to free this domainnr via pcibusreleaseemuldomainnr, however, during cleanup, the...