CVE-2025-38283: hisi_acc_vfio_pci: bugfix live migration function without VF device driver
In the Linux kernel, the following vulnerability has been resolved:
hisiaccvfiopci: bugfix live migration function without VF device driver
If the VF device driver is not loaded in the Guest OS and we attempt to perform device data migration, the address of the migrated data will be NULL. The live migration recovery operation on the destination side will access a null address value, which will cause access errors.
Therefore, live migration of VMs without added VF device drivers does not require device data migration. In addition, when the queue address data obtained by the destination is empty, device queue recovery processing will not be performed.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-38283?
CVE-2025-38283 has been rated as a medium-level severity vulnerability due to its potential impact on live migration functionality in the Linux kernel.
How do I fix CVE-2025-38283?
To resolve CVE-2025-38283, ensure that the VF device driver is loaded in the Guest OS before performing device data migration.
Which versions of the Linux kernel are affected by CVE-2025-38283?
CVE-2025-38283 affects specific versions of the Linux kernel that implement the hisi_acc_vfio_pci functionality.
What is the vulnerability type of CVE-2025-38283?
CVE-2025-38283 is classified as a bugfix that pertains to a defect in the live migration function involving the VF device driver.
Is CVE-2025-38283 publicly known?
Yes, CVE-2025-38283 is a publicly disclosed vulnerability in the Linux kernel.