CVE-2026-64474
kernel: vfio: prevent infinite loop in vfio_mig_get_next_state() on blocked arc
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 25, 2026
Updated · July 29, 2026
Description
A flaw was found in the Linux kernel's Virtual Function I/O (VFIO) device migration feature. The vfio_mig_get_next_state() function, responsible for managing device migration states, contains an infinite loop. This occurs when processing certain blocked transitions, causing the system to hold a driver state mutex indefinitely. This can lead to a soft lockup of the system and potentially a kernel panic, resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')