CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's KVM subsystem, specifically in the handling of AIBV allocation failures, where a NULL pointer dereference can occur if the airq_iv_create() function fails. This oversight can lead to system instability or crashes when the dereferenced pointer is accessed. Organizations using Linux in virtualized environments, particularly those relying on KVM for s390 architecture, should prioritize addressing this issue to maintain system reliability and security.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fix NULL dereference on AIBV allocation failure The airq_iv_create() can return NULL on failure, but the return value was never checked. If it fails, zdev->aibv will be NULL and fail when dereferenced in kvm_zpci_set_airq(). Add a NULL check and free the previously allocated AISB bit and zdev->aisb on failure.