GHSA-q4fh-xh4r-x3xpCriticalCVSS 9.3

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fix NULL...

Published
August 28, 2026
Last Modified
August 29, 2026

🔗 CVE IDs covered (1)

📋 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.

🔗 References (8)