CVE-2026-80684 — KVM: s390: pci: Fix NULL dereference on AIBV allocation failure
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 fai…
Published: 2026-08-28 · CVSS: 9.3 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7