CVE-2026-80684

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < 96099486b63985801c9c6ef22505e9aa635b2d20affected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < 0a95abe964400771ad82b027d7b84a0d183cd0dbaffected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < df947d85e164a50a29d43a96e814f69ab1d0f7edaffected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < e137d082325bbcae780087b57501d38585e625d9affected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < d1a103dc9016c25e7423ce5841a5cc2df76d59f3affected
LinuxLinux3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc < 8bf09b9b7d3232806df95f409581f8a9fd99a3faaffected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.183 <= 6.1.*unaffected
LinuxLinux6.6.151 <= 6.6.*unaffected
LinuxLinux6.12.103 <= 6.12.*unaffected
LinuxLinux6.18.44 <= 6.18.*unaffected
LinuxLinux7.1.8 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References