In the Linux kernel, the following vulnerability has been resolved:
virtio-pci: Check if is_avq is NULL
[bug] In the virtio_pci_common.c function vp_del_vqs, vp_dev->is_avq is involved to determine whether it is admin virtqueue, but this function vp_dev->is_avq may be empty. For installations, virtio_pci_legacy does not assign a value to vp_dev->is_avq.
[fix] Check whether it is vp_dev->is_avq before use.
[test] Test with virsh Attach device Before this patch, the following command would crash the guest system
After applying the patch, everything seems to be working fine.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 30, 2024 |
| Suse | — | Upgrade kernel-syms-azureUpgrade kernel-default-extraUpgrade kernel-64kbUpgrade kernel-zfcpdumpUpgrade kernel-macrosUpgrade kernel-docsUpgrade kernel-64kb-develUpgrade kernel-symsUpgrade kernel-azure-develUpgrade kernel-default-develUpgrade kernel-source-azureUpgrade kernel-devel-azureUpgrade kernel-sourceUpgrade kernel-azureUpgrade kernel-develUpgrade kernel-default-baseUpgrade reiserfs-kmp-defaultUpgrade kernel-defaultUpgrade kernel-obs-build | Dec 5, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-image-azure-fdeUpgrade linux-image-raspiUpgrade linux-image-6.8.0-40-genericUpgrade linux-image-ibmUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-40-generic-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1010-oracle-64kUpgrade linux-image-6.8.0-40-lowlatency-64kUpgrade linux-image-azureUpgrade linux-image-6.8.0-1013-awsUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1011-nvidia-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1012-azureUpgrade linux-image-awsUpgrade linux-image-ibm-classicUpgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1012-azure-fdeUpgrade linux-image-6.8.0-1009-raspiUpgrade linux-image-6.8.0-1012-gcpUpgrade linux-image-6.8.0-1011-nvidiaUpgrade linux-image-oracle-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-6.8.0-1010-oemUpgrade linux-image-virtualUpgrade linux-image-nvidia-64kUpgrade linux-image-gkeUpgrade linux-image-genericUpgrade linux-image-6.8.0-1008-gkeUpgrade linux-image-6.8.0-1011-nvidia-lowlatency-64kUpgrade linux-image-oem-24.04Upgrade linux-image-oracleUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1010-ibmUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-gcpUpgrade linux-image-6.8.0-1011-nvidia-lowlatencyUpgrade linux-image-6.8.0-40-lowlatencyUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1010-oracleUpgrade linux-image-virtual-hwe-24.04 | Aug 9, 2024 | Jul 30, 2024 |
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