In the Linux kernel, the following vulnerability has been resolved:
vfio/pci: Clean up DMABUFs before disabling function
On device shutdown, make vfio_pci_core_close_device() call vfio_pci_dma_buf_cleanup() before the function is disabled via vfio_pci_core_disable(). This ensures that all access via DMABUFs is revoked before the function's BARs become inaccessible.
This fixes an issue where, if the function is disabled first, a tiny window exists in which the function's MSE is cleared and yet BARs could still be accessed via the DMABUF. The resources would also be freed and up for grabs by a different driver.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rt | Sep 10, 2026 | Jun 26, 2026 |
| Rocky_linux | — | Upgrade kernel-debuginfo-common-s390xUpgrade kernel-rt-debug-develUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel-debug-debuginfoUpgrade kernel-debug-modules-extraUpgrade kernel-debug-develUpgrade kernel-rt-develUpgrade kernel-rt-modules-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-zfcpdump-develUpgrade kernel-rt-debug-debuginfoUpgrade kernel-rt-modulesUpgrade kernel-rtUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-rt-debuginfoUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-debug-modules-extraUpgrade kernel-debug-modules-coreUpgrade kernel-debug-coreUpgrade kernel-rt-debug-modules-coreUpgrade kernel-zfcpdumpUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-uki-virtUpgrade kernel-debug-uki-virtUpgrade kernel-coreUpgrade rtlaUpgrade kernel-rt-debugUpgrade kernel-debug-modulesUpgrade kernel-debugUpgrade kernel-rt-debug-coreUpgrade kernel-tools-debuginfoUpgrade kernel-zfcpdump-modulesUpgrade python3-perf-debuginfoUpgrade kernel-modules-extraUpgrade kernel-modules-extra-matchedUpgrade kernel-modulesUpgrade kernel-rt-coreUpgrade kernel-devel-matchedUpgrade kernel-develUpgrade kernel-uki-virt-addonsUpgrade libperf-debuginfoUpgrade perfUpgrade kernel-modules-coreUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-zfcpdump-debuginfoUpgrade libperfUpgrade python3-perfUpgrade kernel-tools-libs-develUpgrade kernel-debug-devel-matchedUpgrade kernel-rt-modules-extraUpgrade perf-debuginfoUpgrade kernelUpgrade rvUpgrade kernel-zfcpdump-core | Sep 15, 2026 | Sep 10, 2026 |
| Ubuntu | — | Upgrade linux-image-azureUpgrade linux-image-nvidia-64kUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-gcp-64kUpgrade linux-image-gkeUpgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-generic-64kUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-nvidia-bos-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-aws-64kUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-oem-24.04aUpgrade linux-image-generic-7.0Upgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-oem-7.0Upgrade linux-image-raspiUpgrade linux-image-oem-24.04Upgrade linux-image-oem-26.04aUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-7.0Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-7.0.0-1003-gkeUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-gke-7.0Upgrade linux-image-oem-24.04dUpgrade linux-image-generic-64k-7.0Upgrade linux-image-oem-24.04cUpgrade linux-image-oem-26.04Upgrade linux-image-azure-7.0Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-gke-64k-7.0Upgrade linux-image-gcpUpgrade linux-image-genericUpgrade linux-image-nvidiaUpgrade linux-image-gke-64kUpgrade linux-image-realtime-64kUpgrade linux-image-gcp-7.0Upgrade linux-image-awsUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-1008-gcp-64kUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-oem-24.04bUpgrade linux-image-realtimeUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-azure-fdeUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-7.0.0-28-generic-64kUpgrade linux-image-7.0.0-1003-gke-64kUpgrade linux-image-realtime-7.0Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-ibmUpgrade linux-image-7.0.0-28-realtimeUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-virtual-7.0Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-7.0.0-28-realtime-64kUpgrade linux-image-7.0.0-1009-awsUpgrade linux-image-7.0.0-1009-oemUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-28-genericUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-1008-gcpUpgrade linux-image-oracleUpgrade linux-image-raspi-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-virtualUpgrade linux-image-azure-fde-7.0 | Jul 20, 2026 | Jun 26, 2026 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub