In the Linux kernel, the following vulnerability has been resolved:
ixgbevf: fix mailbox API compatibility by negotiating supported features
There was backward compatibility in the terms of mailbox API. Various drivers from various OSes supporting 10G adapters from Intel portfolio could easily negotiate mailbox API.
This convention has been broken since introducing API 1.4. Commit 0062e7cc955e ("ixgbevf: add VF IPsec offload code") added support for IPSec which is specific only for the kernel ixgbe driver. None of the rest of the Intel 10G PF/VF drivers supports it. And actually lack of support was not included in the IPSec implementation - there were no such code paths. No possibility to negotiate support for the feature was introduced along with introduction of the feature itself.
Commit 339f28964147 ("ixgbevf: Add support for new mailbox communication between PF and VF") increasing API version to 1.5 did the same - it introduced code supported specifically by the PF ESX driver. It altered API version for the VF driver in the same time not touching the version defined for the PF ixgbe driver. It led to additional discrepancies, as the code provided within API 1.6 cannot be supported for Linux ixgbe driver as it causes crashes.
The issue was noticed some time ago and mitigated by Jake within the commit d0725312adf5 ("ixgbevf: stop attempting IPSEC offload on Mailbox API 1.5"). As a result we have regression for IPsec support and after increasing API to version 1.6 ixgbevf driver stopped to support ESX MBX.
To fix this mess add new mailbox op asking PF driver about supported features. Basing on a response determine whether to set support for IPSec and ESX-specific enhanced mailbox.
New mailbox op, for compatibility purposes, must be added within new API revision, as API version of OOT PF & VF drivers is already increased to 1.6 and doesn't incorporate features negotiate op.
Features negotiation mechanism gives possibility to be extended with new features when needed in the future.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel-livepatch-6.1.158-178.288Upgrade kernel6.12-toolsUpgrade kernel6.12-headersUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-develUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-libbpfUpgrade kernel6.12-tools-develUpgrade kernel-tools-develUpgrade kernel-debuginfoUpgrade kernel-libbpf-staticUpgrade python3-perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade python3-perfUpgrade kernel-modules-extraUpgrade kernel-toolsUpgrade python3-perf6.12Upgrade bpftoolUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel6.12-tools-debuginfoUpgrade kernel-libbpf-debuginfoUpgrade perf6.12-debuginfoUpgrade perf6.12Upgrade kernel-livepatch-6.12.55-74.119Upgrade kernel-libbpf-develUpgrade kernel6.12-modules-extraUpgrade perf-debuginfoUpgrade kernel6.12-libbpfUpgrade bpftool6.12-debuginfoUpgrade bpftool6.12Upgrade kernel6.12-debuginfoUpgrade bpftool-debuginfoUpgrade kernel6.12Upgrade kernel-modules-extra-commonUpgrade kernel6.12-modules-extra-commonUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-headers | Dec 9, 2025 | Oct 30, 2025 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Nov 13, 2025 | Nov 13, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade bpftool | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel | Feb 3, 2026 | Feb 2, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Dec 11, 2025 | Oct 30, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 30, 2025 |
| Suse | — | Upgrade kernel-64kb-develUpgrade kernel-develUpgrade kernel-default-develUpgrade kernel-default-baseUpgrade kernel-64kbUpgrade reiserfs-kmp-defaultUpgrade kernel-docsUpgrade kernel-zfcpdumpUpgrade kernel-symsUpgrade kernel-obs-buildUpgrade kernel-macrosUpgrade kernel-defaultUpgrade kernel-sourceUpgrade kernel-default-extra | Dec 5, 2025 | Nov 11, 2025 |
| Ubuntu | — | Upgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-oracleUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-realtime-6.8.1Upgrade linux-image-oracle-6.17Upgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-virtual-6.17Upgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-aws-64kUpgrade linux-image-kvmUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-gke-6.8Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-oem-22.04dUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-106-fipsUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gke-64k-6.8Upgrade linux-image-nvidia-64kUpgrade linux-image-raspi-6.8Upgrade linux-image-xilinx-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-gcp-6.17Upgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-aws-6.17Upgrade linux-image-gke-64kUpgrade linux-image-raspiUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-realtimeUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-6.17.0-1007-awsUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-azureUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-oem-6.17Upgrade linux-image-aws-fips-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-aws-lts-24.04Upgrade linux-image-awsUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-realtime-6.17Upgrade linux-image-raspi-6.17Upgrade linux-image-aws-64k-6.17Upgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-oracle-6.8Upgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-generic-64k-6.17Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gkeUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-6.8.0-1050-awsUpgrade linux-image-fips-6.8Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-intel-iotgUpgrade linux-image-generic-lpaeUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-generic-6.8Upgrade linux-image-generic-6.17Upgrade linux-image-azure-fips-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-azure-6.17Upgrade linux-image-aws-fipsUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-lowlatency-64kUpgrade linux-image-ibmUpgrade linux-image-virtualUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-generic-64kUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-azure-lts-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-gcp-fipsUpgrade linux-image-fipsUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-aws-6.8Upgrade linux-image-6.17.0-1008-azureUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-gcpUpgrade linux-image-raspi-realtimeUpgrade linux-image-xilinxUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-ibm-6.8Upgrade linux-image-genericUpgrade linux-image-nvidiaUpgrade linux-image-generic-64k-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-lowlatency-6.8Upgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-gkeop | Feb 13, 2026 | Feb 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Feb 9, 2026 | Oct 30, 2025 |
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