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 kernel6.12-debuginfoUpgrade kernel6.12-libbpfUpgrade bpftool-debuginfoUpgrade kernel-modules-extra-commonUpgrade kernel-libbpf-develUpgrade kernel6.12Upgrade bpftool6.12Upgrade kernel-livepatch-6.12.55-74.119Upgrade bpftool6.12-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernelUpgrade kernel6.12-debuginfo-common-aarch64Upgrade perf6.12Upgrade perf-debuginfoUpgrade kernel6.12-modules-extraUpgrade kernel6.12-libbpf-staticUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-toolsUpgrade python3-perfUpgrade kernel-modules-extraUpgrade kernel-libbpfUpgrade bpftoolUpgrade kernel-livepatch-6.1.158-178.288Upgrade kernel6.12-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade kernel-develUpgrade python3-perf6.12Upgrade perfUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade python3-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-libbpf-debuginfoUpgrade kernel6.12-debuginfo-common-x86_64Upgrade perf6.12-debuginfoUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-develUpgrade kernel-libbpf-staticUpgrade kernel6.12-headers | Dec 9, 2025 | Oct 30, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Nov 13, 2025 | Nov 13, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade kernel-tools-libsUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernel-tools | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade bpftoolUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade python3-perf | 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-zfcpdumpUpgrade kernel-symsUpgrade kernel-64kb-develUpgrade kernel-64kbUpgrade reiserfs-kmp-defaultUpgrade kernel-default-baseUpgrade kernel-default-develUpgrade kernel-develUpgrade kernel-docsUpgrade kernel-default-extraUpgrade kernel-sourceUpgrade kernel-obs-buildUpgrade kernel-macrosUpgrade kernel-default | Dec 5, 2025 | Nov 11, 2025 |
| Ubuntu | — | Upgrade linux-image-gke-64kUpgrade linux-image-gke-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-realtime-6.8.1Upgrade linux-image-virtual-6.8Upgrade linux-image-oracleUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-gkeUpgrade linux-image-realtimeUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-generic-64k-6.17Upgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-oracle-6.8Upgrade linux-image-awsUpgrade linux-image-virtual-6.17Upgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-kvmUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-raspi-6.8Upgrade linux-image-raspiUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-realtime-6.17Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-gke-64k-6.8Upgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-azureUpgrade linux-image-azure-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-gcp-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-6.17Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-aws-64kUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-gcp-6.8Upgrade linux-image-xilinx-6.8Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-raspi-6.17Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-aws-64k-6.17Upgrade linux-image-aws-6.17Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-oem-22.04dUpgrade linux-image-oem-6.17Upgrade linux-image-gcp-6.17Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-xilinxUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-nvidiaUpgrade linux-image-ibm-6.8Upgrade linux-image-genericUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-ibmUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-gcp-fipsUpgrade linux-image-oem-22.04aUpgrade linux-image-aws-fipsUpgrade linux-image-azure-lts-24.04Upgrade linux-image-oem-22.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-generic-6.17Upgrade linux-image-virtualUpgrade linux-image-lowlatency-64kUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-fipsUpgrade linux-image-aws-64k-6.8Upgrade linux-image-azure-6.17Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-azure-fips-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-fips-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-oem-22.04bUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-gcpUpgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1050-awsUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-gkeopUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-64k-hwe-22.04 | 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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