In the Linux kernel, the following vulnerability has been resolved:
ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup()
In vti6_tnl_lookup(), when an exact match for a tunnel fails, the code falls back to searching for wildcard tunnels:
- Tunnels matching the packet's local address, with any remote address wildcard remote).
- Tunnels matching the packet's remote address, with any local address (wildcard local).
However, vti6 stores all these different types of tunnels in the same hash table (ip6n->tnls_r_l) prone to hash collisions.
The bug is that the fallback search loops in vti6_tnl_lookup() were missing checks to ensure that the candidate tunnel actually has a wildcard address.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-5.10.259-258.1043Upgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-livepatch-5.15.210-148.245Upgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernel-toolsUpgrade python-perfUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade perf | Jul 8, 2026 | Jul 8, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel6.18-tools-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade python3-perf6.12Upgrade kernel6.12-modules-extra-commonUpgrade bpftool6.12Upgrade bpftool6.18-debuginfoUpgrade kernel6.12-headersUpgrade kernelUpgrade perf6.12Upgrade perf6.18Upgrade microvm-kernel6.18Upgrade kernel-tools-debuginfoUpgrade kernel6.12-toolsUpgrade python3-perf6.18-debuginfoUpgrade kernel6.12-tools-develUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel-livepatch-6.12.94-123.174Upgrade perf6.18-debuginfoUpgrade bpftool6.18Upgrade kernel6.18-debuginfoUpgrade kernel-livepatch-6.18.36-69.134Upgrade kernel6.12-debuginfoUpgrade kernel6.18-modules-extraUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade python3-perf6.18Upgrade kernel6.12-modules-extraUpgrade python3-perf6.12-debuginfoUpgrade kernel6.18-tools-develUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-modules-extraUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade kernel-livepatch-6.1.176-220.358Upgrade perf6.12-debuginfoUpgrade kernel-toolsUpgrade kernel-modules-extra-commonUpgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.18Upgrade kernel6.18-toolsUpgrade bpftool6.12-debuginfoUpgrade bpftoolUpgrade kernel6.18-develUpgrade kernel6.12-develUpgrade kernel-develUpgrade perfUpgrade kernel6.18-headersUpgrade kernel6.12Upgrade kernel6.18-modules-extra-commonUpgrade python3-perf-debuginfoUpgrade python3-perfUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel-tools-devel | Jul 8, 2026 | Jun 25, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 5, 2026 | Jul 5, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jun 25, 2026 |
| Ubuntu | — | Upgrade linux-image-azure-cvmUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-1005-gke-64kUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-6.8.0-142-fipsUpgrade linux-image-5.15.0-1108-intel-iot-realtimeUpgrade linux-image-5.15.0-194-lowlatency-64kUpgrade linux-image-6.8.0-1068-azure-fipsUpgrade linux-image-6.8.0-1069-gcpUpgrade linux-image-7.0.0-1011-azureUpgrade linux-image-generic-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-gcp-lts-18.04Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-azure-fipsUpgrade linux-image-gcpUpgrade linux-image-5.15.0-1122-azure-fipsUpgrade linux-image-7.0.0-1016-raspi-realtimeUpgrade linux-image-aws-5.15Upgrade linux-image-aws-fips-5.15Upgrade linux-image-7.0.0-1010-awsUpgrade linux-image-5.15.0-1110-ibmUpgrade linux-image-5.15.0-1112-gkeUpgrade linux-image-6.8.0-142-lowlatency-64kUpgrade linux-image-6.8.0-2054-raspi-realtimeUpgrade linux-image-7.0.0-1005-gkeUpgrade linux-image-oem-26.04aUpgrade linux-image-4.15.0-1179-kvmUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-5.15.0-1079-xilinx-zynqmpUpgrade linux-image-aws-64kUpgrade linux-image-nvidia-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-nvidia-bosUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-azure-5.15Upgrade linux-image-azure-lts-18.04Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-ibm-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-virtual-6.8Upgrade linux-image-oem-7.0Upgrade linux-image-5.15.0-194-generic-lpaeUpgrade linux-image-laptop-23.10Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-azureUpgrade linux-image-kvmUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-azure-fdeUpgrade linux-image-5.15.0-194-generic-64kUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-4.15.0-1190-gcpUpgrade linux-image-generic-64k-5.15Upgrade linux-image-azure-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-realtime-64kUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oem-24.04dUpgrade linux-image-5.15.0-1115-realtimeUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-4.15.0-260-lowlatencyUpgrade linux-image-7.0.0-29-generic-64kUpgrade linux-image-oem-20.04cUpgrade linux-image-realtimeUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-aws-lts-18.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-nvidia-64kUpgrade linux-image-fips-6.8Upgrade linux-image-gke-64k-7.0Upgrade linux-image-gcp-5.15Upgrade linux-image-raspiUpgrade linux-image-raspi-realtimeUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-7.0.0-1009-oracleUpgrade linux-image-6.8.0-1063-nvidiaUpgrade linux-image-6.8.0-1064-gke-64kUpgrade linux-image-6.8.0-1068-gcp-fipsUpgrade linux-image-7.0.0-1009-oracle-64kUpgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-gke-7.0Upgrade linux-image-5.15.0-194-lowlatencyUpgrade linux-image-6.8.0-1035-nvidia-tegraUpgrade linux-image-6.8.0-1050-gkeopUpgrade linux-image-7.0.0-1011-ibmUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-7.0.0-1010-gcpUpgrade linux-image-oem-26.04Upgrade linux-image-6.8.0-142-genericUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-azure-7.0Upgrade linux-image-azure-fips-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-generic-7.0Upgrade linux-image-raspi-7.0Upgrade linux-image-5.15.0-1111-intel-iotgUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-194-genericUpgrade linux-image-oracle-5.15Upgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-gke-64k-6.8Upgrade linux-image-oem-20.04dUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-generic-64k-7.0Upgrade linux-image-raspi-6.8Upgrade linux-image-realtime-6.8.1Upgrade linux-image-oracle-64kUpgrade linux-image-virtual-5.15Upgrade linux-image-azure-4.15Upgrade linux-image-gcp-64kUpgrade linux-image-oracle-6.8Upgrade linux-image-7.0.0-1010-gcp-64kUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-realtime-5.15Upgrade linux-image-oem-20.04Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-oem-24.04cUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-oem-24.04aUpgrade linux-image-azure-fde-6.8Upgrade linux-image-5.15.0-1099-gkeopUpgrade linux-image-awsUpgrade linux-image-5.15.0-1117-gcpUpgrade linux-image-4.15.0-1207-azureUpgrade linux-image-oem-20.04bUpgrade linux-image-realtime-7.0Upgrade linux-image-aws-fipsUpgrade linux-image-azure-lts-22.04Upgrade linux-image-oemUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-gcp-fips-4.15Upgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-6.8.0-1063-nvidia-lowlatency-64kUpgrade linux-image-5.15.0-1122-azureUpgrade linux-image-gkeopUpgrade linux-image-gkeUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-intelUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1066-azure-fdeUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-generic-5.15Upgrade linux-image-6.8.0-1068-azureUpgrade linux-image-6.8.0-1065-raspiUpgrade linux-image-6.8.0-1063-nvidia-lowlatencyUpgrade linux-image-oem-24.04bUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.15.0-1116-aws-64kUpgrade linux-image-aws-4.15Upgrade linux-image-7.0.0-29-genericUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.15.0-1121-azure-fdeUpgrade linux-image-gke-64kUpgrade linux-image-aws-hweUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-5.15.0-1108-kvmUpgrade linux-image-4.15.0-2098-gcp-fipsUpgrade linux-image-ibm-classicUpgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-azure-fde-5.15Upgrade linux-image-7.0.0-1010-azure-fdeUpgrade linux-image-5.15.0-1116-awsUpgrade linux-image-oracle-7.0Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidiaUpgrade linux-image-ibm-7.0Upgrade linux-image-generic-64kUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-7.0.0-1010-oemUpgrade linux-image-6.8.0-142-lowlatencyUpgrade linux-image-6.8.0-142-generic-64kUpgrade linux-image-6.8.0-1062-oracleUpgrade linux-image-virtual-7.0Upgrade linux-image-virtualUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-azure-fde-7.0Upgrade linux-image-6.8.0-1069-gcp-64kUpgrade linux-image-nvidia-tegraUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.15.0-1113-oracleUpgrade linux-image-4.15.0-260-genericUpgrade linux-image-generic-lpaeUpgrade linux-image-azure-lts-26.04Upgrade linux-image-aws-64k-5.15Upgrade linux-image-virtual-hwe-26.04Upgrade linux-image-5.15.0-1116-gcp-fipsUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-lowlatency-5.15Upgrade linux-image-lowlatencyUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-ibm-5.15Upgrade linux-image-ibmUpgrade linux-image-gke-5.15Upgrade linux-image-virtual-hwe-16.04Upgrade linux-image-gcp-4.15Upgrade linux-image-fipsUpgrade linux-image-7.0.0-29-realtimeUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-1016-raspiUpgrade linux-image-4.15.0-1197-awsUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-genericUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-gcp-6.8Upgrade linux-image-7.0.0-29-realtime-64kUpgrade linux-image-7.0.0-1010-aws-64kUpgrade linux-image-6.8.1-1060-realtimeUpgrade linux-image-6.8.0-1064-gkeUpgrade linux-image-6.8.0-1035-nvidia-tegra-rtUpgrade linux-image-5.15.0-1116-aws-fipsUpgrade linux-image-oem-24.04Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-kvm-5.15Upgrade linux-image-gkeop-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-azure-fips-5.15Upgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-6.8.0-1065-ibmUpgrade linux-image-6.8.0-1062-oracle-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-oracleUpgrade linux-image-6.8.0-1063-nvidia-64kUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-gcp-7.0 | Aug 13, 2026 | Aug 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 10, 2026 | Jun 25, 2026 |
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