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In the Linux kernel, the following vulnerability has been resolved:
netfilter: conntrack: revert ct extension genid infrastructure
This infrastructure is not used anymore after moving ct timeout and helper to use datapath refcount to track object use.
Revert commit c56716c69ce1 ("netfilter: extensions: introduce extension genid count") this patch disables all ct extensions (leading to NULL) for unconfirmed conntracks, when this is only targeted at ct helper and ct timeout. There is also codebase that dereferences the ct extension without checking for NULL which could lead to crash.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Aug 30, 2026 | Aug 30, 2026 |
| Redhat_linux | — | No solution exists | Sep 1, 2026 | Aug 28, 2026 |
| Ubuntu | — | Upgrade linux-image-ibm-6.8Upgrade linux-image-6.8.0-1067-aws-64kUpgrade linux-image-ibmUpgrade linux-image-azure-lts-24.04Upgrade linux-image-7.0.0-1015-ibmUpgrade linux-image-7.0.0-1008-gkeUpgrade linux-image-generic-64k-6.8Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-virtual-hwe-26.04Upgrade linux-image-7.0.0-1013-oracleUpgrade linux-image-6.8.0-1064-oracle-64kUpgrade linux-image-6.8.1-1062-realtimeUpgrade linux-image-fipsUpgrade linux-image-generic-64kUpgrade linux-image-azureUpgrade linux-image-genericUpgrade linux-image-gkeop-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-7.0.0-1015-oemUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-azure-lts-26.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-gcpUpgrade linux-image-6.8.0-1064-oracleUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-6.8.0-1067-awsUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1071-azureUpgrade linux-image-aws-64k-6.8Upgrade linux-image-gke-64k-7.0Upgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1016-azure-fdeUpgrade linux-image-ibm-classicUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-lowlatencyUpgrade linux-image-aws-6.8Upgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1066-gke-64kUpgrade linux-image-gke-6.8Upgrade linux-image-gke-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-7.0.0-1017-azureUpgrade linux-image-ibm-7.0Upgrade linux-image-azure-fde-7.0Upgrade linux-image-fips-6.8Upgrade linux-image-6.8.0-1067-ibmUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-147-genericUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-gcp-fipsUpgrade linux-image-generic-lpaeUpgrade linux-image-oracle-7.0Upgrade linux-image-6.8.0-147-fipsUpgrade linux-image-gcp-7.0Upgrade linux-image-7.0.0-38-genericUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-azure-fipsUpgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-1014-awsUpgrade linux-image-7.0.0-1014-gcp-64kUpgrade linux-image-6.8.0-1052-gkeopUpgrade linux-image-awsUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-virtual-7.0Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oracle-6.8Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-7.0Upgrade linux-image-azure-7.0Upgrade linux-image-aws-fipsUpgrade linux-image-7.0.0-38-generic-64kUpgrade linux-image-7.0.0-1013-oracle-64kUpgrade linux-image-lowlatency-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-gke-7.0Upgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-64kUpgrade linux-image-6.8.0-1071-gcp-fipsUpgrade linux-image-realtime-6.8.1Upgrade linux-image-oracleUpgrade linux-image-intel-iotgUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-generic-64k-7.0Upgrade linux-image-7.0.0-38-realtimeUpgrade linux-image-gkeUpgrade linux-image-gcp-6.8Upgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-7.0.0-38-realtime-64kUpgrade linux-image-6.8.0-1066-gkeUpgrade linux-image-azure-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-6.8.0-1067-aws-fipsUpgrade linux-image-virtualUpgrade linux-image-gcp-64kUpgrade linux-image-azure-fde-6.8Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-aws-64k-7.0Upgrade linux-image-6.8.0-147-lowlatency-64kUpgrade linux-image-6.8.0-147-lowlatencyUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-6.8.0-1071-azure-fipsUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-oem-26.04aUpgrade linux-image-laptop-23.10Upgrade linux-image-6.8.0-1071-gcp-64kUpgrade linux-image-6.8.0-1071-gcpUpgrade linux-image-7.0.0-1014-gcpUpgrade linux-image-7.0.0-1014-aws-64kUpgrade linux-image-realtimeUpgrade linux-image-kvmUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-aws-7.0Upgrade linux-image-7.0.0-1008-gke-64kUpgrade linux-image-realtime-7.0Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-oem-7.0Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-6.8.0-147-generic-64kUpgrade linux-image-6.8.0-1069-azure-fdeUpgrade linux-image-realtime-64k | Oct 7, 2026 | Oct 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 15, 2026 | Aug 28, 2026 |
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