In the Linux kernel, the following vulnerability has been resolved:
pppoe: reload header pointer after dev_hard_header()
pppoe_sendmsg() saves a pointer to the PPPoE header before calling dev_hard_header(). Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it.
This can happen when a send is blocked in copy_from_user() while the first non-Ethernet port is added to an empty team device. The team's delegated GRE header callback then expands the skb head. PPPoE subsequently writes six bytes through the stale pointer into the freed head.
Reload the PPPoE header through the skb's network-header offset after device header creation. pskb_expand_head() updates that offset when it relocates the head.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-64k-modules-extraUpgrade kernel-rt-64k-debug-modules-coreUpgrade kernel-rt-debug-modules-coreUpgrade kernel-debugUpgrade rtlaUpgrade kernel-modulesUpgrade kernel-rt-modules-coreUpgrade rvUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debug-modules-extraUpgrade kernel-rt-modulesUpgrade kernel-64k-debug-modules-coreUpgrade kernel-debug-develUpgrade kernel-64k-modules-coreUpgrade kernel-64k-debug-develUpgrade kernel-zfcpdump-modulesUpgrade kernel-abi-stablelistsUpgrade kernel-rt-64k-coreUpgrade perfUpgrade kernel-docUpgrade kernel-uki-virt-addonsUpgrade kernel-rt-debug-modules-extraUpgrade kernel-zfcpdumpUpgrade kernel-debug-uki-virtUpgrade kernel-coreUpgrade kernel-modules-coreUpgrade kernel-64k-debugUpgrade kernel-rt-debug-modulesUpgrade kernel-64k-debug-modules-extraUpgrade libperfUpgrade kernel-debug-modules-coreUpgrade kernel-64k-develUpgrade kernel-uki-virtUpgrade kernel-modules-extraUpgrade kernel-zfcpdump-develUpgrade kernel-rtUpgrade kernel-rt-debug-develUpgrade kernel-headersUpgrade kernel-toolsUpgrade kernel-devel-matchedUpgrade kernel-rt-64k-modules-coreUpgrade kernel-debug-coreUpgrade kernel-rt-debug-coreUpgrade kernel-rt-debugUpgrade kernel-64k-debug-coreUpgrade kernel-rt-develUpgrade kernel-rt-64k-modulesUpgrade kernel-develUpgrade kernel-rt-64k-debug-modulesUpgrade kernel-64k-devel-matchedUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-tools-libsUpgrade kernel-rt-64k-develUpgrade kernel-rt-64k-debug-develUpgrade kernel-tools-libs-develUpgrade kernel-rt-64kUpgrade kernel-rt-modules-extraUpgrade kernel-rt-64k-debug-modules-extraUpgrade kernel-64k-coreUpgrade kernelUpgrade bpftoolUpgrade kernel-debug-modulesUpgrade kernel-debug-devel-matchedUpgrade kernel-zfcpdump-coreUpgrade kernel-rt-64k-modules-extraUpgrade python3-perfUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-64k-modulesUpgrade kernel-cross-headersUpgrade kernel-64kUpgrade kernel-64k-debug-modulesUpgrade kernel-rt-64k-debugUpgrade kernel-rt-coreUpgrade kernel-rt-64k-debug-core | Oct 11, 2026 | Sep 24, 2026 |
| Amazon Linux Ami 2 | — | Upgrade bpftoolUpgrade perf-debuginfoUpgrade kernel-livepatch-4.14.355-284.746Upgrade kernel-livepatch-5.10.265-265.1078Upgrade kernel-toolsUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-headersUpgrade kernelUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade perfUpgrade kernel-tools-develUpgrade python-perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-devel | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel6.12-headersUpgrade kernel-livepatch-6.12.103-127.188Upgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-develUpgrade bpftool6.18-debuginfoUpgrade kernel6.12Upgrade bpftool6.12Upgrade kernel6.18-debuginfo-common-aarch64Upgrade perf6.12Upgrade bpftool6.12-debuginfoUpgrade bpftool6.18Upgrade kernel6.18-modules-extra-commonUpgrade kernel6.18-modules-extraUpgrade python3-perf6.12-debuginfoUpgrade perf6.12-debuginfoUpgrade kernel6.18-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-livepatch-6.18.44-99.149Upgrade kernel6.18-toolsUpgrade kernel6.18-headersUpgrade kernel6.12-develUpgrade python3-perf6.18-debuginfoUpgrade microvm-kernel6.18Upgrade kernel6.12-debuginfoUpgrade python3-perf6.18Upgrade kernel6.12-tools-debuginfoUpgrade perf6.18Upgrade kernel6.18-tools-debuginfoUpgrade python3-perf6.12Upgrade kernel6.12-tools-develUpgrade kernel6.18Upgrade kernel6.12-modules-extraUpgrade kernel6.12-toolsUpgrade perf6.18-debuginfoUpgrade kernel6.18-tools-develUpgrade kernel6.12-debuginfo-common-aarch64 | Sep 1, 2026 | Aug 10, 2026 |
| Debian | — | Upgrade linux-6.12Upgrade linux | Aug 11, 2026 | Aug 11, 2026 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Oct 22, 2026 | Aug 10, 2026 |
| Redhat Openshift | — | Upgrade ose-rhel-coreos | Oct 13, 2026 | Aug 10, 2026 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | Aug 13, 2026 | Aug 10, 2026 |
| Rocky_linux | — | Upgrade kernel-rt-modules-coreUpgrade kernel-uki-virt-addonsUpgrade kernel-zfcpdump-debuginfoUpgrade libperf-debuginfoUpgrade python3-perfUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-debug-modules-extraUpgrade kernel-debug-devel-matchedUpgrade kernel-tools-libs-develUpgrade libperfUpgrade kernel-modulesUpgrade kernel-rt-modulesUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-debug-kvmUpgrade kernel-modules-coreUpgrade kernel-zfcpdump-coreUpgrade perfUpgrade kernel-zfcpdump-develUpgrade kernel-devel-matchedUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-debuginfo-common-s390xUpgrade kernel-debug-modules-extraUpgrade kernel-rtUpgrade kernel-rt-debug-develUpgrade perf-debuginfoUpgrade kernel-zfcpdumpUpgrade kernel-rt-modules-extraUpgrade kernel-rt-debuginfoUpgrade kernel-rt-debug-modulesUpgrade bpftoolUpgrade kernel-rt-debug-coreUpgrade kernel-rt-debugUpgrade kernel-rt-kvmUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debug-modules-coreUpgrade bpftool-debuginfoUpgrade kernel-tools-libsUpgrade python3-perf-debuginfoUpgrade kernel-develUpgrade kernel-debug-coreUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debugUpgrade kernel-coreUpgrade kernel-toolsUpgrade kernel-rt-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debug-develUpgrade kernel-debug-debuginfoUpgrade kernel-rt-coreUpgrade kernel-tools-debuginfoUpgrade kernel-debug-uki-virtUpgrade rtlaUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-modules-extraUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-modules-extra-matchedUpgrade kernel-debug-modulesUpgrade kernel-debuginfoUpgrade rv | Sep 28, 2026 | Sep 26, 2026 |
| Ubuntu | — | Upgrade linux-image-6.8.0-1071-gcp-64kUpgrade linux-image-aws-6.8Upgrade linux-image-6.8.0-1064-oracleUpgrade linux-image-azure-fips-5.15Upgrade linux-image-5.15.0-1116-realtimeUpgrade linux-image-5.15.0-1123-azureUpgrade linux-image-5.15.0-198-genericUpgrade linux-image-generic-lpaeUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-5.15.0-1100-gkeopUpgrade linux-image-gke-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-gke-5.15Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-ibm-7.0Upgrade linux-image-5.15.0-1112-intel-iotgUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-intelUpgrade linux-image-kvm-5.15Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-5.15.0-195-lowlatency-64kUpgrade linux-image-5.15.0-198-generic-64kUpgrade linux-image-5.15.0-1117-awsUpgrade linux-image-6.8.0-1067-ibmUpgrade linux-image-oem-26.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-5.15.0-1111-ibmUpgrade linux-image-aws-fipsUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-7.0.0-38-realtimeUpgrade linux-image-gcp-7.0Upgrade linux-image-5.15.0-1113-gkeUpgrade linux-image-5.15.0-1123-azure-fipsUpgrade linux-image-7.0.0-1016-azure-fdeUpgrade linux-image-generic-64kUpgrade linux-image-azure-fde-7.0Upgrade linux-image-azure-lts-24.04Upgrade linux-image-azure-fdeUpgrade linux-image-generic-5.15Upgrade linux-image-azureUpgrade linux-image-7.0.0-1014-gcp-64kUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-genericUpgrade linux-image-generic-64k-7.0Upgrade linux-image-virtual-hwe-26.04Upgrade linux-image-gcp-fipsUpgrade linux-image-6.8.0-1071-azureUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-virtual-6.8Upgrade linux-image-gke-64kUpgrade linux-image-6.8.1-1062-realtimeUpgrade linux-image-6.8.0-1066-gke-64kUpgrade linux-image-nvidia-5.15Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-ibm-classicUpgrade linux-image-7.0.0-1013-oracleUpgrade linux-image-generic-lpae-5.15Upgrade linux-image-gke-64k-7.0Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-6.8.0-147-lowlatency-64kUpgrade linux-image-7.0.0-1008-gkeUpgrade linux-image-7.0.0-1015-oemUpgrade linux-image-azure-lts-22.04Upgrade linux-image-7.0.0-1017-azureUpgrade linux-image-oracle-7.0Upgrade linux-image-5.15.0-1109-intel-iot-realtimeUpgrade linux-image-6.8.0-1067-aws-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-7.0.0-1015-ibmUpgrade linux-image-oracle-5.15Upgrade linux-image-nvidia-tegraUpgrade linux-image-lowlatencyUpgrade linux-image-fips-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-nvidiaUpgrade linux-image-intel-iotgUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.15.0-1114-oracleUpgrade linux-image-5.15.0-1117-aws-fipsUpgrade linux-image-realtime-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-gkeopUpgrade linux-image-oem-20.04bUpgrade linux-image-6.8.0-1071-gcpUpgrade linux-image-aws-lts-22.04Upgrade linux-image-azure-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-7.0.0-1013-oracle-64kUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-oem-20.04cUpgrade linux-image-fipsUpgrade linux-image-azure-lts-26.04Upgrade linux-image-6.8.0-1064-oracle-64kUpgrade linux-image-ibmUpgrade linux-image-ibm-5.15Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1067-awsUpgrade linux-image-azure-fipsUpgrade linux-image-realtime-5.15Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.15.0-1117-aws-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-gcp-6.8Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-6.8.0-1066-gkeUpgrade linux-image-kvmUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-aws-fips-6.8Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-6.8.0-1069-azure-fdeUpgrade linux-image-generic-64k-6.8Upgrade linux-image-azure-cvmUpgrade linux-image-azure-7.0Upgrade linux-image-awsUpgrade linux-image-7.0.0-38-realtime-64kUpgrade linux-image-6.8.0-147-fipsUpgrade linux-image-6.8.0-1071-gcp-fipsUpgrade linux-image-5.15.0-1109-kvmUpgrade linux-image-7.0.0-38-generic-64kUpgrade linux-image-azure-fde-6.8Upgrade linux-image-6.8.0-1036-nvidia-tegraUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-oem-20.04Upgrade linux-image-realtimeUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-5.15.0-195-lowlatencyUpgrade linux-image-fips-6.8Upgrade linux-image-aws-fips-5.15Upgrade linux-image-aws-64k-5.15Upgrade linux-image-aws-5.15Upgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-oracle-64kUpgrade linux-image-oem-7.0Upgrade linux-image-oem-20.04dUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-azure-fips-6.8Upgrade linux-image-gcpUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-gkeUpgrade linux-image-6.8.0-1071-azure-fipsUpgrade linux-image-6.8.0-1067-aws-fipsUpgrade linux-image-6.8.0-1052-gkeopUpgrade linux-image-7.0.0-1014-aws-64kUpgrade linux-image-5.15.0-198-fipsUpgrade linux-image-generic-64k-5.15Upgrade linux-image-5.15.0-1112-nvidiaUpgrade linux-image-generic-7.0Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-azure-fde-5.15Upgrade linux-image-7.0.0-1014-awsUpgrade linux-image-oracleUpgrade linux-image-6.8.0-147-genericUpgrade linux-image-5.15.0-1080-xilinx-zynqmpUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-gke-7.0Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-gcp-5.15Upgrade linux-image-7.0.0-38-genericUpgrade linux-image-6.8.0-147-generic-64kUpgrade linux-image-lowlatency-5.15Upgrade linux-image-virtualUpgrade linux-image-5.15.0-1122-azure-fdeUpgrade linux-image-virtual-5.15Upgrade linux-image-realtime-64kUpgrade linux-image-oem-26.04aUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-7.0.0-1008-gke-64kUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-147-lowlatencyUpgrade linux-image-aws-lts-24.04Upgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-aws-64kUpgrade linux-image-5.15.0-1118-gcp-fipsUpgrade linux-image-6.8.0-1036-nvidia-tegra-rtUpgrade linux-image-5.15.0-1112-nvidia-lowlatencyUpgrade linux-image-gkeop-5.15Upgrade linux-image-laptop-23.10Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-gke-64k-6.8Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-azure-5.15Upgrade linux-image-aws-7.0Upgrade linux-image-aws-64k-6.8Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-realtime-6.8.1Upgrade linux-image-oracle-6.8Upgrade linux-image-7.0.0-1014-gcpUpgrade linux-image-5.15.0-198-generic-lpaeUpgrade linux-image-5.15.0-1118-gcp | Oct 6, 2026 | Oct 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 17, 2026 | Aug 10, 2026 |
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