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A use-after-free vulnerability in the Linux kernel's net/sched: cls_route component can be exploited to achieve local privilege escalation.
When route4_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.
We recommend upgrading past commit b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-zfcpdump-modulesUpgrade kernel-debug-modulesUpgrade kernel-toolsUpgrade kernel-coreUpgrade kernel-docUpgrade kernel-modules-extraUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-zfcpdumpUpgrade kernel-debug-modules-extraUpgrade kernel-zfcpdump-coreUpgrade kernel-modulesUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debug-coreUpgrade kernel-tools-libs-develUpgrade perfUpgrade bpftoolUpgrade kernel-cross-headersUpgrade kernel-zfcpdump-develUpgrade kernel-develUpgrade kernel-debugUpgrade kernel-headersUpgrade python3-perfUpgrade kernelUpgrade kernel-debug-devel | Nov 28, 2023 | Sep 6, 2023 |
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-5.10.186-179.751-debuginfoUpgrade kernel-livepatch-4.14.322-244.536Upgrade bpftoolUpgrade python-perf-debuginfoUpgrade kernel-livepatch-4.14.320-243.544-debuginfoUpgrade kernelUpgrade kernel-livepatch-5.10.192-182.736Upgrade kernel-livepatch-5.15.128-80.144Upgrade kernel-livepatch-4.14.320-243.544Upgrade python-perfUpgrade kernel-develUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade kernel-livepatch-5.10.186-179.751Upgrade perfUpgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade kernel-headersUpgrade perf-debuginfo | Oct 4, 2023 | Sep 6, 2023 |
| Amazon_linux | — | Upgrade kernel | Oct 4, 2023 | Sep 6, 2023 |
| Amazon_linux_2023 | — | Upgrade kernel-libbpf-develUpgrade kernel-tools-debuginfoUpgrade python3-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-6.1.49-69.116Upgrade kernel-libbpfUpgrade kernelUpgrade kernel-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade bpftoolUpgrade perfUpgrade python3-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-develUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64 | Feb 17, 2025 | Jul 29, 2023 |
| Centos_linux | — | Upgrade kpatch-patch-3_10_0-1160_90_1-debuginfoUpgrade kpatch-patch-3_10_0-1160_99_1-debuginfoUpgrade kernelUpgrade kpatch-patch-3_10_0-1160_92_1-debuginfoUpgrade kpatch-patch-3_10_0-1160_102_1-debuginfoUpgrade kpatch-patch-3_10_0-1160_92_1Upgrade kpatch-patch-3_10_0-1160_102_1Upgrade kernel-rtUpgrade kpatch-patch-3_10_0-1160_95_1-debuginfoUpgrade kpatch-patch-3_10_0-1160_90_1Upgrade kpatch-patch-3_10_0-1160_95_1Upgrade kpatch-patch-3_10_0-1160_99_1 | Nov 8, 2023 | Sep 6, 2023 |
| Debian | — | Upgrade linux | Sep 11, 2023 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelists | Jan 10, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernelUpgrade python-perfUpgrade perfUpgrade kernel-headersUpgrade kernel-devel | Feb 12, 2024 | Sep 6, 2023 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Oct 3, 2023 | Jul 29, 2023 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | Nov 8, 2023 | Sep 6, 2023 |
| Ubuntu | — | Upgrade linux-iotUpgrade linux-lts-xenialUpgrade linux-aws-5.15Upgrade linux-bluefieldUpgrade linux-hwe-5.15Upgrade linux-nvidia-tegraUpgrade linux-gkeop-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-lowlatency-hwe-6.2Upgrade linux-raspi-5.4Upgrade linux-ibm-5.4Upgrade linux-awsUpgrade linux-gcp-4.15Upgrade linux-gcp-5.4Upgrade linux-gcp-fipsUpgrade linux-oem-6.1Upgrade linux-azure-4.15Upgrade linuxUpgrade linux-hweUpgrade linux-hwe-6.2Upgrade linux-oracle-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-azure-5.4Upgrade linux-gkeopUpgrade linux-fipsUpgrade linux-gcp-6.2Upgrade linux-xilinx-zynqmpUpgrade linux-oracleUpgrade linux-raspiUpgrade linux-lowlatencyUpgrade linux-azureUpgrade linux-intel-iot-realtimeUpgrade linux-aws-hweUpgrade linux-starfiveUpgrade linux-gcp-5.15Upgrade linux-realtimeUpgrade linux-intel-iotg-5.15Upgrade linux-riscv-5.15Upgrade linux-azure-fde-6.2Upgrade linux-azure-5.15Upgrade linux-intel-iotgUpgrade linux-riscvUpgrade linux-nvidiaUpgrade linux-ibm-5.15Upgrade linux-azure-6.2Upgrade linux-nvidia-tegra-igxUpgrade linux-gkeUpgrade linux-aws-fipsUpgrade linux-oracle-5.15Upgrade linux-aws-5.4Upgrade linux-kvmUpgrade linux-aws-6.2Upgrade linux-azure-fipsUpgrade linux-ibmUpgrade linux-hwe-5.4Upgrade linux-gcpUpgrade linux-azure-fde | Nov 19, 2024 | Sep 6, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Sep 6, 2023 |
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