A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation.
If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free.
We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-develUpgrade kernel-zfcpdump-develUpgrade kernel-debugUpgrade kernel-debug-coreUpgrade kernel-coreUpgrade kernel-modulesUpgrade kernel-debug-modulesUpgrade kernel-cross-headersUpgrade kernel-zfcpdumpUpgrade perfUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debug-develUpgrade kernel-modules-extraUpgrade bpftoolUpgrade kernel-docUpgrade kernel-debug-modules-extraUpgrade kernel-zfcpdump-modulesUpgrade kernel-toolsUpgrade kernel-zfcpdump-coreUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libs-devel | Feb 23, 2024 | Sep 6, 2023 |
| Amazon Linux Ami 2 | — | Upgrade kernel-livepatch-4.14.322-246.539-debuginfoUpgrade kernel-livepatch-4.14.322-244.536Upgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-livepatch-4.14.320-243.544-debuginfoUpgrade kernel-livepatch-4.14.322-244.536-debuginfoUpgrade kernel-livepatch-5.10.186-179.751Upgrade kernel-debuginfoUpgrade kernel-livepatch-5.15.133-86.144Upgrade python-perf-debuginfoUpgrade kernel-livepatch-5.10.192-183.736Upgrade kernel-headersUpgrade kernel-livepatch-4.14.322-246.539Upgrade kernel-tools-develUpgrade kernel-livepatch-5.10.192-183.736-debuginfoUpgrade kernel-livepatch-5.10.196-185.743Upgrade kernel-livepatch-4.14.322-244.539Upgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-4.14.322-244.539-debuginfoUpgrade python-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-livepatch-4.14.326-245.539Upgrade kernel-livepatch-5.10.192-182.736-debuginfoUpgrade kernel-livepatch-5.10.186-179.751-debuginfoUpgrade kernel-livepatch-4.14.320-243.544Upgrade kernel-develUpgrade kernel-livepatch-5.10.192-182.736 | Oct 6, 2023 | Sep 6, 2023 |
| Amazon_linux | — | Upgrade kernel | Oct 7, 2023 | Sep 6, 2023 |
| Amazon_linux_2023 | — | Upgrade kernel-livepatch-6.1.49-70.116Upgrade kernelUpgrade kernel-tools-develUpgrade python3-perfUpgrade kernel-libbpf-develUpgrade kernel-libbpf-staticUpgrade python3-perf-debuginfoUpgrade kernel-livepatch-6.1.52-71.125Upgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade kernel-develUpgrade bpftool-debuginfoUpgrade kernel-livepatch-6.1.55-75.123Upgrade perfUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-libbpfUpgrade kernel-livepatch-6.1.49-69.116 | Feb 17, 2025 | Sep 6, 2023 |
| Centos_linux | — | Upgrade kpatch-patch-3_10_0-1160_105_1-debuginfoUpgrade kpatch-patch-3_10_0-1160_102_1-debuginfoUpgrade kernelUpgrade kpatch-patch-3_10_0-1160_108_1-debuginfoUpgrade kpatch-patch-3_10_0-1160_105_1Upgrade kernel-rtUpgrade kpatch-patch-3_10_0-1160_108_1Upgrade kpatch-patch-3_10_0-1160_102_1 | Jan 25, 2024 | Sep 6, 2023 |
| Debian | — | Upgrade linux | Oct 23, 2023 | Sep 6, 2023 |
| Dell Powerstore Dsa2024120 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Mar 26, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernelUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perf | Jan 10, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade bpftoolUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perf | Jan 10, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python-perfUpgrade perfUpgrade kernel-develUpgrade kernel-headersUpgrade kernel | Feb 12, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernel-headersUpgrade python3-perfUpgrade perfUpgrade kernel-develUpgrade kernel-tools-libsUpgrade kernelUpgrade bpftoolUpgrade python-perfUpgrade kernel-tools | Mar 13, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perf | Jan 10, 2024 | Sep 6, 2023 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Dec 12, 2023 | Sep 6, 2023 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | Jan 25, 2024 | Sep 6, 2023 |
| Suse | — | Upgrade kernel-azure-livepatch-develUpgrade kernel-debug-develUpgrade gfs2-kmp-64kbUpgrade kernel-default-extraUpgrade dtb-lgUpgrade dtb-marvellUpgrade kernel-docs-htmlUpgrade kernel-devel-azureUpgrade kernel-kvmsmall-vdsoUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-alteraUpgrade kernel-ec2Upgrade kernel-vanilla-develUpgrade dtb-hisiliconUpgrade kernel-rt-livepatchUpgrade kernel-azure-optionalUpgrade kernel-xen-baseUpgrade gfs2-kmp-rtUpgrade kernel-default-livepatchUpgrade kernel-obs-qaUpgrade kernel-preemptUpgrade kernel-debug-baseUpgrade dtb-freescaleUpgrade kernel-debugUpgrade kernel-rt_debug-develUpgrade dtb-broadcomUpgrade kselftests-kmp-64kbUpgrade kernel-traceUpgrade kernel-azure-baseUpgrade dtb-qcomUpgrade kernel-sourceUpgrade kernel-default-develUpgrade kselftests-kmp-azureUpgrade dtb-amlogicUpgrade dtb-caviumUpgrade cluster-md-kmp-defaultUpgrade kernel-azure-develUpgrade kernel-source-rtUpgrade kernel-syms-azureUpgrade kernel-xenUpgrade kernel-symsUpgrade kernel-source-azureUpgrade reiserfs-kmp-64kbUpgrade ocfs2-kmp-64kbUpgrade dtb-exynosUpgrade kernel-rt-optionalUpgrade cluster-md-kmp-rtUpgrade dlm-kmp-64kbUpgrade cluster-md-kmp-azureUpgrade kernel-rtUpgrade kernel-64kb-optionalUpgrade kernel-macrosUpgrade kernel-zfcpdumpUpgrade kernel-default-vdsoUpgrade kernel-vanilla-baseUpgrade dtb-apmUpgrade kernel-xen-develUpgrade dtb-appleUpgrade kernel-64kb-livepatch-develUpgrade kernel-kvmsmall-develUpgrade dtb-amazonUpgrade kernel-debug-livepatch-develUpgrade kernel-develUpgrade kernel-kvmsmallUpgrade ocfs2-kmp-rtUpgrade kernel-vanillaUpgrade kernel-64kbUpgrade kernel-default-optionalUpgrade kernel-azure-extraUpgrade gfs2-kmp-azureUpgrade kernel-64kb-develUpgrade kernel-docsUpgrade kernel-64kb-extraUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rt-extraUpgrade dtb-zteUpgrade dtb-rockchipUpgrade kernel-rt_debug-vdsoUpgrade dlm-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kselftests-kmp-rtUpgrade kernel-trace-baseUpgrade kernel-vanilla-livepatch-develUpgrade ocfs2-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade kernel-kvmsmall-baseUpgrade dtb-sprdUpgrade dtb-nvidiaUpgrade kernel-rt_debugUpgrade dtb-renesasUpgrade kernel-zfcpdump-manUpgrade ocfs2-kmp-azureUpgrade kernel-default-baseUpgrade dtb-xilinxUpgrade kernel-preempt-develUpgrade kernel-source-vanillaUpgrade reiserfs-kmp-defaultUpgrade dlm-kmp-rtUpgrade kernel-defaultUpgrade kernel-ec2-baseUpgrade kernel-ec2-develUpgrade kernel-azure-vdsoUpgrade dtb-alUpgrade kernel-obs-buildUpgrade dtb-armUpgrade kselftests-kmp-defaultUpgrade dtb-allwinnerUpgrade dlm-kmp-azureUpgrade reiserfs-kmp-azureUpgrade kernel-rt-develUpgrade kernel-devel-rtUpgrade kernel-azureUpgrade dtb-amdUpgrade kernel-default-livepatch-develUpgrade kernel-rt-livepatch-develUpgrade dtb-mediatekUpgrade cluster-md-kmp-64kbUpgrade dtb-socionextUpgrade kernel-rt-vdsoUpgrade kernel-trace-develUpgrade kernel-syms-rtUpgrade kernel-default-base-rebuildUpgrade kernel-debug-vdsoUpgrade kernel-default-man | Oct 11, 2023 | Sep 6, 2023 |
| Ubuntu | — | Upgrade linux-image-6.2.0-1015-azure-fdeUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-nvidia-64k-6.2Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-oracleUpgrade linux-image-5.15.0-1043-intel-iotgUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-5.4.0-1024-iotUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-5.4.0-1032-xilinx-zynqmpUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-5.4.0-165-genericUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-5.15.0-1039-nvidia-lowlatencyUpgrade linux-image-5.4.0-1096-raspiUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-serverUpgrade linux-image-5.15.0-1046-oracleUpgrade linux-image-virtualUpgrade linux-image-gkeop-5.15Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.2.0-35-generic-lpaeUpgrade linux-image-oem-20.04Upgrade linux-image-5.4.0-1116-gcpUpgrade linux-image-5.4.0-165-lowlatencyUpgrade linux-image-kvmUpgrade linux-image-5.4.0-1073-bluefieldUpgrade linux-image-gcpUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-gcp-lts-18.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-5.15.0-1041-ibmUpgrade linux-image-bluefieldUpgrade linux-image-4.15.0-219-lowlatencyUpgrade linux-image-awsUpgrade linux-image-oem-22.04bUpgrade linux-image-6.2.0-1017-gcpUpgrade linux-image-gkeUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-azure-cvmUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-4.15.0-1156-gcpUpgrade linux-image-3.13.0-194-genericUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-6.2.0-1011-nvidia-64kUpgrade linux-image-5.15.0-1045-gkeUpgrade linux-image-6.2.0-1014-awsUpgrade linux-image-6.2.0-1015-azureUpgrade linux-image-5.4.0-1101-kvmUpgrade linux-image-5.15.0-1045-kvmUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-4.15.0-1162-awsUpgrade linux-image-aws-lts-18.04Upgrade linux-image-5.4.0-1112-awsUpgrade linux-image-6.2.0-35-generic-64kUpgrade linux-image-generic-lts-trustyUpgrade linux-image-6.2.0-1007-starfiveUpgrade linux-image-raspi-nolpaeUpgrade linux-image-oem-20.04dUpgrade linux-image-4.15.0-219-genericUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-5.4.0-1059-ibmUpgrade linux-image-5.15.0-87-generic-64kUpgrade linux-image-4.4.0-1124-awsUpgrade linux-image-4.15.0-1146-kvmUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-5.15.0-87-lowlatency-64kUpgrade linux-image-5.15.0-1050-azure-fdeUpgrade linux-image-5.4.0-1111-oracleUpgrade linux-image-azureUpgrade linux-image-genericUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-6.2.0-35-genericUpgrade linux-image-6.2.0-1015-lowlatency-64kUpgrade linux-image-lowlatencyUpgrade linux-image-5.15.0-1050-azureUpgrade linux-image-5.4.0-1118-azureUpgrade linux-image-oemUpgrade linux-image-6.2.0-1015-kvmUpgrade linux-image-nvidia-6.2Upgrade linux-image-5.15.0-87-generic-lpaeUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-azure-lts-20.04Upgrade linux-image-azure-fdeUpgrade linux-image-gke-5.15Upgrade linux-image-5.15.0-1045-gcpUpgrade linux-image-gkeopUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-4.4.0-246-genericUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-5.15.0-87-genericUpgrade linux-image-gkeop-5.4Upgrade linux-image-nvidiaUpgrade linux-image-5.15.0-87-lowlatencyUpgrade linux-image-3.13.0-194-lowlatencyUpgrade linux-image-4.4.0-1162-awsUpgrade linux-image-generic-lpaeUpgrade linux-image-oem-22.04cUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-raspiUpgrade linux-image-4.4.0-1125-kvmUpgrade linux-image-azure-lts-18.04Upgrade linux-image-aws-lts-20.04Upgrade linux-image-lowlatency-64kUpgrade linux-image-5.4.0-165-generic-lpaeUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-raspi2Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-5.15.0-1048-awsUpgrade linux-image-generic-lpae-hwe-22.04Upgrade linux-image-4.15.0-1125-oracleUpgrade linux-image-oem-20.04cUpgrade linux-image-starfiveUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-generic-64kUpgrade linux-image-6.1.0-1023-oemUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-generic-lts-xenialUpgrade linux-image-intelUpgrade linux-image-oem-22.04aUpgrade linux-image-5.15.0-1039-nvidiaUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-ibmUpgrade linux-image-6.2.0-1011-nvidiaUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-6.2.0-1014-oracleUpgrade linux-image-azure-lts-22.04Upgrade linux-image-4.4.0-246-lowlatencyUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-aws-hweUpgrade linux-image-5.15.0-1041-raspiUpgrade linux-image-5.4.0-1079-gkeopUpgrade linux-image-6.2.0-1015-raspiUpgrade linux-image-5.15.0-1031-gkeopUpgrade linux-image-6.2.0-1015-lowlatencyUpgrade linux-image-4.15.0-1171-azureUpgrade linux-image-oem-osp1Upgrade linux-image-oem-20.04b | Oct 6, 2023 | 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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