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 kernel-tools-libsUpgrade kernel-debug-modulesUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-coreUpgrade kernel-develUpgrade kernelUpgrade kernel-zfcpdumpUpgrade kernel-debug-coreUpgrade kernel-debugUpgrade kernel-modules-extraUpgrade kernel-debug-develUpgrade python3-perfUpgrade kernel-modulesUpgrade bpftoolUpgrade kernel-zfcpdump-develUpgrade kernel-cross-headersUpgrade perfUpgrade kernel-tools-libs-develUpgrade kernel-zfcpdump-coreUpgrade kernel-docUpgrade kernel-toolsUpgrade kernel-zfcpdump-modulesUpgrade kernel-debug-modules-extraUpgrade kernel-abi-stablelists | Feb 23, 2024 | Sep 6, 2023 |
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-4.14.320-243.544Upgrade kernel-livepatch-5.10.192-182.736Upgrade kernel-livepatch-5.10.192-182.736-debuginfoUpgrade kernel-livepatch-4.14.326-245.539Upgrade kernel-develUpgrade kernel-livepatch-5.10.192-183.736-debuginfoUpgrade python-perfUpgrade kernel-livepatch-4.14.322-244.539-debuginfoUpgrade kernel-tools-develUpgrade perfUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.10.186-179.751-debuginfoUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-livepatch-4.14.322-244.539Upgrade perf-debuginfoUpgrade kernel-livepatch-5.10.196-185.743Upgrade kernel-headersUpgrade kernel-livepatch-5.10.192-183.736Upgrade kernel-livepatch-4.14.322-246.539-debuginfoUpgrade kernel-tools-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-livepatch-4.14.320-243.544-debuginfoUpgrade kernel-livepatch-5.15.133-86.144Upgrade kernelUpgrade kernel-livepatch-5.10.186-179.751Upgrade kernel-livepatch-4.14.322-244.536Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-livepatch-4.14.322-246.539Upgrade kernel-livepatch-4.14.322-244.536-debuginfo | Oct 6, 2023 | Sep 6, 2023 |
| Amazon_linux | — | Upgrade kernel | Oct 7, 2023 | Sep 6, 2023 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade kernelUpgrade kernel-toolsUpgrade python3-perf-debuginfoUpgrade kernel-libbpf-staticUpgrade python3-perfUpgrade kernel-livepatch-6.1.49-70.116Upgrade bpftoolUpgrade kernel-tools-develUpgrade kernel-livepatch-6.1.52-71.125Upgrade kernel-libbpf-develUpgrade kernel-debuginfo-common-x86_64 | Feb 17, 2025 | Sep 6, 2023 |
| Centos_linux | — | Upgrade kpatch-patch-3_10_0-1160_102_1Upgrade kernel-rtUpgrade kpatch-patch-3_10_0-1160_108_1Upgrade kpatch-patch-3_10_0-1160_105_1Upgrade kernelUpgrade kpatch-patch-3_10_0-1160_102_1-debuginfoUpgrade kpatch-patch-3_10_0-1160_105_1-debuginfoUpgrade kpatch-patch-3_10_0-1160_108_1-debuginfo | 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 python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Jan 10, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernelUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perf | Jan 10, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp5 | — | Upgrade kernelUpgrade kernel-headersUpgrade python-perfUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel-develUpgrade perf | Feb 12, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernel-develUpgrade perfUpgrade kernel-headersUpgrade kernelUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python-perfUpgrade bpftool | Mar 13, 2024 | Sep 6, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernelUpgrade python3-perf | Jan 10, 2024 | Sep 6, 2023 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Dec 12, 2023 | Sep 6, 2023 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rtNo solution exists | Jan 25, 2024 | Sep 6, 2023 |
| Suse | — | Upgrade kernel-xenUpgrade kselftests-kmp-azureUpgrade kernel-develUpgrade dtb-amlogicUpgrade kernel-azure-develUpgrade kernel-sourceUpgrade kernel-source-rtUpgrade kernel-vanillaUpgrade kernel-azure-extraUpgrade kernel-kvmsmallUpgrade kernel-xen-baseUpgrade kernel-traceUpgrade reiserfs-kmp-64kbUpgrade kernel-rt-optionalUpgrade dtb-appleUpgrade kernel-symsUpgrade kernel-syms-azureUpgrade gfs2-kmp-azureUpgrade dtb-exynosUpgrade kernel-64kb-livepatch-develUpgrade dtb-apmUpgrade kernel-source-azureUpgrade dtb-broadcomUpgrade kernel-rtUpgrade cluster-md-kmp-defaultUpgrade kselftests-kmp-64kbUpgrade kernel-obs-qaUpgrade kernel-default-vdsoUpgrade dtb-qcomUpgrade ocfs2-kmp-64kbUpgrade kernel-default-optionalUpgrade ocfs2-kmp-rtUpgrade gfs2-kmp-rtUpgrade kernel-zfcpdumpUpgrade kernel-ec2Upgrade kernel-64kb-develUpgrade kernel-debugUpgrade kernel-macrosUpgrade kernel-preemptUpgrade kernel-64kb-optionalUpgrade cluster-md-kmp-rtUpgrade kernel-vanilla-baseUpgrade kernel-vanilla-develUpgrade dtb-amazonUpgrade dlm-kmp-64kbUpgrade kernel-xen-develUpgrade kernel-default-livepatchUpgrade dtb-hisiliconUpgrade kernel-kvmsmall-develUpgrade kernel-azure-optionalUpgrade kernel-rt-livepatchUpgrade cluster-md-kmp-azureUpgrade kernel-debug-baseUpgrade dtb-caviumUpgrade kernel-azure-baseUpgrade kernel-azure-livepatch-develUpgrade kernel-debug-livepatch-develUpgrade kernel-docs-htmlUpgrade dtb-lgUpgrade dtb-marvellUpgrade kernel-default-extraUpgrade kernel-devel-azureUpgrade kernel-debug-develUpgrade kernel-kvmsmall-livepatch-develUpgrade dtb-freescaleUpgrade kernel-rt_debug-develUpgrade gfs2-kmp-64kbUpgrade kernel-kvmsmall-vdsoUpgrade dtb-alteraUpgrade kernel-default-develUpgrade kernel-64kbUpgrade dtb-zteUpgrade kernel-64kb-extraUpgrade kernel-syms-rtUpgrade kernel-ec2-develUpgrade kernel-debug-vdsoUpgrade dlm-kmp-rtUpgrade dlm-kmp-defaultUpgrade dtb-xilinxUpgrade kernel-trace-baseUpgrade kernel-rt-vdsoUpgrade kernel-trace-develUpgrade kernel-default-baseUpgrade kernel-default-manUpgrade kernel-docsUpgrade dtb-alUpgrade ocfs2-kmp-defaultUpgrade kernel-rt_debugUpgrade kernel-kvmsmall-baseUpgrade dtb-renesasUpgrade reiserfs-kmp-rtUpgrade kernel-ec2-baseUpgrade kernel-default-livepatch-develUpgrade dtb-armUpgrade kernel-obs-buildUpgrade kselftests-kmp-rtUpgrade kernel-vanilla-livepatch-develUpgrade kernel-rt-extraUpgrade gfs2-kmp-defaultUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-source-vanillaUpgrade kernel-preempt-develUpgrade dtb-mediatekUpgrade kernel-rt-livepatch-develUpgrade dtb-socionextUpgrade cluster-md-kmp-64kbUpgrade reiserfs-kmp-defaultUpgrade dlm-kmp-azureUpgrade reiserfs-kmp-azureUpgrade kernel-devel-rtUpgrade kselftests-kmp-defaultUpgrade kernel-rt-develUpgrade kernel-azureUpgrade kernel-defaultUpgrade dtb-amdUpgrade dtb-allwinnerUpgrade dtb-nvidiaUpgrade kernel-zfcpdump-manUpgrade ocfs2-kmp-azureUpgrade dtb-sprdUpgrade kernel-default-base-rebuildUpgrade dtb-rockchipUpgrade kernel-azure-vdsoUpgrade kernel-rt_debug-vdso | Oct 11, 2023 | Sep 6, 2023 |
| Ubuntu | — | Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-gkeUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-aws-lts-18.04Upgrade linux-image-virtual-hwe-18.04Upgrade linux-image-6.2.0-1015-azure-fdeUpgrade linux-image-4.4.0-1124-awsUpgrade linux-image-5.4.0-1101-kvmUpgrade linux-image-oem-22.04bUpgrade linux-image-6.2.0-1011-nvidia-64kUpgrade linux-image-awsUpgrade linux-image-6.2.0-1015-azureUpgrade linux-image-5.4.0-165-lowlatencyUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.15.0-1043-intel-iotgUpgrade linux-image-5.15.0-1045-kvmUpgrade linux-image-4.15.0-1162-awsUpgrade linux-image-serverUpgrade linux-image-5.4.0-1024-iotUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.15.0-1041-ibmUpgrade linux-image-5.4.0-1116-gcpUpgrade linux-image-oracleUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-5.15.0-87-generic-64kUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-5.15.0-1045-gkeUpgrade linux-image-5.4.0-1032-xilinx-zynqmpUpgrade linux-image-gcpUpgrade linux-image-5.15.0-1039-nvidia-lowlatencyUpgrade linux-image-oem-20.04Upgrade linux-image-6.2.0-1017-gcpUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-5.4.0-165-genericUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-kvmUpgrade linux-image-oem-20.04dUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-4.15.0-219-genericUpgrade linux-image-5.4.0-1073-bluefieldUpgrade linux-image-4.15.0-1156-gcpUpgrade linux-image-6.2.0-1014-awsUpgrade linux-image-3.13.0-194-genericUpgrade linux-image-raspi-nolpaeUpgrade linux-image-6.2.0-35-generic-64kUpgrade linux-image-5.4.0-1059-ibmUpgrade linux-image-5.15.0-1046-oracleUpgrade linux-image-gkeop-5.15Upgrade linux-image-azure-cvmUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-virtualUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-5.4.0-1096-raspiUpgrade linux-image-gcp-lts-18.04Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-nvidia-64k-6.2Upgrade linux-image-4.15.0-219-lowlatencyUpgrade linux-image-6.2.0-35-generic-lpaeUpgrade linux-image-5.4.0-1112-awsUpgrade linux-image-generic-lts-trustyUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-bluefieldUpgrade linux-image-6.2.0-1007-starfiveUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-6.2.0-1015-lowlatencyUpgrade linux-image-5.15.0-87-lowlatency-64kUpgrade linux-image-gke-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-5.15.0-87-generic-lpaeUpgrade linux-image-5.4.0-1079-gkeopUpgrade linux-image-4.4.0-246-genericUpgrade linux-image-aws-hweUpgrade linux-image-4.15.0-1146-kvmUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.2.0-1015-lowlatency-64kUpgrade linux-image-nvidia-6.2Upgrade linux-image-oracle-lts-20.04Upgrade linux-image-raspiUpgrade linux-image-aws-lts-20.04Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-5.4.0-1111-oracleUpgrade linux-image-5.15.0-87-lowlatencyUpgrade linux-image-6.2.0-1015-kvmUpgrade linux-image-3.13.0-194-lowlatencyUpgrade linux-image-5.15.0-87-genericUpgrade linux-image-nvidiaUpgrade linux-image-gkeop-5.4Upgrade linux-image-genericUpgrade linux-image-4.4.0-1162-awsUpgrade linux-image-4.4.0-1125-kvmUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oem-22.04cUpgrade linux-image-generic-lpaeUpgrade linux-image-6.2.0-1015-raspiUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-starfiveUpgrade linux-image-4.15.0-1125-oracleUpgrade linux-image-raspi2Upgrade linux-image-oem-22.04aUpgrade linux-image-generic-64kUpgrade linux-image-lowlatencyUpgrade linux-image-intelUpgrade linux-image-generic-lpae-hwe-22.04Upgrade linux-image-5.15.0-1048-awsUpgrade linux-image-oem-20.04cUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.15.0-1050-azureUpgrade linux-image-azure-lts-18.04Upgrade linux-image-azure-lts-20.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-gkeopUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-azure-fdeUpgrade linux-image-5.15.0-1045-gcpUpgrade linux-image-5.15.0-1041-raspiUpgrade linux-image-5.4.0-1118-azureUpgrade linux-image-4.4.0-246-lowlatencyUpgrade linux-image-azure-lts-22.04Upgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-generic-lts-xenialUpgrade linux-image-5.15.0-1039-nvidiaUpgrade linux-image-6.2.0-35-genericUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.1.0-1023-oemUpgrade linux-image-azureUpgrade linux-image-intel-iotgUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.4.0-165-generic-lpaeUpgrade linux-image-ibmUpgrade linux-image-aws-lts-22.04Upgrade linux-image-6.2.0-1011-nvidiaUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-5.15.0-1050-azure-fdeUpgrade linux-image-6.2.0-1014-oracleUpgrade linux-image-5.15.0-1031-gkeopUpgrade linux-image-4.15.0-1171-azureUpgrade linux-image-oemUpgrade linux-image-oem-osp1Upgrade linux-image-ibm-lts-20.04Upgrade 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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