A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root.
We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ .
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-tools-libsUpgrade kernel-debug-modulesUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-develUpgrade kernel-rt-develUpgrade kernel-debug-modules-extraUpgrade kernel-docUpgrade kernel-rt-debugUpgrade kernel-zfcpdumpUpgrade kernel-rt-coreUpgrade kernel-rt-debug-modules-extraUpgrade kernel-rt-debug-kvmUpgrade kernel-debugUpgrade kernel-zfcpdump-develUpgrade kernel-debug-coreUpgrade kernel-rt-debug-develUpgrade kernel-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-modules-extraUpgrade kernel-rt-modulesUpgrade kernel-modulesUpgrade kernel-debug-develUpgrade kernel-tools-libs-develUpgrade python3-perfUpgrade kernel-cross-headersUpgrade kernel-zfcpdump-modulesUpgrade perfUpgrade kernel-rt-modules-extraUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernelUpgrade kernel-zfcpdump-coreUpgrade kernel-rt-kvmUpgrade kernel-rt-debug-coreUpgrade bpftoolUpgrade kernel-rt | Aug 14, 2023 | Apr 12, 2023 |
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-livepatch-5.15.102-61.139Upgrade kernel-headersUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade perfUpgrade kernel-develUpgrade kernel-tools-develUpgrade kernel-livepatch-5.10.173-154.642Upgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade python-perfUpgrade kernel-livepatch-4.14.309-231.529Upgrade kernel | May 2, 2023 | Apr 12, 2023 |
| Amazon_linux | — | Upgrade kernel | May 2, 2023 | Mar 20, 2023 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade kernelUpgrade kernel-headersUpgrade perfUpgrade python3-perfUpgrade kernel-libbpf-staticUpgrade kernel-develUpgrade perf-debuginfoUpgrade kernel-libbpf-develUpgrade kernel-debuginfoUpgrade bpftoolUpgrade kernel-livepatch-6.1.19-30.43Upgrade kernel-toolsUpgrade python3-perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpfUpgrade bpftool-debuginfo | Feb 17, 2025 | Apr 20, 2023 |
| Centos_linux | — | Upgrade kernelUpgrade kpatch-patch-4_18_0-477_15_1Upgrade kernel-rtUpgrade kpatch-patch-4_18_0-477_15_1-debugsourceUpgrade kpatch-patch-4_18_0-477_15_1-debuginfoUpgrade kpatch-patch-4_18_0-477_10_1Upgrade kpatch-patch-4_18_0-477_13_1Upgrade kpatch-patch-4_18_0-477_10_1-debuginfoUpgrade kpatch-patch-4_18_0-477_10_1-debugsourceUpgrade kpatch-patch-4_18_0-477_13_1-debuginfoUpgrade kpatch-patch-4_18_0-477_13_1-debugsource | Aug 9, 2023 | Apr 12, 2023 |
| Debian | — | Upgrade linux | May 1, 2023 | Apr 12, 2023 |
| Dell Powerstore Dsa2024120 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Mar 26, 2024 |
| Dell Powerstore Dsa2024158 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Apr 4, 2024 |
| Dell Powerstore Dsa2024398 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Sep 17, 2024 |
| Dell Powerstore Dsa2024408 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Sep 26, 2024 |
| Dell Powerstore Dsa2024432 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Oct 29, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernelUpgrade kernel-toolsUpgrade kernel-tools-libs | Mar 13, 2024 | Apr 12, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade python3-perf | Jan 29, 2024 | Apr 12, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernelUpgrade kernel-headersUpgrade kernel-toolsUpgrade python-perfUpgrade python3-perfUpgrade kernel-tools-libsUpgrade perfUpgrade kernel-develUpgrade bpftool | Mar 13, 2024 | Apr 12, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-tools-libsUpgrade kernelUpgrade python3-perfUpgrade kernel-tools | Feb 12, 2024 | Apr 12, 2023 |
| Oracle_linux | — | Upgrade kernel | Aug 10, 2023 | Apr 20, 2023 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernelNo solution exists | Aug 9, 2023 | Apr 12, 2023 |
| Rocky_linux | — | Upgrade kernel-rt-debug-modulesUpgrade kernel-modulesUpgrade python3-perfUpgrade kernel-modules-extraUpgrade kernel-debug-debuginfoUpgrade kernelUpgrade kernel-rt-debug-debuginfoUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-debugUpgrade kernel-rt-modules-extraUpgrade kernel-rt-debug-coreUpgrade bpftoolUpgrade kernel-tools-debuginfoUpgrade kernel-debug-modulesUpgrade kernel-debug-develUpgrade kernel-rt-kvmUpgrade python3-perf-debuginfoUpgrade kernel-cross-headersUpgrade kernel-tools-libsUpgrade kernel-debug-coreUpgrade kernel-coreUpgrade kernel-rt-coreUpgrade kernel-rt-debugUpgrade kernel-develUpgrade kernel-rt-develUpgrade kernel-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade perf-debuginfoUpgrade kernel-rt-debug-kvmUpgrade perfUpgrade kernel-rt-debuginfoUpgrade kernel-toolsUpgrade kernel-rt-debug-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-rt-modulesUpgrade kernel-tools-libs-develUpgrade kernel-debug-modules-extraUpgrade kernel-rtUpgrade kernel-headers | Mar 5, 2024 | Apr 12, 2023 |
| Suse | — | Upgrade dtb-hisiliconUpgrade kernel-defaultUpgrade cluster-md-kmp-64kbUpgrade kernel-rt_debugUpgrade reiserfs-kmp-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-vdsoUpgrade kernel-macrosUpgrade kernel-syms-rtUpgrade dtb-apmUpgrade kernel-kvmsmall-vdsoUpgrade reiserfs-kmp-64kbUpgrade dtb-renesasUpgrade dtb-broadcomUpgrade reiserfs-kmp-defaultUpgrade kernel-azure-vdsoUpgrade dtb-sprdUpgrade dtb-nvidiaUpgrade cluster-md-kmp-defaultUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-default-extraUpgrade kernel-default-manUpgrade dlm-kmp-azureUpgrade kernel-source-rtUpgrade kselftests-kmp-defaultUpgrade kernel-docs-htmlUpgrade kernel-default-livepatch-develUpgrade kernel-azure-baseUpgrade ocfs2-kmp-rtUpgrade dlm-kmp-rtUpgrade dtb-amdUpgrade kernel-64kb-optionalUpgrade dtb-marvellUpgrade kernel-64kb-extraUpgrade kernel-debugUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-socionextUpgrade dtb-appleUpgrade kernel-debug-livepatch-develUpgrade kernel-rt_debug-vdsoUpgrade kernel-rt-optionalUpgrade kernel-debug-develUpgrade dlm-kmp-defaultUpgrade kernel-obs-qaUpgrade kernel-docsUpgrade kernel-azure-extraUpgrade kernel-default-baseUpgrade dtb-amlogicUpgrade kselftests-kmp-rtUpgrade ocfs2-kmp-64kbUpgrade dtb-alteraUpgrade kernel-sourceUpgrade gfs2-kmp-rtUpgrade dtb-freescaleUpgrade dtb-exynosUpgrade kernel-rt-livepatchUpgrade kernel-rt-extraUpgrade kernel-default-livepatchUpgrade dtb-caviumUpgrade ocfs2-kmp-defaultUpgrade kernel-64kb-develUpgrade dtb-armUpgrade kernel-devel-rtUpgrade dtb-amazonUpgrade kernel-kvmsmall-develUpgrade suse-module-toolsUpgrade kernel-symsUpgrade kernel-source-vanillaUpgrade kernel-rtUpgrade kernel-devel-azureUpgrade kernel-azure-livepatch-develUpgrade kernel-64kb-livepatch-develUpgrade dtb-xilinxUpgrade dtb-rockchipUpgrade dtb-lgUpgrade dlm-kmp-64kbUpgrade kernel-syms-azureUpgrade kselftests-kmp-azureUpgrade kernel-preempt-develUpgrade kernel-default-vdsoUpgrade kernel-azureUpgrade kernel-azure-optionalUpgrade kernel-rt-develUpgrade kernel-source-azureUpgrade kernel-default-base-rebuildUpgrade kernel-azure-develUpgrade dtb-mediatekUpgrade suse-module-tools-legacyUpgrade gfs2-kmp-defaultUpgrade kernel-zfcpdumpUpgrade ocfs2-kmp-azureUpgrade kernel-rt_debug-develUpgrade dtb-qcomUpgrade dtb-allwinnerUpgrade cluster-md-kmp-azureUpgrade kselftests-kmp-64kbUpgrade kernel-default-develUpgrade gfs2-kmp-azureUpgrade kernel-develUpgrade kernel-debug-vdsoUpgrade reiserfs-kmp-azureUpgrade cluster-md-kmp-rtUpgrade kernel-default-optionalUpgrade kernel-kvmsmallUpgrade kernel-preemptUpgrade kernel-obs-buildUpgrade kernel-64kbUpgrade gfs2-kmp-64kb | Jul 11, 2023 | Apr 12, 2023 |
| Ubuntu | — | Upgrade linux-image-gcpUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.19.0-41-generic-64kUpgrade linux-image-generic-lpae-hwe-22.04Upgrade linux-image-gcp-lts-20.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.19.0-41-generic-lpaeUpgrade linux-image-5.15.0-71-generic-64kUpgrade linux-image-4.4.0-240-lowlatencyUpgrade linux-image-lowlatency-64kUpgrade linux-image-oem-20.04Upgrade linux-image-virtualUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-azure-lts-20.04Upgrade linux-image-virtual-lts-xenialUpgrade linux-image-genericUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-5.15.0-1035-awsUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-virtual-hwe-18.04Upgrade linux-image-4.4.0-1119-kvmUpgrade linux-image-5.19.0-1022-kvmUpgrade linux-image-gkeop-5.4Upgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-aws-lts-18.04Upgrade linux-image-azure-lts-22.04Upgrade linux-image-5.4.0-1024-xilinx-zynqmpUpgrade linux-image-generic-64kUpgrade linux-image-4.15.0-210-generic-lpaeUpgrade linux-image-4.15.0-1164-azureUpgrade linux-image-oemUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-6.0.0-1015-oemUpgrade linux-image-4.4.0-1118-awsUpgrade linux-image-gkeop-5.15Upgrade linux-image-5.4.0-1068-gkeopUpgrade linux-image-5.19.0-1023-lowlatency-64kUpgrade linux-image-5.15.0-71-lowlatency-64kUpgrade linux-image-5.17.0-1031-oemUpgrade linux-image-5.19.0-41-genericUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-raspi2Upgrade linux-image-5.15.0-1037-azure-fdeUpgrade linux-image-oem-osp1Upgrade linux-image-5.4.0-1048-ibmUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-oem-20.04cUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-snapdragonUpgrade linux-image-4.4.0-240-genericUpgrade linux-image-4.15.0-1131-raspi2Upgrade linux-image-gke-5.4Upgrade linux-image-oem-20.04dUpgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-1019-gkeopUpgrade linux-image-bluefieldUpgrade linux-image-azure-lts-18.04Upgrade linux-image-gkeopUpgrade linux-image-5.4.0-148-genericUpgrade linux-image-5.19.0-1025-azureUpgrade linux-image-4.15.0-1149-snapdragonUpgrade linux-image-5.15.0-1032-kvmUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-oem-22.04Upgrade linux-image-gcp-lts-18.04Upgrade linux-image-intelUpgrade linux-image-generic-lpae-hwe-18.04-edgeUpgrade linux-image-5.15.0-1032-gkeUpgrade linux-image-5.15.0-1028-raspiUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-oracleUpgrade linux-image-5.15.0-71-genericUpgrade linux-image-5.4.0-1062-bluefieldUpgrade linux-image-oem-20.04bUpgrade linux-image-4.4.0-1156-awsUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-5.4.0-148-generic-lpaeUpgrade linux-image-oem-22.04cUpgrade linux-image-gkeUpgrade linux-image-5.4.0-1098-gkeUpgrade linux-image-azure-cvmUpgrade linux-image-5.19.0-1023-lowlatencyUpgrade linux-image-5.4.0-148-lowlatencyUpgrade linux-image-5.19.0-1024-awsUpgrade linux-image-generic-lts-xenialUpgrade linux-image-5.15.0-1029-ibmUpgrade linux-image-azureUpgrade linux-image-oem-22.04aUpgrade linux-image-4.15.0-1149-gcpUpgrade linux-image-aws-lts-20.04Upgrade linux-image-4.15.0-210-genericUpgrade linux-image-ibmUpgrade linux-image-oem-22.04bUpgrade linux-image-gke-5.15Upgrade linux-image-5.4.0-1100-oracleUpgrade linux-image-5.15.0-1034-oracleUpgrade linux-image-5.19.0-1022-gcpUpgrade linux-image-5.4.0-1017-iotUpgrade linux-image-5.19.0-1021-ibmUpgrade linux-image-lowlatencyUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.15.0-1030-intel-iotgUpgrade linux-image-5.15.0-71-lowlatencyUpgrade linux-image-5.19.0-1022-oracleUpgrade linux-image-5.4.0-1104-gcpUpgrade linux-image-4.15.0-1118-oracleUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-generic-hwe-18.04Upgrade linux-image-5.15.0-1028-raspi-nolpaeUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-5.4.0-1090-kvmUpgrade linux-image-generic-hwe-18.04-edgeUpgrade linux-image-5.15.0-1033-gcpUpgrade linux-image-generic-lpaeUpgrade linux-image-raspiUpgrade linux-image-5.19.0-1017-raspi-nolpaeUpgrade linux-image-aws-lts-22.04Upgrade linux-image-kvmUpgrade linux-image-azure-fdeUpgrade linux-image-awsUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-4.15.0-1155-awsUpgrade linux-image-6.1.0-1009-oemUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-aws-hweUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-5.4.0-1101-awsUpgrade linux-image-4.15.0-210-lowlatencyUpgrade linux-image-5.4.0-1084-raspiUpgrade linux-image-5.15.0-1037-azureUpgrade linux-image-4.15.0-1139-kvmUpgrade linux-image-5.4.0-1107-azureUpgrade linux-image-5.15.0-71-generic-lpaeUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.19.0-1017-raspi | Apr 21, 2023 | Apr 12, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 12, 2023 |
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