A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-tools-libs-devel | May 4, 2022 | Aug 5, 2021 |
| Amazon Linux Ami 2 | — | Upgrade kernel-tools-develUpgrade python-perfUpgrade kernel-livepatch-5.10.59-52.142Upgrade kernel-headersUpgrade kernel-toolsUpgrade perfUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernelUpgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfo | Jul 4, 2022 | Aug 5, 2021 |
| Amazon_linux | — | Upgrade kernel | Oct 5, 2021 | Aug 5, 2021 |
| Centos_linux | — | Upgrade kernel-rtUpgrade kernel | Nov 10, 2021 | Aug 5, 2021 |
| Debian | — | Upgrade linux | Nov 29, 2021 | Aug 5, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade python-perfUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-libsUpgrade kernel-headersUpgrade kernel-toolsUpgrade kernel-develUpgrade perfUpgrade kernel-debuginfo | May 25, 2022 | Aug 5, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade python-perfUpgrade kernelUpgrade kernel-headersUpgrade kernel-toolsUpgrade kernel-develUpgrade kernel-tools-libsUpgrade perf | Jan 4, 2022 | Aug 5, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade python3-perfUpgrade kernel-develUpgrade perfUpgrade kernelUpgrade kernel-headersUpgrade kernel-tools-libsUpgrade kernel-sourceUpgrade python-perfUpgrade kernel-toolsUpgrade bpftool | Nov 2, 2021 | Aug 5, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade python3-perfUpgrade kernel-tools-libsUpgrade kernelUpgrade kernel-tools | Nov 12, 2021 | Aug 5, 2021 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Sep 23, 2021 | Jul 20, 2021 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernel | Nov 10, 2021 | Aug 5, 2021 |
| Suse | — | Upgrade kernel-kvmsmall-baseUpgrade gfs2-kmp-preemptUpgrade kernel-64kbUpgrade ocfs2-kmp-64kbUpgrade dtb-caviumUpgrade kernel-azure-livepatch-develUpgrade kernel-xenUpgrade kernel-kvmsmallUpgrade kernel-preempt-optionalUpgrade kernel-zfcpdumpUpgrade kernel-bigmem-develUpgrade kernel-traceUpgrade gfs2-kmp-64kbUpgrade dtb-broadcomUpgrade cluster-md-kmp-azureUpgrade dlm-kmp-defaultUpgrade kernel-obs-buildUpgrade kernel-trace-baseUpgrade dtb-hisiliconUpgrade kernel-64kb-extraUpgrade kernel-debug-livepatch-develUpgrade kernel-default-livepatch-develUpgrade kernel-default-manUpgrade dtb-amdUpgrade kernel-debug-develUpgrade kernel-default-kgraftUpgrade kernel-default-livepatchUpgrade kernel-paeUpgrade dtb-lgUpgrade kernel-vanilla-develUpgrade kernel-source-azureUpgrade kselftests-kmp-64kbUpgrade kernel-64kb-livepatch-develUpgrade gfs2-kmp-azureUpgrade reiserfs-kmp-64kbUpgrade kernel-azure-develUpgrade kernel-azureUpgrade dlm-kmp-preemptUpgrade kernel-default-develUpgrade kernel-azure-extraUpgrade dlm-kmp-64kbUpgrade dtb-alteraUpgrade kernel-preempt-livepatch-develUpgrade kernel-bigmemUpgrade dtb-amlogicUpgrade kernel-vanilla-livepatch-develUpgrade dtb-freescaleUpgrade dtb-socionextUpgrade gfs2-kmp-defaultUpgrade kernel-kvmsmall-develUpgrade kselftests-kmp-azureUpgrade kernel-azure-optionalUpgrade kernel-source-vanillaUpgrade kernel-ec2Upgrade kernel-docs-htmlUpgrade kernel-64kb-optionalUpgrade dtb-marvellUpgrade ocfs2-kmp-preemptUpgrade reiserfs-kmp-preemptUpgrade kernel-default-baseUpgrade kernel-macrosUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-pae-develUpgrade kernel-trace-develUpgrade dtb-renesasUpgrade reiserfs-kmp-defaultUpgrade kernel-azure-baseUpgrade kernel-bigmem-baseUpgrade kernel-preemptUpgrade dtb-armUpgrade dtb-nvidiaUpgrade kgraft-patch-4_4_180-94_150-defaultUpgrade kernel-vanillaUpgrade dtb-rockchipUpgrade kernel-ec2-develUpgrade kernel-xen-baseUpgrade kernel-develUpgrade kernel-preempt-extraUpgrade kernel-xen-develUpgrade dtb-mediatekUpgrade dtb-xilinxUpgrade kernel-obs-qaUpgrade cluster-md-kmp-defaultUpgrade dtb-zteUpgrade kernel-zfcpdump-manUpgrade kselftests-kmp-preemptUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-defaultUpgrade dtb-sprdUpgrade dtb-alUpgrade dtb-exynosUpgrade kernel-preempt-develUpgrade kernel-ppc64Upgrade dtb-apmUpgrade dlm-kmp-azureUpgrade kernel-devel-azureUpgrade kernel-pae-baseUpgrade dtb-qcomUpgrade kernel-syms-azureUpgrade kernel-vanilla-baseUpgrade kernel-debugUpgrade kernel-symsUpgrade reiserfs-kmp-azureUpgrade kernel-ec2-baseUpgrade kernel-default-extraUpgrade kernel-ppc64-develUpgrade kernel-default-optionalUpgrade kernel-defaultUpgrade kernel-default-base-rebuildUpgrade dtb-allwinnerUpgrade cluster-md-kmp-preemptUpgrade ocfs2-kmp-defaultUpgrade kernel-64kb-develUpgrade kernel-ppc64-baseUpgrade kernel-sourceUpgrade kernel-docsUpgrade ocfs2-kmp-azureUpgrade kernel-debug-base | Aug 11, 2021 | Aug 5, 2021 |
| Ubuntu | — | Upgrade linux-image-oem-20.04cUpgrade linux-image-4.4.0-1103-kvmUpgrade linux-image-5.13.0-1014-oemUpgrade linux-image-4.4.0-222-lowlatencyUpgrade linux-image-5.11.0-37-generic-lpaeUpgrade linux-image-5.4.0-1044-raspiUpgrade linux-image-5.4.0-1053-gcpUpgrade linux-image-gke-5.4Upgrade linux-image-oracle-lts-18.04Upgrade linux-image-awsUpgrade linux-image-5.4.0-87-genericUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-aws-lts-20.04Upgrade linux-image-5.11.0-37-generic-64kUpgrade linux-image-raspi2Upgrade linux-image-kvmUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.4.0-87-generic-lpaeUpgrade linux-image-oem-osp1Upgrade linux-image-4.15.0-1109-gcpUpgrade linux-image-5.4.0-87-lowlatencyUpgrade linux-image-5.11.0-1019-awsUpgrade linux-image-azureUpgrade linux-image-5.11.0-1020-gcpUpgrade linux-image-5.4.0-88-genericUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-4.15.0-159-generic-lpaeUpgrade linux-image-gcp-lts-18.04Upgrade linux-image-virtualUpgrade linux-image-5.11.0-37-lowlatencyUpgrade linux-image-4.15.0-159-lowlatencyUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-gcpUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-4.4.0-1102-awsUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-azure-lts-18.04Upgrade linux-image-raspiUpgrade linux-image-4.4.0-219-genericUpgrade linux-image-azure-edgeUpgrade linux-image-dell300xUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-oemUpgrade linux-image-4.4.0-1099-awsUpgrade linux-image-4.15.0-1096-raspi2Upgrade linux-image-5.4.0-1024-gkeopUpgrade linux-image-azure-lts-20.04Upgrade linux-image-4.4.0-219-lowlatencyUpgrade linux-image-4.4.0-1135-awsUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-5.11.0-1019-raspiUpgrade linux-image-5.11.0-1019-raspi-nolpaeUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-oem-20.04bUpgrade linux-image-5.4.0-1057-awsUpgrade linux-image-4.15.0-1124-azureUpgrade linux-image-5.11.0-1019-oracleUpgrade linux-image-5.11.0-1017-kvmUpgrade linux-image-snapdragonUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-generic-lpaeUpgrade linux-image-5.11.0-37-genericUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-4.15.0-1113-snapdragonUpgrade linux-image-raspi-nolpaeUpgrade linux-image-4.4.0-1100-kvmUpgrade linux-image-gkeUpgrade linux-image-aws-hweUpgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-genericUpgrade linux-image-4.15.0-1112-awsUpgrade linux-image-5.4.0-1059-azureUpgrade linux-image-5.10.0-1050-oemUpgrade linux-image-4.4.0-222-genericUpgrade linux-image-generic-lts-xenialUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-4.15.0-159-genericUpgrade linux-image-generic-64kUpgrade linux-image-gkeop-5.4Upgrade linux-image-lowlatencyUpgrade linux-image-4.15.0-1028-dell300xUpgrade linux-image-5.4.0-88-lowlatencyUpgrade linux-image-oem-20.04Upgrade linux-image-oracleUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-gkeopUpgrade linux-image-5.4.0-1047-kvmUpgrade linux-image-5.4.0-1055-oracleUpgrade linux-image-5.4.0-88-generic-lpaeUpgrade linux-image-4.15.0-1100-kvmUpgrade linux-image-4.4.0-1138-awsUpgrade linux-image-5.4.0-1053-gkeUpgrade linux-image-4.15.0-1081-oracleUpgrade linux-image-aws-lts-18.04Upgrade linux-image-5.11.0-1017-azureUpgrade linux-image-lowlatency-hwe-16.04 | Sep 28, 2021 | Aug 5, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Aug 5, 2021 |
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