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A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-tools-libs-devel | May 4, 2022 | Feb 11, 2022 |
| Amazon Linux Ami 2 | — | Upgrade kernel-tools-develUpgrade perf-debuginfoUpgrade python-perfUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade perfUpgrade kernel-livepatch-5.10.82-83.359Upgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-develUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-livepatch-5.10.82-83.359-debuginfoUpgrade kernel-toolsUpgrade kernel-livepatch-5.10.93-87.444 | Jul 4, 2022 | Feb 11, 2022 |
| Amazon_linux_2023 | — | Upgrade kernel-livepatch-6.1.10-15.42Upgrade kernel-libbpf-staticUpgrade kernel-tools-develUpgrade kernel-libbpf-develUpgrade kernel-toolsUpgrade kernelUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade python3-perf-debuginfoUpgrade bpftoolUpgrade perfUpgrade perf-debuginfoUpgrade kernel-libbpfUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-tools-debuginfoUpgrade python3-perfUpgrade kernel-debuginfo | Feb 17, 2025 | Jan 18, 2022 |
| Centos_linux | — | Upgrade kpatch-patch-4_18_0-348-debugsourceUpgrade kpatch-patch-4_18_0-348_2_1-debuginfoUpgrade kpatch-patch-4_18_0-348_7_1-debuginfoUpgrade kpatch-patch-4_18_0-348_7_1-debugsourceUpgrade kernelUpgrade kpatch-patch-4_18_0-348-debuginfoUpgrade kpatch-patch-4_18_0-348_2_1-debugsourceUpgrade kpatch-patch-4_18_0-348Upgrade kpatch-patch-4_18_0-348_7_1Upgrade kernel-rtUpgrade kpatch-patch-4_18_0-348_2_1 | Feb 17, 2022 | Feb 11, 2022 |
| Debian | — | Upgrade linux | Nov 4, 2022 | Feb 11, 2022 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Feb 15, 2022 | Jan 18, 2022 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rt | Jan 20, 2022 | Jan 19, 2022 |
| Rocky_linux | — | Upgrade kernel-rtUpgrade python3-perfUpgrade kernel-rt-modulesUpgrade kernel-tools-debuginfoUpgrade kernel-modulesUpgrade kernel-rt-debugUpgrade kernel-rt-develUpgrade kernel-rt-debuginfoUpgrade kernel-tools-libs-develUpgrade kernel-coreUpgrade kernel-rt-coreUpgrade kernel-toolsUpgrade kernel-rt-debug-modules-extraUpgrade perf-debuginfoUpgrade kernel-develUpgrade perfUpgrade kernel-rt-debug-develUpgrade kernel-debug-debuginfoUpgrade kernel-tools-libsUpgrade kernel-rt-kvmUpgrade kernel-modules-extraUpgrade kernel-debug-modules-extraUpgrade kernel-cross-headersUpgrade kernel-rt-debug-coreUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-debugUpgrade kernel-debuginfoUpgrade kernel-debug-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-debug-modulesUpgrade kernelUpgrade bpftoolUpgrade python3-perf-debuginfoUpgrade kernel-rt-debug-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-rt-modules-extraUpgrade kernel-debug-develUpgrade kernel-headers | May 5, 2022 | Feb 11, 2022 |
| Suse | — | Upgrade dtb-amlogicUpgrade kernel-default-livepatch-develUpgrade gfs2-kmp-defaultUpgrade kernel-preempt-livepatch-develUpgrade gfs2-kmp-preemptUpgrade cluster-md-kmp-defaultUpgrade dtb-renesasUpgrade kernel-obs-buildUpgrade reiserfs-kmp-azureUpgrade kernel-obs-qaUpgrade dtb-socionextUpgrade dlm-kmp-azureUpgrade dtb-marvellUpgrade dtb-hisiliconUpgrade dtb-mediatekUpgrade dtb-sprdUpgrade kernel-debug-livepatch-develUpgrade kernel-docsUpgrade kernel-debug-develUpgrade kernel-debugUpgrade kernel-preempt-optionalUpgrade cluster-md-kmp-64kbUpgrade kselftests-kmp-preemptUpgrade dtb-nvidiaUpgrade dtb-armUpgrade dtb-rockchipUpgrade kernel-macrosUpgrade kernel-default-baseUpgrade kernel-64kb-extraUpgrade ocfs2-kmp-azureUpgrade kernel-preempt-extraUpgrade dtb-apmUpgrade kselftests-kmp-defaultUpgrade kernel-default-extraUpgrade dlm-kmp-preemptUpgrade dtb-amdUpgrade kernel-defaultUpgrade dlm-kmp-defaultUpgrade reiserfs-kmp-defaultUpgrade kernel-azure-extraUpgrade kernel-sourceUpgrade kernel-kvmsmall-develUpgrade kernel-azureUpgrade cluster-md-kmp-preemptUpgrade kernel-preemptUpgrade kernel-kvmsmallUpgrade kernel-default-livepatchUpgrade dtb-zteUpgrade reiserfs-kmp-64kbUpgrade ocfs2-kmp-preemptUpgrade kernel-64kb-livepatch-develUpgrade gfs2-kmp-64kbUpgrade dtb-freescaleUpgrade dtb-allwinnerUpgrade reiserfs-kmp-preemptUpgrade kernel-source-vanillaUpgrade kernel-develUpgrade dtb-xilinxUpgrade gfs2-kmp-azureUpgrade kernel-source-azureUpgrade kernel-azure-develUpgrade kernel-default-optionalUpgrade kernel-syms-azureUpgrade ocfs2-kmp-64kbUpgrade kselftests-kmp-azureUpgrade dtb-alUpgrade dtb-exynosUpgrade kernel-default-develUpgrade kernel-docs-htmlUpgrade dlm-kmp-64kbUpgrade kselftests-kmp-64kbUpgrade kernel-64kb-optionalUpgrade dtb-qcomUpgrade kernel-azure-optionalUpgrade kernel-azure-livepatch-develUpgrade cluster-md-kmp-azureUpgrade kernel-preempt-develUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-64kb-develUpgrade kernel-zfcpdumpUpgrade kernel-default-base-rebuildUpgrade dtb-broadcomUpgrade kernel-64kbUpgrade kernel-symsUpgrade dtb-lgUpgrade dtb-caviumUpgrade kernel-devel-azureUpgrade ocfs2-kmp-defaultUpgrade dtb-altera | Feb 12, 2022 | Jan 28, 2022 |
| Ubuntu | — | Upgrade linux-image-gkeop-5.4Upgrade linux-image-5.4.0-1025-bluefieldUpgrade linux-image-raspi2Upgrade linux-image-5.4.0-1067-azureUpgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-gkeopUpgrade linux-image-5.13.0-27-lowlatencyUpgrade linux-image-bluefieldUpgrade linux-image-virtualUpgrade linux-image-generic-lpaeUpgrade linux-image-5.4.0-1031-gkeopUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-5.13.0-1012-gcpUpgrade linux-image-5.11.0-49-lowlatencyUpgrade linux-image-5.13.0-1010-kvmUpgrade linux-image-5.11.0-1027-oracleUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-gcpUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-ibm-lts-20.04Upgrade linux-image-oem-20.04bUpgrade linux-image-5.11.0-1027-raspiUpgrade linux-image-aws-lts-20.04Upgrade linux-image-raspi-nolpaeUpgrade linux-image-intelUpgrade linux-image-5.4.0-1053-kvmUpgrade linux-image-5.4.0-1050-raspiUpgrade linux-image-ibmUpgrade linux-image-5.11.0-1027-awsUpgrade linux-image-5.13.0-1015-raspi-nolpaeUpgrade linux-image-5.4.0-1062-gcpUpgrade linux-image-5.13.0-27-genericUpgrade linux-image-genericUpgrade linux-image-5.13.0-1012-azureUpgrade linux-image-generic-64kUpgrade linux-image-azure-lts-20.04Upgrade linux-image-lowlatencyUpgrade linux-image-5.11.0-1028-gcpUpgrade linux-image-5.13.0-27-generic-64kUpgrade linux-image-5.11.0-49-generic-lpaeUpgrade linux-image-oem-20.04cUpgrade linux-image-5.4.0-1012-ibmUpgrade linux-image-5.4.0-96-lowlatencyUpgrade linux-image-5.11.0-1024-kvmUpgrade linux-image-gkeUpgrade linux-image-oracleUpgrade linux-image-5.13.0-1015-oracleUpgrade linux-image-5.13.0-1011-awsUpgrade linux-image-5.11.0-1027-raspi-nolpaeUpgrade linux-image-azureUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-5.4.0-96-generic-lpaeUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-5.11.0-1027-azureUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-5.14.0-1020-oemUpgrade linux-image-raspiUpgrade linux-image-5.4.0-1059-gkeUpgrade linux-image-gke-5.4Upgrade linux-image-awsUpgrade linux-image-5.4.0-1061-oracleUpgrade linux-image-5.10.0-1057-oemUpgrade linux-image-5.13.0-27-generic-lpaeUpgrade linux-image-5.11.0-49-genericUpgrade linux-image-oem-20.04Upgrade linux-image-oem-20.04dUpgrade linux-image-5.13.0-1028-oemUpgrade linux-image-5.11.0-49-generic-64kUpgrade linux-image-oem-osp1Upgrade linux-image-5.13.0-1010-intelUpgrade linux-image-oemUpgrade linux-image-5.4.0-96-genericUpgrade linux-image-5.13.0-1015-raspiUpgrade linux-image-kvm | Apr 1, 2022 | Feb 11, 2022 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Feb 11, 2022 |
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