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An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation is not correctly accounted for when restricting subsequent operations.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-tools-libs-devel | May 4, 2022 | Apr 20, 2021 |
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernel-toolsUpgrade kernel-livepatch-4.14.232-176.381Upgrade kernel-tools-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade python-perfUpgrade bpftoolUpgrade kernelUpgrade perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-tools-develUpgrade perfUpgrade kernel-debuginfo-common-aarch64 | May 26, 2021 | Apr 20, 2021 |
| Amazon_linux | — | Upgrade kernel | May 26, 2021 | Apr 20, 2021 |
| Centos_linux | — | Upgrade kernel-rtUpgrade kernel | Nov 10, 2021 | Apr 20, 2021 |
| Debian | — | Upgrade linux | Jun 23, 2021 | Apr 20, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernel-sourceUpgrade kernel-toolsUpgrade kernel-develUpgrade python3-perfUpgrade perfUpgrade kernel-headersUpgrade kernel-tools-libsUpgrade kernelUpgrade bpftoolUpgrade python-perf | Aug 10, 2021 | Apr 20, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel | Aug 10, 2021 | Apr 20, 2021 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Jul 16, 2021 | Apr 18, 2021 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | Nov 10, 2021 | Apr 20, 2021 |
| Suse | — | Upgrade kernel-kvmsmall-develUpgrade kernel-default-livepatch-develUpgrade kernel-default-optionalUpgrade kernel-docs-htmlUpgrade cluster-md-kmp-preemptUpgrade kernel-devel-azureUpgrade kernel-default-baseUpgrade cluster-md-kmp-rtUpgrade gfs2-kmp-rt_debugUpgrade ocfs2-kmp-defaultUpgrade cluster-md-kmp-azureUpgrade kernel-preempt-optionalUpgrade kernel-default-extraUpgrade kselftests-kmp-64kbUpgrade kernel-default-develUpgrade kernel-obs-qaUpgrade kernel-develUpgrade kernel-rt_debugUpgrade kernel-64kb-livepatch-develUpgrade cluster-md-kmp-defaultUpgrade kernel-zfcpdumpUpgrade kernel-64kb-develUpgrade kernel-kvmsmallUpgrade kernel-source-azureUpgrade dlm-kmp-defaultUpgrade reiserfs-kmp-rtUpgrade kernel-symsUpgrade gfs2-kmp-64kbUpgrade kernel-preempt-livepatch-develUpgrade cluster-md-kmp-rt_debugUpgrade kernel-azure-extraUpgrade kernel-default-livepatchUpgrade kernel-64kb-optionalUpgrade kernel-vanilla-baseUpgrade ocfs2-kmp-azureUpgrade kernel-sourceUpgrade kernel-debug-develUpgrade kernel-kvmsmall-livepatch-develUpgrade dlm-kmp-azureUpgrade kernel-azure-optionalUpgrade kernel-64kbUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-preemptUpgrade kernel-devel-rtUpgrade gfs2-kmp-rtUpgrade reiserfs-kmp-preemptUpgrade kernel-macrosUpgrade kernel-debugUpgrade dlm-kmp-64kbUpgrade kernel-rt-develUpgrade ocfs2-kmp-rtUpgrade reiserfs-kmp-azureUpgrade kernel-rt_debug-extraUpgrade kselftests-kmp-defaultUpgrade kernel-defaultUpgrade dlm-kmp-rtUpgrade gfs2-kmp-preemptUpgrade kernel-source-rtUpgrade dlm-kmp-preemptUpgrade kernel-preempt-extraUpgrade ocfs2-kmp-rt_debugUpgrade kernel-syms-rtUpgrade dlm-kmp-rt_debugUpgrade kernel-default-manUpgrade kernel-rtUpgrade kernel-default-base-rebuildUpgrade kselftests-kmp-azureUpgrade kernel-docsUpgrade kselftests-kmp-preemptUpgrade cluster-md-kmp-64kbUpgrade kernel-azure-develUpgrade kernel-debug-livepatch-develUpgrade kernel-rt_debug-develUpgrade kernel-azure-livepatch-develUpgrade kernel-azure-baseUpgrade reiserfs-kmp-rt_debugUpgrade gfs2-kmp-defaultUpgrade ocfs2-kmp-64kbUpgrade kernel-obs-buildUpgrade kselftests-kmp-rt_debugUpgrade kernel-source-vanillaUpgrade kernel-preemptUpgrade reiserfs-kmp-64kbUpgrade kernel-azureUpgrade kernel-rt-extraUpgrade kselftests-kmp-rtUpgrade kernel-64kb-extraUpgrade gfs2-kmp-azureUpgrade kernel-preempt-develUpgrade kernel-syms-azure | May 13, 2021 | Apr 20, 2021 |
| Ubuntu | — | Upgrade linux-image-5.8.0-59-lowlatencyUpgrade linux-image-5.11.0-1008-awsUpgrade linux-image-5.11.0-18-genericUpgrade linux-image-raspi-nolpaeUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.11.0-1009-raspi-nolpaeUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.8.0-1029-raspiUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.11.0-18-generic-lpaeUpgrade linux-image-5.8.0-1038-awsUpgrade linux-image-kvmUpgrade linux-image-5.8.0-59-generic-lpaeUpgrade linux-image-5.11.0-1007-oracleUpgrade linux-image-raspiUpgrade linux-image-awsUpgrade linux-image-5.11.0-1008-gcpUpgrade linux-image-oracleUpgrade linux-image-gcpUpgrade linux-image-5.11.0-1006-azureUpgrade linux-image-5.8.0-1030-kvmUpgrade linux-image-5.8.0-1036-azureUpgrade linux-image-5.8.0-59-genericUpgrade linux-image-5.8.0-1029-raspi-nolpaeUpgrade linux-image-oem-20.04bUpgrade linux-image-virtualUpgrade linux-image-azureUpgrade linux-image-lowlatencyUpgrade linux-image-5.8.0-59-generic-64kUpgrade linux-image-gkeUpgrade linux-image-5.11.0-1009-raspiUpgrade linux-image-5.8.0-1035-gcpUpgrade linux-image-oem-20.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-generic-lpaeUpgrade linux-image-genericUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.11.0-1008-kvmUpgrade linux-image-5.10.0-1029-oemUpgrade linux-image-5.11.0-18-generic-64kUpgrade linux-image-5.8.0-1033-oracleUpgrade linux-image-generic-64kUpgrade linux-image-5.11.0-18-lowlatency | Jun 3, 2021 | Apr 20, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 20, 2021 |
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