In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perfUpgrade kernel-toolsUpgrade perfUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade perf-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-develUpgrade kernel-headers | Apr 27, 2020 | Mar 27, 2018 |
| Amazon_linux | — | Upgrade kernel | May 31, 2018 | Mar 27, 2018 |
| Centos_linux | — | Upgrade kernel | Jun 1, 2018 | Mar 27, 2018 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Mar 27, 2018 |
| Oracle_linux | — | Upgrade kernel | May 10, 2018 | Sep 13, 2017 |
| Redhat_linux | — | Upgrade kernel | May 9, 2018 | Mar 27, 2018 |
| Suse | — | Upgrade kernel-devel-azureUpgrade kernel-docsUpgrade kernel-source-azureUpgrade kernel-default-extraUpgrade kernel-obs-buildUpgrade kernel-defaultUpgrade kernel-default-manUpgrade kernel-azure-base | Apr 19, 2018 | Mar 27, 2018 |
| Ubuntu | — | Upgrade linuxUpgrade linux-raspi2 | Nov 19, 2024 | Mar 27, 2018 |
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