SUSE: CVE-2018-1000200: SUSE Linux Security Advisory
Description
The Linux Kernel versions 4.14, 4.15, and 4.16 has a null pointer dereference which can result in an out of memory (OOM) killing of large mlocked processes. The issue arises from an oom killed process's final thread calling exit_mmap(), which calls munlock_vma_pages_all() for mlocked vmas.This can happen synchronously with the oom reaper's unmap_page_range() since the vma's VM_LOCKED bit is cleared before munlocking (to determine if any other vmas share the memory and are mlocked).
Solution(s)
- suse-upgrade-cluster-md-kmp-default
- suse-upgrade-dlm-kmp-default
- suse-upgrade-gfs2-kmp-default
- suse-upgrade-kernel-azure-base
- suse-upgrade-kernel-default
- suse-upgrade-kernel-default-extra
- suse-upgrade-kernel-default-man
- suse-upgrade-kernel-devel-azure
- suse-upgrade-kernel-docs
- suse-upgrade-kernel-obs-build
- suse-upgrade-kernel-source-azure
- suse-upgrade-ocfs2-kmp-default
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