CVE-2018-1000200

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).

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=27ae357fa82be5ab73b2ef8d39dcb8ca2563483a	Mitigation Patch
https://access.redhat.com/security/cve/cve-2018-1000200	Third Party Advisory
http://seclists.org/oss-sec/2018/q2/67	Mailing List Third Party Advisory
https://marc.info/?l=linux-kernel&m=152460926619256	Mailing List Third Party Advisory
https://marc.info/?l=linux-kernel&m=152400522806945	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/104397	Third Party Advisory VDB Entry
https://usn.ubuntu.com/3752-2/
https://usn.ubuntu.com/3752-1/
https://usn.ubuntu.com/3752-3/
https://access.redhat.com/errata/RHSA-2018:2948

Configuration 1

cpe:2.3:o:linux:linux_kernel:4.14:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.16:*:*:*:*:*:*:*

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Published : 2018-06-05 01:29

Updated : 2018-10-31 10:30

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NVD link : CVE-2018-1000200

Mitre link : CVE-2018-1000200

No products.

CWE-476