CVE-2017-18216 Null dereference in n/a

What is CVE-2017-18216?

CVE-2017-18216 is a medium-severity vulnerability in Linux kernel, published on 5 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.

Weakness: CWE-476

Which versions are affected by CVE-2017-18216?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-18216?

Apply the vendor's patch.

Is CVE-2017-18216 being exploited?

There is no known exploitation of CVE-2017-18216 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2017-18216, GHSA-rgw3-fq9h-vvg7, UBUNTU-CVE-2017-18216.