CVE-2017-18200 Denial of service in n/a

What is CVE-2017-18200?

CVE-2017-18200 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Feb 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The f2fs implementation in the Linux kernel before 4.14 mishandles reference counts associated with f2fs_wait_discard_bios calls, which allows local users to cause a denial of service (BUG), as demonstrated by fstrim.

Weakness: CWE-20

Which versions are affected by CVE-2017-18200?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-18200?

No fix has been published for CVE-2017-18200 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-18200 being exploited?

There is no known exploitation of CVE-2017-18200 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 GHSA-j9rw-gf83-2qrw.