CVE-2017-18224 Race condition in n/a

What is CVE-2017-18224?

CVE-2017-18224 is a medium-severity vulnerability in Linux kernel, published on 12 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.

Weakness: CWE-362

Which versions are affected by CVE-2017-18224?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-18224?

Upgrade to a fixed version.

Is CVE-2017-18224 being exploited?

There is no known exploitation of CVE-2017-18224 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-2017-18224, GHSA-6434-jhwc-gm9v, UBUNTU-CVE-2017-18224.