CVE-2014-8086 Race condition in n/a
Local attackers can cause denial of service by exploiting a race condition in the ext4 file write function via concurrent write and fcntl operations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-8086?
CVE-2014-8086 is a medium-severity vulnerability in Linux kernel, published on 13 Oct 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Race condition in the ext4_file_write_iter function in fs/ext4/file.c in the Linux kernel through 3.17 allows local users to cause a denial of service (file unavailability) via a combination of a write action and an F_SETFL fcntl operation for the O_DIRECT flag.
Weakness: CWE-362
Which versions are affected by CVE-2014-8086?
It affects 2 products.
Products include Linux kernel, Suse Suse Linux Enterprise Server.
How do I fix CVE-2014-8086?
Apply the vendor's patch.
Is CVE-2014-8086 being exploited?
There is no known exploitation of CVE-2014-8086 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2014-8086, GHSA-9jxp-4r84-xf98, UBUNTU-CVE-2014-8086.