CVE-2016-2546 Race condition in n/a
Local attackers can cause a system crash via a race condition and use-after-free in the Linux kernel timer module using a crafted ioctl call.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-2546?
CVE-2016-2546 is a medium-severity vulnerability in Linux kernel, published on 27 Apr 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
sound/core/timer.c in the Linux kernel before 4.4.1 uses an incorrect type of mutex, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.
Weakness: CWE-362
Which versions are affected by CVE-2016-2546?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2016-2546?
Apply the vendor's patch.
Is CVE-2016-2546 being exploited?
There is no known exploitation of CVE-2016-2546 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2016-2546, GHSA-qr7g-w49q-3pg6, UBUNTU-CVE-2016-2546.