CVE-2016-2546 Race condition in n/a

Medium 5.1 Published Updated

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.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-2546, GHSA-qr7g-w49q-3pg6, UBUNTU-CVE-2016-2546.

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