CVE-2021-47437 iio: adis16475: fix deadlock on frequency set
A deadlock in the ADIS16475 IIO driver allows local attackers to cause a system denial of service by triggering specific frequency settings.
- 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-2021-47437?
CVE-2021-47437 is a medium-severity vulnerability in Linux kernel, published on 22 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
iio: adis16475: fix deadlock on frequency set
With commit 39c024b51b560 ("iio: adis16475: improve sync scale mode handling"), two deadlocks were introduced: 1) The call to 'adis_write_reg_16()' was not changed to it's unlocked version. 2) The lock was not being released on the success path of the function.
This change fixes both these issues.
Weakness: CWE-667
Which versions are affected by CVE-2021-47437?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2021-47437?
Apply the vendor's patch.
Is CVE-2021-47437 being exploited?
There is no known exploitation of CVE-2021-47437 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2021-47437, GHSA-3pg2-q6q7-9rmm, UBUNTU-CVE-2021-47437.