CVE-2024-50232 iio: adc: ad7124: fix division by zero in ad7124_set_channel_odr()

Medium 5.5 Published Updated

A local attacker can cause a kernel crash via division by zero in the AD7124 ADC driver by writing a zero value to a channel attribute.

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-2024-50232?

CVE-2024-50232 is a medium-severity denial of service vulnerability in Linux kernel, published on 9 Nov 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: adc: ad7124: fix division by zero in ad7124_set_channel_odr()

In the ad7124_write_raw() function, parameter val can potentially be zero. This may lead to a division by zero when DIV_ROUND_CLOSEST() is called within ad7124_set_channel_odr(). The ad7124_write_raw() function is invoked through the sequence: iio_write_channel_raw() -> iio_write_channel_attribute() -> iio_channel_write(), with no checks in place to ensure val is non-zero.

Weakness: CWE-369

Which versions are affected by CVE-2024-50232?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-50232?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-50232 being exploited?

There is no known exploitation of CVE-2024-50232 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-53052, AZL-53147, BELL-CVE-2024-50232, DEBIAN-CVE-2024-50232, GHSA-8cgv-6qhm-jgp2, UBUNTU-CVE-2024-50232.

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