CVE-2026-63935

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

iio: adc: nxp-sar-adc: fix division by zero in write_raw

Add a validation check for the sampling frequency value before using it

as a divisor. A user writing zero or a negative value to the

sampling_frequency sysfs attribute triggers a division by zero in the

kernel.

Also prevent unsigned integer underflow when the computed cycle count is

smaller than NXP_SAR_ADC_CONV_TIME, which would wrap the u32 inpsamp to

a huge value.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References