In the Linux kernel, the following vulnerability has been resolved: iio: adc: stm32-adc: fix possible division by zero in processed channel In case the conversion has failed or returned zero, processing *val can lead to a division by zero. Need to check for errors, or converted value is zero, before processing the data. In case the converted value is zero, e.g. the Vrefint channel, this should be considered as invalid in all cases.
https://git.kernel.org/stable/c/c5de6a6f855fdcf1e0ea549fb227a316db51c405
https://git.kernel.org/stable/c/ab4e57adead252dd7f947baed6178f32ede88d38
https://git.kernel.org/stable/c/6dd3bf785d0307d1cf8f4a97c2240b0af14bef50
https://git.kernel.org/stable/c/30d27899cbba5b080954b5d3741bd535806c3101