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

Status: published. Published: 2025-07-03. Updated: 2026-11-05.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ 4136214f7c46839c15f0f177fe1d5052302c0205; < 1ee8ea6937d13b20f90ff35d71ccc03ba448182d (affected, git); ≥ 4136214f7c46839c15f0f177fe1d5052302c0205; < 68a1037f0bac4de9a585aa9c879ef886109f3647 (affected, git); ≥ 4136214f7c46839c15f0f177fe1d5052302c0205; < 74e18211c2c89ab66c9546baa7408288db61aa0d (affected, git); ≥ 4136214f7c46839c15f0f177fe1d5052302c0205; < c13255389499275bc5489a0b5b7940ccea3aef04 (affected, git); ≥ 4136214f7c46839c15f0f177fe1d5052302c0205; < 9febcc8bded8be0d7efd8237fcef599b6d93b788 (affected, git); ≥ 4136214f7c46839c15f0f177fe1d5052302c0205; < 4c2c372de2e108319236203cce6de44d70ae15cd (affected, git). Source: CNA: Linux
- Linux / Linux: 5.4 (affected); ≥ 0; < 5.4 (unaffected, semver); ≥ 5.15.186; ≤ 5.15.* (unaffected, semver); ≥ 6.1.142; ≤ 6.1.* (unaffected, semver); ≥ 6.6.94; ≤ 6.6.* (unaffected, semver); ≥ 6.12.34; ≤ 6.12.* (unaffected, semver); ≥ 6.15.3; ≤ 6.15.* (unaffected, semver); ≥ 6.16; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.18% as of 2026-11-05; percentile 7.90%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/1ee8ea6937d13b20f90ff35d71ccc03ba448182d (CNA: Linux)

- https://git.kernel.org/stable/c/68a1037f0bac4de9a585aa9c879ef886109f3647 (CNA: Linux)

- https://git.kernel.org/stable/c/74e18211c2c89ab66c9546baa7408288db61aa0d (CNA: Linux)

- https://git.kernel.org/stable/c/c13255389499275bc5489a0b5b7940ccea3aef04 (CNA: Linux)

- https://git.kernel.org/stable/c/9febcc8bded8be0d7efd8237fcef599b6d93b788 (CNA: Linux)

- https://git.kernel.org/stable/c/4c2c372de2e108319236203cce6de44d70ae15cd (CNA: Linux)

- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html (ADP: CVE)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2025-38159; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2025-38159; retrieved 2026-11-05; source updated Not reported

Revision: 1d95ae79ab51e810725301ca210afbf59851a34756a120e4de9d89fdb791c8f6

Canonical: https://y2.dev/cve/CVE-2025-38159

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