CVE-2025-38693

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-09-04 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar In w7090p_tuner_write_serpar, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

Weakness Classification (1)

CWE-476

Affected Software (12)

Vendor	Product	Version
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < 7a41ecfc3415ebe3b4c44f96b3337691dcf431a3
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < b3d77a3fc71c084575d3df4ec6544b3fb6ce587d
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < 17b30e5ded062bd74f8ca6f317e1d415a8680665
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < 454a443eaa792c8865c861a282fe6d4f596abc3a
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < 6bbaec6a036940e22318f0454b50b8000845ab59
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < f98132a59ccc59a8b97987363bc99c8968934756
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < 99690a494d91a0dc86cebd628da4c62c40552bcb
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < 39b06b93f24dff923c4183d564ed28c039150554
Linux	Linux	713d54a8bd812229410a1902cd9b332a2a27af9f < ed0234c8458b3149f15e496b48a1c9874dd24a1b
Linux	Linux	2.6.39
debian	debian_linux	11.0
linux	linux_kernel	2.6.39 – 5.4.297