CVE-2025-38693

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()")

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2025-09-04

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• debian:debian_linux
• linux:linux_kernel

References

• https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665
• https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554
• https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a
• https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59
• https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3

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