CVE-2025-38420 Information

Description

In the Linux kernel the following vulnerability has been resolved:

wifi: carl9170: do not ping device which has failed to load firmware

Syzkaller reports [1 2] crashes caused by an attempts to ping the device which has failed to load firmware. Since such a device doesn’t pass ‘ieee80211_register_hw()’ an internal workqueue managed by ‘ieee80211_queue_work()’ is not yet created and an attempt to queue work on it causes null-ptr-deref.

[1] https://syzkaller.appspot.com/bug?extid=9a4aec827829942045ff [2] https://syzkaller.appspot.com/bug?extid=0d8afba53e8fb2633217

Reference

https://git.kernel.org/stable/c/0140d3d37f0f1759d1fdedd854c7875a86e15f8d https://git.kernel.org/stable/c/11ef72b3312752c2ff92f3c1e64912be3228ed36 https://git.kernel.org/stable/c/15d25307692312cec4b57052da73387f91a2e870 https://git.kernel.org/stable/c/301268dbaac8e9013719e162a000202eac8054be https://git.kernel.org/stable/c/4e9ab5c48ad5153cc908dd29abad0cd2a92951e4 https://git.kernel.org/stable/c/527fad1ae32ffa2d4853a1425fe1c8dbb8c9744c https://git.kernel.org/stable/c/8a3734a6f4c05fd24605148f21fb2066690d61b3 https://git.kernel.org/stable/c/bfeede26e97ce4a15a0b961118de4a0e28c9907a

Related CNNVD

CNNVD-202507-3250 (Published: 2025-07-25)