CVE-2025-38420

Published: July 26, 2025Last modified: July 26, 2025

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

Status

References

• 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