CVE-2025-38420

MEDIUM

Linux Kernel - Null Pointer Dereference in WiFi Carl9170 Firmware Load Failure Handling

Title source: llm
STIX 2.1

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

References (10)

Core 10
Core References

Scores

CVSS v3 5.5
EPSS 0.0007
EPSS Percentile 20.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (28)
debian/debian_linux 11.0
linux/Kernel 2.6.38 - 5.4.295linux
linux/Kernel 5.11.0 - 5.15.186linux
linux/Kernel 5.16.0 - 6.1.142linux
linux/Kernel 5.5.0 - 5.10.239linux
linux/Kernel 6.13.0 - 6.15.4linux
linux/Kernel 6.2.0 - 6.6.95linux
linux/Kernel 6.7.0 - 6.12.35linux
Linux/Linux < 2.6.38
Linux/Linux 2.6.38
... and 18 more
Published Jul 25, 2025
Tracked Since Feb 18, 2026