Vulnerability 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
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.38, < 5.4.295 |
| Debian | Debian Linux | 11.0 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0140d3d37f0f1759d1fdedd854c7875a86e15f8dPatch
- https://git.kernel.org/stable/c/11ef72b3312752c2ff92f3c1e64912be3228ed36Patch
- https://git.kernel.org/stable/c/15d25307692312cec4b57052da73387f91a2e870Patch
- https://git.kernel.org/stable/c/301268dbaac8e9013719e162a000202eac8054bePatch
- https://git.kernel.org/stable/c/4e9ab5c48ad5153cc908dd29abad0cd2a92951e4Patch
- https://git.kernel.org/stable/c/527fad1ae32ffa2d4853a1425fe1c8dbb8c9744cPatch
- https://git.kernel.org/stable/c/8a3734a6f4c05fd24605148f21fb2066690d61b3Patch
- https://git.kernel.org/stable/c/bfeede26e97ce4a15a0b961118de4a0e28c9907aPatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2025-38420?
CVE-2025-38420 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 pin...
How severe is CVE-2025-38420?
CVE-2025-38420 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-38420?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.