CVE-2025-71094: net: usb: asix: validate PHY address before use
In the Linux kernel, the following vulnerability has been resolved:
net: usb: asix: validate PHY address before use
The ASIX driver reads the PHY address from the USB device via asixreadphyaddr(). A malicious or faulty device can return an invalid address (>= PHYMAXADDR), which causes a warning in mdiobusgetphy():
addr 207 out of range WARNING: drivers/net/phy/mdiobus.c:76
Validate the PHY address in asixreadphyaddr() and remove the now-redundant check in ax88172a.c.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2025-71094?
CVE-2025-71094 has a medium severity rating due to potential unauthorized access through invalid PHY addresses.
How do I fix CVE-2025-71094?
To fix CVE-2025-71094, update your Linux kernel to the latest version where the vulnerability has been patched.
What systems are affected by CVE-2025-71094?
CVE-2025-71094 affects systems running the ASIX driver in the Linux kernel.
What kind of devices are vulnerable due to CVE-2025-71094?
Devices that utilize the ASIX driver can be vulnerable to CVE-2025-71094 if they provide an invalid PHY address.
How does CVE-2025-71094 exploit the Linux kernel?
CVE-2025-71094 allows a malicious or faulty device to manipulate PHY addresses, potentially leading to system misbehavior.