Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization Syzbot reported shift-out-of-bounds exception on MDIO bus initialization. The PHY address should be masked to 5 bits (0-31). Without this mask, invalid PHY addresses could be used, potentially causing issues with MDIO bus operations. Fix this by masking the PHY address with 0x1f (31 decimal) to ensure it stays within the valid range.
References (7)
Core 7
Core References
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Scores
CVSS v3
7.1
EPSS
0.0002
EPSS Percentile
4.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (6)
debian/debian_linux
11.0
linux/Kernel
6.12.43 - 6.12.44linux
linux/Kernel
6.16.2 - 6.16.4linux
linux/linux_kernel
6.12.43
linux/linux_kernel
6.17 rc2
linux/linux_kernel
6.15.11 - 6.16
Published
Sep 05, 2025
Tracked Since
Feb 18, 2026