CVE-2025-38736

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.1 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
LinuxCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
VendorProductVersion
linuxlinux_kernel
6.15.11 ≤
𝑥
< 6.16
linuxlinux_kernel
6.16.2 ≤
𝑥
< 6.16.4
linuxlinux_kernel
6.12.43
linuxlinux_kernel
6.17:rc2
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
not-affected
bullseye (security)
5.10.247-1
fixed
bookworm
6.1.159-1
fixed
bookworm (security)
6.1.158-1
fixed
trixie
6.12.63-1
fixed
trixie (security)
6.12.48-1
fixed
forky
6.17.13-1
fixed
sid
6.18.5-1
fixed
linux-6.1
bullseye (security)
6.1.159-1~deb11u1
fixed