CVE-2025-38725

In the Linux kernel, the following vulnerability has been resolved: net: usb: asix_devices: add phy_mask for ax88772 mdio bus Without setting phy_mask for ax88772 mdio bus, current driver may create at most 32 mdio phy devices with phy address range from 0x00 ~ 0x1f. DLink DUB-E100 H/W Ver B1 is such a device. However, only one main phy device will bind to net phy driver. This is creating issue during system suspend/resume since phy_polling_mode() in phy_state_machine() will directly deference member of phydev->drv for non-main phy devices. Then NULL pointer dereference issue will occur. Due to only external phy or internal phy is necessary, add phy_mask for ax88772 mdio bus to workarnoud the issue.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2025-09-04

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• debian:debian_linux
• linux:linux_kernel

References

• https://git.kernel.org/stable/c/4faff70959d51078f9ee8372f8cff0d7045e4114
• https://git.kernel.org/stable/c/59ed6fbdb1bc03316e09493ffde7066f031c7524
• https://git.kernel.org/stable/c/75947d3200de98a9ded9ad8972e02f1a177097fe
• https://git.kernel.org/stable/c/a754ab53993b1585132e871c5d811167ad3c52ff
• https://git.kernel.org/stable/c/ad1f8313aeec0115f9978bd2d002ef4a8d96c773

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