CVE-2025-38725 - net: usb: asix_devices: add phy_mask for ax88772 mdio bus

CVE-2025-38725 - net: usb: asix_devices: add phy_mask for ax88772 mdio bus

https://cvefeed.io/rssfeed/latest.atom / Thu, 09/04/2025 - 20:37
CVE ID : CVE-2025-38725
Published : Sept. 4, 2025, 3:33 p.m. | 1 hour, 6 minutes ago
Description : 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.
Severity: 0.0 | NA
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