CVE-2025-40239

In the Linux kernel, the following vulnerability has been resolved: net: phy: micrel: always set shared->phydev for LAN8814 Currently, during the LAN8814 PTP probe shared->phydev is only set if PTP clock gets actually set, otherwise the function will return before setting it. This is an issue as shared->phydev is unconditionally being used when IRQ is being handled, especially in lan8814_gpio_process_cap and since it was not set it will cause a NULL pointer exception and crash the kernel. So, simply always set shared->phydev to avoid the NULL pointer exception.

Status

Deferred - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2025-12-04

Last modified

2026-10-19

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/da1ef8e9eb5d4a12bec32d11636e521e7d529b9e
• https://git.kernel.org/stable/c/b093b06826b836c2824858669db080c190c04715
• https://git.kernel.org/stable/c/399d10934740ae8cdaa4e3245f7c5f6c332da844