CVE-2025-40239
net: phy: micrel: always set shared->phydev for LAN8814
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 4, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
b3f1a08fcf0dd58d99b14b9f8fbd1929f188b746 < da1ef8e9eb5d4a12bec32d11636e521e7d529b9e b3f1a08fcf0dd58d99b14b9f8fbd1929f188b746 < b093b06826b836c2824858669db080c190c04715 b3f1a08fcf0dd58d99b14b9f8fbd1929f188b746 < 399d10934740ae8cdaa4e3245f7c5f6c332da844
Linux / Linux
6.10