CVE-2025-40239net: phy: micrel: always set shared->phydev for LAN8814
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- May 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from b3f1a08fcf0dd58d99b14b9f8fbd1929f188b746 before da1ef8e9eb5d4a12bec32d11636e521e7d529b9e; from b3f1a08fcf0dd58d99b14b9f8fbd1929f188b746 before b093b06826b836c2824858669db080c190c04715; from b3f1a08fcf0dd58d99b14b9f8fbd1929f188b746 before 399d10934740ae8cdaa4e3245f7c5f6c332da844 | CNA record |
References
- https://git.kernel.org/stable/c/da1ef8e9eb5d4a12bec32d11636e521e7d529b9e
- https://git.kernel.org/stable/c/b093b06826b836c2824858669db080c190c04715
- https://git.kernel.org/stable/c/399d10934740ae8cdaa4e3245f7c5f6c332da844
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.