Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix VF illegal register access Register WX_CFG_PORT_ST is a PF restricted register. When a VF is initialized, attempting to read this register triggers an illegal register access, which lead to a system hang. When the device is VF, the bus function ID can be obtained directly from the PCI_FUNC(pdev->devfn).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.6.117, < 6.6.140 |
References
- https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92Patch
- https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721dPatch
- https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562Patch
- https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707Patch
- https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0Patch
FAQ
What is CVE-2026-46142?
CVE-2026-46142 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix VF illegal register access Register WX_CFG_PORT_ST is a PF restricted register. When a VF is initialized, attempti...
How severe is CVE-2026-46142?
CVE-2026-46142 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46142?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.