CVE-2026-46142
Published: June 2, 2026Last modified: June 24, 2026
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).
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Fixed (6.12.92-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
References
- https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92
- https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d
- https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562
- https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707
- https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0