CVE-2026-46142

net: libwx: fix VF illegal register access

State: Published
Severity: Not scored
Published: May 28, 2026
Updated: Jun 14, 2026
Reserved: May 13, 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).

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d4187ec2641061748480cdc944fd07653fad50d5 to before d3bd8040497968f6f5470018724ef7b0df92f707Affected f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e to before f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0Affected a04ea57aae375bdda1cb57034d8bcbb351e1f973 to before 33c5bb50b9c40e8451e6aec4487a31d794b98d92Affected a04ea57aae375bdda1cb57034d8bcbb351e1f973 to before 68a007a701bc06fa426507c551ef12514f2e721dAffected a04ea57aae375bdda1cb57034d8bcbb351e1f973 to before 694de316f607fe2473d52ca0707e3918e72c1562Affected 93e52b75f11a8f39b22993ae315b5b9a6b2668a3Affected 6.6.117 to before 6.6.140Affected 6.12.58 to before 6.12.88Affected 6.17.8 to before 6.18Affected
LinuxLinux	6.18Affected before 6.18Not affected 6.6.140 through 6.6.Not affected 6.12.88 through 6.12.Not affected 6.18.30 through 6.18.Not affected 7.0.7 through 7.0.Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

d4187ec2641061748480cdc944fd07653fad50d5 to before d3bd8040497968f6f5470018724ef7b0df92f707Affected
f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e to before f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0Affected
a04ea57aae375bdda1cb57034d8bcbb351e1f973 to before 33c5bb50b9c40e8451e6aec4487a31d794b98d92Affected
a04ea57aae375bdda1cb57034d8bcbb351e1f973 to before 68a007a701bc06fa426507c551ef12514f2e721dAffected
a04ea57aae375bdda1cb57034d8bcbb351e1f973 to before 694de316f607fe2473d52ca0707e3918e72c1562Affected
93e52b75f11a8f39b22993ae315b5b9a6b2668a3Affected
6.6.117 to before 6.6.140Affected
6.12.58 to before 6.12.88Affected
6.17.8 to before 6.18Affected

LinuxLinux

6.18Affected
before 6.18Not affected
6.6.140 through 6.6.*Not affected
6.12.88 through 6.12.*Not affected
6.18.30 through 6.18.*Not affected
7.0.7 through 7.0.*Not affected
7.1 and laterNot affected

References

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