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).

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
d4187ec2641061748480cdc944fd07653fad50d5 affected < d3bd8040497968f6f5470018724ef7b0df92f707
f0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e affected < f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0
a04ea57aae375bdda1cb57034d8bcbb351e1f973 affected < 33c5bb50b9c40e8451e6aec4487a31d794b98d92
a04ea57aae375bdda1cb57034d8bcbb351e1f973 affected < 68a007a701bc06fa426507c551ef12514f2e721d
a04ea57aae375bdda1cb57034d8bcbb351e1f973 affected < 694de316f607fe2473d52ca0707e3918e72c1562
93e52b75f11a8f39b22993ae315b5b9a6b2668a3 affected —
6.6.117 affected < 6.6.140
6.12.58 affected < 6.12.88
6.17.8 affected < 6.18
Linux Linux affected
Version Status Constraints
6.18 affected —
0 unaffected < 6.18
6.6.140 unaffected ≤ 6.6.*
6.12.88 unaffected ≤ 6.12.*
6.18.30 unaffected ≤ 6.18.*
7.0.7 unaffected ≤ 7.0.*
7.1-rc3 unaffected ≤ *

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92 cve-icon cve-icon
https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d cve-icon cve-icon
https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562 cve-icon cve-icon
https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707 cve-icon cve-icon
https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0 cve-icon cve-icon
History

Thu, 28 May 2026 12:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-269

Thu, 28 May 2026 10:15:00 +0000

Type Values Removed Values Added
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).
Title net: libwx: fix VF illegal register access
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-28T09:35:57.837Z

Reserved: 2026-05-13T15:03:33.100Z

Link: CVE-2026-46142

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-28T10:16:29.790

Modified: 2026-05-28T10:16:29.790

Link: CVE-2026-46142

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T11:45:16Z

Weaknesses