CVE-2026-46142

Summary

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).

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd4187ec2641061748480cdc944fd07653fad50d5 < d3bd8040497968f6f5470018724ef7b0df92f707affected
LinuxLinuxf0b3ecdbb5bbee8ca6b2892aba3988c8a3ce858e < f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0affected
LinuxLinuxa04ea57aae375bdda1cb57034d8bcbb351e1f973 < 33c5bb50b9c40e8451e6aec4487a31d794b98d92affected
LinuxLinuxa04ea57aae375bdda1cb57034d8bcbb351e1f973 < 68a007a701bc06fa426507c551ef12514f2e721daffected
LinuxLinuxa04ea57aae375bdda1cb57034d8bcbb351e1f973 < 694de316f607fe2473d52ca0707e3918e72c1562affected
LinuxLinux93e52b75f11a8f39b22993ae315b5b9a6b2668a3affected
LinuxLinux6.6.117 < 6.6.140affected
LinuxLinux6.12.58 < 6.12.88affected
LinuxLinux6.17.8 < 6.18affected
LinuxLinux6.18affected
LinuxLinux0 < 6.18unaffected
LinuxLinux6.6.140 <= 6.6.*unaffected
LinuxLinux6.12.88 <= 6.12.*unaffected
LinuxLinux6.18.30 <= 6.18.*unaffected
LinuxLinux7.0.7 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References