PT-2026-44265 · Linux · Linux Kernel

Published 2026-05-28 · Updated 2026-05-29 · CVE-2026-46142

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the libwx network component where a Virtual Function (VF) attempts to access the WX CFG PORT ST register. Because this is a Physical Function (PF) restricted register, the illegal access triggers a system hang, potentially causing the SR-IOV virtualization host to freeze.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-46142

Affected Products

Linux Kernel

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-46142 · Security Note
• https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707 · Note
• https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0 · Note
• https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562 · Note
• https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92 · Note
• https://twitter.com/windowsforum/status/2060304065683247309 · Twitter Post
• https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d · Note