CVE-2026-23143

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

Description The Linux kernel contains a misalignment issue within the struct virtnet info structure, specifically related to the virtio net component. This issue arises from the misalignment of rss trailer.hash key data and rss hash key data members, causing a one-byte shift in the RSS key passed to the device, potentially truncating the last byte and adding an uninitialized byte at the beginning. The issue is addressed by utilizing the TRAILING OVERLAP() helper to ensure proper alignment of these members. The vulnerability is present in the structure definition of struct virtio net rss config trailer and struct virtnet info.

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