CVE-2024-43873: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: vhost/vsock: always initialize seqpacket_allow There are two issues around seqpacket_allow: 1. seqpacket_allow is not initialized when socket is created. Thus if features are never set, it will be read uninitialized. 2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared, then seqpacket_allow will not be cleared appropriately (existing apps I know about don't usually do this but it's legal and there's no way to be sure no one relies on this). To fix: - initialize seqpacket_allow after allocation - set it unconditionally in set_features

Affected products

• Linux Linux Kernel: from 5.14, before 5.15.165 (fixed in 5.15.165); from 5.16, before 6.1.103 (fixed in 6.1.103); from 6.2, before 6.6.44 (fixed in 6.6.44); from 6.7, before 6.10.3 (fixed in 6.10.3)

Published 2024-08-21. Last modified 2026-06-17.