CVE-2023-6531: Linux Kernel

High severity, CVSS 7.0. EPSS: 0.2% chance of exploitation in the next 30 days.

A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.

Affected products

• Linux Linux Kernel: before 6.7 (fixed in 6.7); version 6.7 only
• Red Hat Enterprise Linux: version 9.0 only

Published 2024-01-21. Last modified 2026-08-06.