CVE-2023-42752: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

An integer overflow flaw was found in the Linux kernel. This issue leads to the kernel allocating `skb_shared_info` in the userspace, which is exploitable in systems without SMAP protection since `skb_shared_info` contains references to function pointers.

Affected products

• Linux Linux Kernel: up to and including 6.5.7

Published 2023-10-13. Last modified 2026-06-17.