CVE-2023-1193: Linux Kernel

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

A use-after-free flaw was found in setup_async_work in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. This issue could allow an attacker to crash the system by accessing freed work.

Affected products

• Linux Linux Kernel: before 6.3 (fixed in 6.3); version 6.3 only

Published 2023-11-01. Last modified 2026-06-17.