CVE-2023-1032: Canonical Ubuntu Linux

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

The Linux kernel io_uring IORING_OP_SOCKET operation contained a double free in function __sys_socket_file() in file net/socket.c. This issue was introduced in da214a475f8bd1d3e9e7a19ddfeb4d1617551bab and fixed in 649c15c7691e9b13cbe9bf6c65c365350e056067.

Affected products

• Canonical Ubuntu Linux: version 22.04 only; version 22.10 only
• Linux Linux Kernel: from 5.19, before 6.3 (fixed in 6.3); version 6.3 only

Published 2024-01-08. Last modified 2026-06-17.