CVE-2022-0646

A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancel_work_sync after the unregister_netdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.

• CWE-459
• CWE-416

• https://lore.kernel.org/all/20220211011552.1861886-1-jk%40codeconstruct.com.auMailing List, Patch
• https://security.netapp.com/advisory/ntap-20220318-0006/Third Party Advisory
• https://lore.kernel.org/all/20220211011552.1861886-1-jk%40codeconstruct.com.auMailing List, Patch
• https://security.netapp.com/advisory/ntap-20220318-0006/Third Party Advisory

Published

Feb 18, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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