CVE-2022-23085: Potential jail escape vulnerabilities in netmap

First published: Thu Feb 15 2024(Updated: )

A user-provided integer option was passed to nmreq_copyin() without checking if it would overflow. This insufficient bounds checking could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.

Credit: secteam@freebsd.org

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