Unrated severityNVD Advisory· Published Feb 15, 2024· Updated Feb 13, 2025
Potential jail escape vulnerabilities in netmap
CVE-2022-23084
Description
The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted during the copyin. This time-of-check to time-of-use bug 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.
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Affected products
2Patches
Vulnerability mechanics
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