Avoid kernel stack disclosure in compat32 stat
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Authored by emaste on Mar 29 2022, 2:53 PM.

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markj
philip

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rGd3aef2d8fc89: Avoid kernel stack disclosure in compat32 stat

Summary

copy_stat and copy_ostat used by 32-bit compat *stat calls left some
padding bytes uninitialized.

This issue does not exist in stable/12 and later as it was incidentally
addressed as part of the 64-bit inode project.

Reported by:    Reno Robert, Trend Micro Zero Day Initiative
Sponsored by:   The FreeBSD Foundation