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bhyve: Accept a variable-length string name for qemu_fwcfg_add_file.
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Authored by jhb on Mar 22 2023, 6:01 PM.
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Details

Summary

It is illegal (UB?) to pass a shorter array to a function argument
that takes a fixed-length array. Do a runtime check for names that
are too long via strlen() instead.

Reported by: GCC -Wstringop-overread

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rG FreeBSD src repository
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