Files
Yura Tkachenko 2b4877576d jailmeta: reject empty keys in metadata lookups
Reject empty keys in metadata lookups with EINVAL to prevent an infinite
loop while holding allprison_lock and pr_mtx. Add tests for empty-key
reads and writes with empty and populated meta/env buffers, trailing
newlines, and empty final values.

Reviewed by:	igoro, jamie
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D61025

(cherry picked from commit d1a465f02b)
2026-11-04 03:48:16 +00:00
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