freebsd-nq/bin/sh/tests/builtins/case20.0

# $FreeBSD$

# Shells do not agree about what this pattern should match, but it is
# certain that it must not crash and the missing close bracket must not
# be simply ignored.

case B in
[[:alpha:]) echo bad ;;
esac
sh: Fix out of bounds read when there is no ] after a [:class:]. The initial check for a matching ] was incorrect if a ] may be consumed by a [:class:]. The subsequent loop assumed that there must be a ]. Remove the initial check and make the loop cope with a missing ]. Found with afl-fuzz. MFC after: 1 week 2015-08-25 21:55:15 +00:00			`# $FreeBSD$`

			`# Shells do not agree about what this pattern should match, but it is`
			`# certain that it must not crash and the missing close bracket must not`
			`# be simply ignored.`

			`case B in`
			`[[:alpha:]) echo bad ;;`
			`esac`