hush: do not allow sh -c '{ echo boo }'

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/shell/hush.c b/shell/hush.c
index 0bc67ecc9..a01db9c75 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -4533,12 +4533,14 @@ static struct pipe *parse_stream(char **pstring,
 				syntax_error_unterm_str("here document");
 				goto parse_error;
 			}
-			/* end_trigger == '}' case errors out earlier,
-			 * checking only ')' */
 			if (end_trigger == ')') {
 				syntax_error_unterm_ch('(');
 				goto parse_error;
 			}
+			if (end_trigger == '}') {
+				syntax_error_unterm_ch('{');
+				goto parse_error;
+			}
 
 			if (done_word(&dest, &ctx)) {
 				goto parse_error;