From: Timo Sirainen <tss@iki.fi>
Date: Thu, 28 Jul 2011 14:46:37 +0000 (+0300)
Subject: lib-storage: Fixed crashing on "NOT <nonexistent sequence>" search.
X-Git-Tag: 2.0.14~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0bcc7b7b453dcf293a7ff863cc395ab06ff01928;p=thirdparty%2Fdovecot%2Fcore.git

lib-storage: Fixed crashing on "NOT <nonexistent sequence>" search.
---

diff --git a/src/lib-storage/index/index-search.c b/src/lib-storage/index/index-search.c
index 808e9f2529..fbd8a316e5 100644
--- a/src/lib-storage/index/index-search.c
+++ b/src/lib-storage/index/index-search.c
@@ -745,7 +745,7 @@ static bool search_msgset_fix_limits(unsigned int messages_count,
 	else {
 		/* if all messages are in the range, it can't match */
 		range = array_get_modifiable(seqset, &count);
-		return range[0].seq1 != 1 ||
+		return count == 0 || range[0].seq1 != 1 ||
 			range[count-1].seq2 != messages_count;
 	}
 }
@@ -768,6 +768,10 @@ static void search_msgset_fix(unsigned int messages_count,
 	if (!not) {
 		min_seq = range[0].seq1;
 		max_seq = range[count-1].seq2;
+	} else if (count == 0) {
+		/* matches all messages */
+		min_seq = 1;
+		max_seq = messages_count;
 	} else {
 		min_seq = range[0].seq1 > 1 ? 1 : range[0].seq2 + 1;
 		max_seq = range[count-1].seq2 < messages_count ?