From: Timo Sirainen <tss@iki.fi>
Date: Thu, 8 May 2003 02:09:45 +0000 (+0300)
Subject: Don't crash with invalid first_unseen_uid_lowwater
X-Git-Tag: 1.1.alpha1~4672
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f1d9104a99d39122dafc1a0abc0692b97ee0006c;p=thirdparty%2Fdovecot%2Fcore.git

Don't crash with invalid first_unseen_uid_lowwater

--HG--
branch : HEAD
---

diff --git a/src/lib-storage/index/index-status.c b/src/lib-storage/index/index-status.c
index f554e61a2b..b37fc65d19 100644
--- a/src/lib-storage/index/index-status.c
+++ b/src/lib-storage/index/index-status.c
@@ -21,6 +21,10 @@ static unsigned int get_first_unseen_seq(struct mail_index *index)
 	if (lowwater_uid == hdr->next_uid) {
 		/* no unseen messages */
 		rec = NULL;
+	} else if (lowwater_uid > hdr->next_uid) {
+		index_set_corrupted(index, "first_unseen_uid_lowwater %u >= "
+				    "next_uid %u", lowwater_uid, hdr->next_uid);
+		return 0;
 	} else if (lowwater_uid != 0) {
 		/* begin scanning from the low water mark */
 		rec = index->lookup_uid_range(index, lowwater_uid,