From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Mon, 22 May 2017 07:11:30 +0000 (+0300)
Subject: lib-index: Fix start_offset > sync_offset error handling for in-memory indexes
X-Git-Tag: 2.2.31.rc1~186
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6ad0dcf169a9f81b2ef2d70d63244f3be3e05ea0;p=thirdparty%2Fdovecot%2Fcore.git

lib-index: Fix start_offset > sync_offset error handling for in-memory indexes
---

diff --git a/src/lib-index/mail-transaction-log-file.c b/src/lib-index/mail-transaction-log-file.c
index e1ed74d1db..2353ef4172 100644
--- a/src/lib-index/mail-transaction-log-file.c
+++ b/src/lib-index/mail-transaction-log-file.c
@@ -1664,6 +1664,14 @@ log_file_map_check_offsets(struct mail_transaction_log_file *file,
 
 	if (start_offset > file->sync_offset) {
 		/* broken start offset */
+		if (MAIL_TRANSACTION_LOG_FILE_IN_MEMORY(file)) {
+			*reason_r = t_strdup_printf(
+				"%s: start_offset (%"PRIuUOFF_T") > "
+				"current sync_offset (%"PRIuUOFF_T")",
+				file->filepath, start_offset, file->sync_offset);
+			return FALSE;
+		}
+
 		if (fstat(file->fd, &st) < 0) {
 			log_file_set_syscall_error(file, "fstat()");
 			st.st_size = -1;