From: Timo Sirainen <tss@iki.fi>
Date: Wed, 21 Aug 2013 16:40:54 +0000 (+0300)
Subject: imap: Fixed potential assert crash in APPEND.
X-Git-Tag: 2.2.6~127
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=96581b055307a30ffde0e272902c161e4ca96c40;p=thirdparty%2Fdovecot%2Fcore.git

imap: Fixed potential assert crash in APPEND.
---

diff --git a/src/imap/cmd-append.c b/src/imap/cmd-append.c
index 70d2c7a91e..791151055d 100644
--- a/src/imap/cmd-append.c
+++ b/src/imap/cmd-append.c
@@ -829,7 +829,9 @@ static bool cmd_append_continue_message(struct client_command_context *cmd)
 		/* finished - do one more read, to make sure istream-chain
 		   unreferences its stream, which is needed for litinput's
 		   unreferencing to seek the client->input to correct
-		   position */
+		   position. the seek is needed to avoid trying to seek
+		   backwards in the ctx->input's parent stream. */
+		i_stream_seek(ctx->input, ctx->input->v_offset);
 		(void)i_stream_read(ctx->input);
 		i_stream_unref(&ctx->litinput);