From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Wed, 8 Oct 2025 13:04:54 +0000 (+0300)
Subject: lib: istream - Add assert to make sure skip/pos state is valid after istream.read()
X-Git-Tag: 2.4.2~104
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=103b0e20fba725c901b8f254d5fcd28c4be72979;p=thirdparty%2Fdovecot%2Fcore.git

lib: istream - Add assert to make sure skip/pos state is valid after istream.read()
---

diff --git a/src/lib/istream.c b/src/lib/istream.c
index b13f3f43ae..d3881a3ea0 100644
--- a/src/lib/istream.c
+++ b/src/lib/istream.c
@@ -369,6 +369,7 @@ ssize_t i_stream_read_memarea(struct istream *stream)
 		_stream->io_pending_until_read = FALSE;
 		ret = _stream->read(_stream);
 	}
+	i_assert(_stream->skip <= _stream->pos);
 	i_assert(old_size <= _stream->pos - _stream->skip);
 	switch (ret) {
 	case -2: