From e146ad95d79b1a6e6b9e566366b832825c79679f Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 29 Dec 2011 21:26:30 +0100 Subject: [PATCH] mlp_parser: Fix infinite loop with 0 bytes_left. Signed-off-by: Michael Niedermayer --- libavcodec/mlp_parser.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/mlp_parser.c b/libavcodec/mlp_parser.c index 4ceea5e9e1..f31e2d5727 100644 --- a/libavcodec/mlp_parser.c +++ b/libavcodec/mlp_parser.c @@ -263,6 +263,9 @@ static int mlp_parse(AVCodecParserContext *s, mp->bytes_left = ((mp->pc.index > 0 ? mp->pc.buffer[0] : buf[0]) << 8) | (mp->pc.index > 1 ? mp->pc.buffer[1] : buf[1-mp->pc.index]); mp->bytes_left = (mp->bytes_left & 0xfff) * 2; + if (mp->bytes_left <= 0) { // prevent infinite loop + goto lost_sync; + } mp->bytes_left -= mp->pc.index; }