From dd1a74d25decd6eaa7c78a7062fa12edb043efaf Mon Sep 17 00:00:00 2001 From: "jwestfall@surrealistic.net" Date: Sat, 14 Jan 2006 17:43:22 +0000 Subject: [PATCH] Off by one fix to prevent possible segfault. Patch by jwestfall at surrealistic dot net. Originally committed as revision 4857 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/mpeg12.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c index 514ff29318..c582ad7a0d 100644 --- a/libavcodec/mpeg12.c +++ b/libavcodec/mpeg12.c @@ -2178,7 +2178,7 @@ static int find_start_code(const uint8_t **pbuf_ptr, const uint8_t *buf_end) const uint8_t *buf_ptr= *pbuf_ptr; buf_ptr++; //gurantees that -1 is within the array - buf_end -= 2; // gurantees that +2 is within the array + buf_end -= 3; // gurantees that +3 is within the array while (buf_ptr < buf_end) { if(*buf_ptr==0){ @@ -2192,7 +2192,7 @@ static int find_start_code(const uint8_t **pbuf_ptr, const uint8_t *buf_end) } buf_ptr += 2; } - buf_end += 2; //undo the hack above + buf_end += 3; //undo the hack above *pbuf_ptr = buf_end; return -1;