[FFmpeg-cvslog] avcodec/av1_parse: Check obu_size

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Oct 14 12:40:38 2018 +0200| [c27c7b49dc00a955779ad4b6801a993da5a962de] | committer: Michael Niedermayer

avcodec/av1_parse: Check obu_size

Fixes: out of array read
Fixes: SIGSEGV_get_obu_bit_length_av1_parse

Found-by: keval shah <skeval65 at gmail.com>
Reviewed-by: James Almer <jamrial at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c27c7b49dc00a955779ad4b6801a993da5a962de
---

 libavcodec/av1_parse.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/av1_parse.h b/libavcodec/av1_parse.h
index 276af33ba9..864308f81d 100644
--- a/libavcodec/av1_parse.h
+++ b/libavcodec/av1_parse.h
@@ -134,8 +134,8 @@ static inline int parse_obu_header(const uint8_t *buf, int buf_size,
 
     size = *obu_size + *start_pos;
 
-    if (size > INT_MAX)
-        return AVERROR(ERANGE);
+    if (size > buf_size)
+        return AVERROR_INVALIDDATA;
 
     return size;
 }