From: Michael Niedermayer <[email protected]>

Fixes null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <[email protected]>

Conflicts:

        libavcodec/j2kdec.c
---
 libavcodec/jpeg2000dec.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index a8dae3e..4ef0e8b 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -1180,6 +1180,8 @@ static int 
jpeg2000_read_main_headers(Jpeg2000DecoderContext *s)
         switch (marker) {
         case JPEG2000_SIZ:
             ret = get_siz(s);
+            if (!s->tile)
+                s->numXtiles = s->numYtiles = 0;
             break;
         case JPEG2000_COC:
             ret = get_coc(s, codsty, properties);
-- 
1.7.9.5

_______________________________________________
libav-devel mailing list
[email protected]
https://lists.libav.org/mailman/listinfo/libav-devel

Reply via email to