diracdec: check if reference could not be allocated
s->ref_pics[i] is later used as ref argument of interpolate_refplane,
where it is dereferenced.
If it is NULL, it causes a segmentation fault.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d93181ef3eacdb862d93448f31c97765a523d1db)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c
index c9c43fd..679fbcf 100644
--- a/libavcodec/diracdec.c
+++ b/libavcodec/diracdec.c
@@ -1745,6 +1745,12 @@
get_buffer_with_edge(s->avctx, s->ref_pics[i]->avframe, AV_GET_BUFFER_FLAG_REF);
break;
}
+
+ if (!s->ref_pics[i]) {
+ av_log(s->avctx, AV_LOG_ERROR, "Reference could not be allocated\n");
+ return -1;
+ }
+
}
/* retire the reference frames that are not used anymore */
