Fixes: null pointer dereference
Fixes: h264_slice_header_init.mp4
Found-by: Rafael Dutra <rafael.du...@cispa.de>
Tested-by: Rafael Dutra <rafael.du...@cispa.de>
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/h264_slice.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c
index 910d8b8848..62f7a61aed 100644
--- a/libavcodec/h264_slice.c
+++ b/libavcodec/h264_slice.c
@@ -921,6 +921,11 @@ static int h264_slice_header_init(H264Context *h)
const SPS *sps = h->ps.sps;
int i, ret;
+ if (!sps) {
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
ff_set_sar(h->avctx, sps->sar);
av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
&h->chroma_x_shift, &h->chroma_y_shift);
--
2.17.1
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