ffmpeg | branch: release/4.4 | Michael Niedermayer <[email protected]> | Sat Mar 20 17:02:36 2021 +0100| [039ecef275dae2fd459155be9700b98a8c69f932] | committer: Michael Niedermayer
avcodec/h264_slice: Check sps in h264_slice_header_init() Fixes: null pointer dereference Fixes: h264_slice_header_init.mp4 Found-by: Rafael Dutra <[email protected]> Tested-by: Rafael Dutra <[email protected]> Signed-off-by: Michael Niedermayer <[email protected]> (cherry picked from commit 80472438996ed1928b30f6ac4e0d17a492de2cdf) Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=039ecef275dae2fd459155be9700b98a8c69f932 --- libavcodec/h264_slice.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 14b945756b..84b5710ab4 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -922,6 +922,11 @@ 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); _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
