[FFmpeg-devel] [PATCH 1/3] avformat/mpegts: add missing null pointer checks in ff_parse_mpeg2_descriptor()
Michael Niedermayer
michael at niedermayer.cc
Thu Aug 16 16:36:27 EEST 2018
Fixes: null pointer dereference
Fixes: wtv-crash-75fa58662ded1c1d349f3d1df89394fd690cf92f
Found-by: Paul Ch <paulcher at icloud.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
libavformat/mpegts.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index a5cb17ac16..edf6b5701d 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1983,7 +1983,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
int service_type = ((component_type & service_type_mask) >> 3);
if (service_type == 0x02 /* 0b010 */) {
st->disposition |= AV_DISPOSITION_DESCRIPTIONS;
- av_log(ts->stream, AV_LOG_DEBUG, "New track disposition for id %u: %u\n", st->id, st->disposition);
+ av_log(ts ? ts->stream : fc, AV_LOG_DEBUG, "New track disposition for id %u: %u\n", st->id, st->disposition);
}
}
}
@@ -1997,7 +1997,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
int service_type = ((component_type & service_type_mask) >> 3);
if (service_type == 0x02 /* 0b010 */) {
st->disposition |= AV_DISPOSITION_DESCRIPTIONS;
- av_log(ts->stream, AV_LOG_DEBUG, "New track disposition for id %u: %u\n", st->id, st->disposition);
+ av_log(ts ? ts->stream : fc, AV_LOG_DEBUG, "New track disposition for id %u: %u\n", st->id, st->disposition);
}
}
}
--
2.18.0
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