1. ffmpeg
  2. Commit 2f07937926e52e328ade0aeb40f61d994b41ed9d
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libavcodec/wmalosslessdec: Check the remaining bits

Fixes assertion failure
Fixes: 24ebfda03228b5cc1ef792608cfba458/signal_sigabrt_7ffff6ae7c37_6473_3fa8a111dbc752b1a7c411c5ab79aaa4.wma

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 67318187fbba382d887f9581dde48a50842f1bea)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Michael Niedermayer authored on 2016/08/22 03:30:34
Showing 1 changed files
libavcodec/wmalosslessdec.c
History View file @ 2f07937
... ... 
@@ -1271,6 +1271,11 @@ static int decode_packet(AVCodecContext *avctx, void *data, int *got_frame_ptr,
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         }
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     }
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+    if (remaining_bits(s, gb) < 0) {
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+        av_log(avctx, AV_LOG_ERROR, "Overread %d\n", -remaining_bits(s, gb));
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+        s->packet_loss = 1;
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+    }
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+
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     if (s->packet_done && !s->packet_loss &&
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         remaining_bits(s, gb) > 0) {
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         /* save the rest of the data so that it can be decoded