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Do not allow arbitrary packet size in aac decoder. 

Fixes a crash with a file containing a 400MB packet reported in bug 420.
This commit is contained in:
Carl Eugen Hoyos 2013-01-10 13:00:19 +01:00
parent ac6e074fb7
commit b563afe6fa
1 changed files with 3 additions and 0 deletions
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3
libavcodec/aacdec.c
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@ -2665,6 +2665,9 @@ static int aac_decode_frame(AVCodecContext *avctx, void *data,
if (ac->force_dmono_mode >= 0)
ac->dmono_mode = ac->force_dmono_mode;
if (INT_MAX / 8 <= buf_size)
return AVERROR_INVALIDDATA;
init_get_bits(&gb, buf, buf_size * 8);
if ((err = aac_decode_frame_int(avctx, data, got_frame_ptr, &gb, avpkt)) < 0)