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Code Issues Releases Activity

avcodec/wmalosslessdec: shrink output on error so no uninitialized data is returned

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Fixes use of uninitialized memory
partly fixes: msan_uninit-mem_7f7834b6a530_6473_luckynight-partial.wma
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-01-11 02:04:01 +01:00
parent ae3856dcaf
commit 6b18a6839b
1 changed files with 3 additions and 0 deletions
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3
libavcodec/wmalosslessdec.c
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@ -1076,8 +1076,11 @@ static int decode_frame(WmallDecodeCtx *s)
/* decode all subframes */ /* decode all subframes */
while (!s->parsed_all_subframes) { while (!s->parsed_all_subframes) {
int decoded_samples = s->channel[0].decoded_samples;
if (decode_subframe(s) < 0) { if (decode_subframe(s) < 0) {
s->packet_loss = 1; s->packet_loss = 1;
if (s->frame->nb_samples)
s->frame->nb_samples = decoded_samples;
return 0; return 0;
} }
} }