[FFmpeg-cvslog] avcodec/aacenc: Check both channels for finiteness
Michael Niedermayer
git at videolan.org
Sun Jan 31 00:43:12 CET 2016
ffmpeg | branch: release/2.7 | Michael Niedermayer <michael at niedermayer.cc> | Sat Jan 16 18:32:07 2016 +0100| [9d230f4666ac98c35a1a42b1a91e934fa563a579] | committer: Michael Niedermayer
avcodec/aacenc: Check both channels for finiteness
Fixes null pointer dereference
Fixes: 10412fc52ecc6eab40ed67f82ca7b372/signal_sigsegv_2618c99_2129_f808373959e46afb165593332799ffbc.aif
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 057549a9ccc9fd32df71678e6abe69e10668186a)
Conflicts:
libavcodec/aacenc.c
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9d230f4666ac98c35a1a42b1a91e934fa563a579
---
libavcodec/aacenc.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index 897c3a1..47fc1be 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -589,8 +589,16 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
ics->group_len[w] = wi[ch].grouping[w];
apply_window_and_mdct(s, &cpe->ch[ch], overlap);
- if (isnan(cpe->ch->coeffs[0])) {
- av_log(avctx, AV_LOG_ERROR, "Input contains NaN\n");
+
+ if (isnan(cpe->ch[ch].coeffs[ 0]) || isinf(cpe->ch[ch].coeffs[ 0]) ||
+ isnan(cpe->ch[ch].coeffs[ 128]) || isinf(cpe->ch[ch].coeffs[ 128]) ||
+ isnan(cpe->ch[ch].coeffs[2*128]) || isinf(cpe->ch[ch].coeffs[2*128]) ||
+ isnan(cpe->ch[ch].coeffs[3*128]) || isinf(cpe->ch[ch].coeffs[3*128]) ||
+ isnan(cpe->ch[ch].coeffs[4*128]) || isinf(cpe->ch[ch].coeffs[4*128]) ||
+ isnan(cpe->ch[ch].coeffs[5*128]) || isinf(cpe->ch[ch].coeffs[5*128]) ||
+ isnan(cpe->ch[ch].coeffs[6*128]) || isinf(cpe->ch[ch].coeffs[6*128]) ||
+ isnan(cpe->ch[ch].coeffs[7*128]) || isinf(cpe->ch[ch].coeffs[7*128])) {
+ av_log(avctx, AV_LOG_ERROR, "Input contains NaN/+-Inf\n");
return AVERROR(EINVAL);
}
}
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