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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-10 00:04:02 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-02 19:41:49 +0100 |
| commit | 3ee68a677d67981b82040d4f57771cfc4b334b88 (patch) | |
| tree | 375a1a0fc60f150ba0cbec8fee9d5ff9f6a85e61 | |
| parent | a1233d39c62bb90ea40120685d049e6afa52d700 (diff) | |
| download | ffmpeg-3ee68a677d67981b82040d4f57771cfc4b334b88.tar.gz | |
avcodec/aacdec_template: fix integer overflow in imdct_and_windowing()
Fixes: signed integer overflow: 2147483645 + 4 cannot be represented in type 'int'
Fixes: 15418/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5685269069561856
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit da93e2b14218c4ab0fda60e21882a4633aac5748)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/aacdec_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/aacdec_template.c b/libavcodec/aacdec_template.c index 1e7afcc17b..6000fd890f 100644 --- a/libavcodec/aacdec_template.c +++ b/libavcodec/aacdec_template.c @@ -2551,7 +2551,7 @@ static void imdct_and_windowing(AACContext *ac, SingleChannelElement *sce) ac->mdct.imdct_half(&ac->mdct, buf, in); #if USE_FIXED for (i=0; i<1024; i++) - buf[i] = (buf[i] + 4) >> 3; + buf[i] = (buf[i] + 4LL) >> 3; #endif /* USE_FIXED */ } |