diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-07-10 00:04:02 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-04 20:26:35 +0200 |
| commit | c99cb72d279cd77fc64d412cf05c906852e229db (patch) | |
| tree | d4126b59a5b8213ecdd4738f8e52c072d90e02e2 | |
| parent | 611eb9594376433683282d86c4c00d3dfb572366 (diff) | |
| download | ffmpeg-c99cb72d279cd77fc64d412cf05c906852e229db.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 28765c768d..6e086e00df 100644 --- a/libavcodec/aacdec_template.c +++ b/libavcodec/aacdec_template.c @@ -2659,7 +2659,7 @@ 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 */ } |