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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-11-05 23:20:08 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-09 01:19:14 +0300 |
| commit | 4654cc8cee07b7772239eec7d263d6cd9c6a4f0d (patch) | |
| tree | 0a9eb916b55bfca51140edf699ef6036b642f800 | |
| parent | 1fc3ebbcd91309684a490178f9f1b870babdb078 (diff) | |
avcodec/aacpsdsp_template: Fix integer overflows in ps_decorrelate_c()
Fixes: runtime error: signed integer overflow: 1939661764 - -454942263 cannot be represented in type 'int'
Fixes: 3191/clusterfuzz-testcase-minimized-5688798451073024
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 2afe05402f05d485f0c356b04dc562f0510d317d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/aacpsdsp_template.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/aacpsdsp_template.c b/libavcodec/aacpsdsp_template.c index 3049ce8b79..0e532fcf84 100644 --- a/libavcodec/aacpsdsp_template.c +++ b/libavcodec/aacpsdsp_template.c @@ -129,12 +129,12 @@ static void ps_decorrelate_c(INTFLOAT (*out)[2], INTFLOAT (*delay)[2], INTFLOAT apd_im = in_im; in_re = AAC_MSUB30(link_delay_re, fractional_delay_re, link_delay_im, fractional_delay_im); - in_re -= a_re; + in_re -= (UINTFLOAT)a_re; in_im = AAC_MADD30(link_delay_re, fractional_delay_im, link_delay_im, fractional_delay_re); - in_im -= a_im; - ap_delay[m][n+5][0] = apd_re + AAC_MUL31(ag[m], in_re); - ap_delay[m][n+5][1] = apd_im + AAC_MUL31(ag[m], in_im); + in_im -= (UINTFLOAT)a_im; + ap_delay[m][n+5][0] = apd_re + (UINTFLOAT)AAC_MUL31(ag[m], in_re); + ap_delay[m][n+5][1] = apd_im + (UINTFLOAT)AAC_MUL31(ag[m], in_im); } out[n][0] = AAC_MUL16(transient_gain[n], in_re); out[n][1] = AAC_MUL16(transient_gain[n], in_im); |