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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-25 23:40:16 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-06-18 14:29:12 +0200 |
| commit | ff8a496d41422b694f66684ada97dcf49e167782 (patch) | |
| tree | cd0b7dc8643613313774272e064da50202e8a920 /libavcodec | |
| parent | adfe003f518dac098ba9cdabcd6158fa55383710 (diff) | |
| download | ffmpeg-ff8a496d41422b694f66684ada97dcf49e167782.tar.gz | |
avcodec/takdsp: Fix integer overflows
Fixes: avcodec/takdsp.c:44:23: runtime error: signed integer overflow: -2097158 - 2147012608 cannot be represented in type 'int'
Fixes: 58417/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5268919664640000
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/takdsp.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/libavcodec/takdsp.c b/libavcodec/takdsp.c index 881d7be5f2..b646a063db 100644 --- a/libavcodec/takdsp.c +++ b/libavcodec/takdsp.c @@ -28,8 +28,8 @@ static void decorrelate_ls(int32_t *p1, int32_t *p2, int length) int i; for (i = 0; i < length; i++) { - int32_t a = p1[i]; - int32_t b = p2[i]; + uint32_t a = p1[i]; + uint32_t b = p2[i]; p2[i] = a + b; } } @@ -39,8 +39,8 @@ static void decorrelate_sr(int32_t *p1, int32_t *p2, int length) int i; for (i = 0; i < length; i++) { - int32_t a = p1[i]; - int32_t b = p2[i]; + uint32_t a = p1[i]; + uint32_t b = p2[i]; p1[i] = b - a; } } @@ -50,7 +50,7 @@ static void decorrelate_sm(int32_t *p1, int32_t *p2, int length) int i; for (i = 0; i < length; i++) { - int32_t a = p1[i]; + uint32_t a = p1[i]; int32_t b = p2[i]; a -= b >> 1; p1[i] = a; @@ -63,7 +63,7 @@ static void decorrelate_sf(int32_t *p1, int32_t *p2, int length, int dshift, int int i; for (i = 0; i < length; i++) { - int32_t a = p1[i]; + uint32_t a = p1[i]; int32_t b = p2[i]; b = (unsigned)((int)(dfactor * (unsigned)(b >> dshift) + 128) >> 8) << dshift; p1[i] = b - a; |