ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Thu May 25 23:40:16 2023 +0200| [0ecd301a861c35ff739e995bf3ef0ab7227c7e9f] | committer: Michael Niedermayer
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 <mich...@niedermayer.cc> (cherry picked from commit ff8a496d41422b694f66684ada97dcf49e167782) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0ecd301a861c35ff739e995bf3ef0ab7227c7e9f --- libavcodec/takdsp.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/libavcodec/takdsp.c b/libavcodec/takdsp.c index a8f9dba342..f5dc47988f 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; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
