ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Mon Sep 2 22:44:50 2019 +0200| [9d3ddef519e88c40c05be8cb94cd9e71c0957ec7] | committer: Michael Niedermayer
avcodec/apedec: Fix 32bit int overflow in do_apply_filter() Fixes: signed integer overflow: 2147480546 + 4096 cannot be represented in type 'int' Fixes: 16280/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5123442566758400 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Tomas Härdin <tjop...@acc.umu.se> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9d3ddef519e88c40c05be8cb94cd9e71c0957ec7 --- libavcodec/apedec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 490b11b94e..ed22f0f019 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -1266,7 +1266,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f, f->delay - order, f->adaptcoeffs - order, order, APESIGN(*data)); - res = (res + (1 << (fracbits - 1))) >> fracbits; + res = (int)(res + (1U << (fracbits - 1))) >> fracbits; res += *data; *data++ = res; _______________________________________________ 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".
