ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Tue Oct 29 18:30:07 2019 +0100| [dc3f327e7403a34c88a900f0b8de55b4afd7cf6c] | committer: Michael Niedermayer
avcodec/apedec: Fixes integer overflow of res+*data in do_apply_filter() Fixes: signed integer overflow: 7400 + 2147482786 cannot be represented in type 'int' Fixes: 18405/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5708834760294400 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dc3f327e7403a34c88a900f0b8de55b4afd7cf6c --- libavcodec/apedec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index cfcf9a06c1..2b5bd759f5 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -1272,7 +1272,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f, f->adaptcoeffs - order, order, APESIGN(*data)); res = (int)(res + (1U << (fracbits - 1))) >> fracbits; - res += *data; + res += (unsigned)*data; *data++ = res; /* Update the output history */ _______________________________________________ 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".
