ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Mon Jul 2 19:08:54 2018 +0200| [70832333bba3b915040f415548518e136b44280e] | committer: Michael Niedermayer
avcodec/shorten: Fix undefined integer overflow Fixes: signed integer overflow: 8454144 * 256 cannot be represented in type 'int' Fixes: 8788/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SHORTEN_fuzzer-5728205041303552 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=70832333bba3b915040f415548518e136b44280e --- libavcodec/shorten.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c index 18a12d0b97..79656e7757 100644 --- a/libavcodec/shorten.c +++ b/libavcodec/shorten.c @@ -177,7 +177,7 @@ static void fix_bitshift(ShortenContext *s, int32_t *buffer) buffer[i] = 0; } else if (s->bitshift != 0) { for (i = 0; i < s->blocksize; i++) - buffer[i] *= 1 << s->bitshift; + buffer[i] *= 1U << s->bitshift; } } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
