ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Tue Jun 5 13:15:34 2018 +0200| [606c7148231404544005c0827b83c165dd6b39a8] | committer: Michael Niedermayer
avcodec/shorten: Fix undefined shift in fix_bitshift() Fixes: left shift of negative value -9 Fixes: 8571/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SHORTEN_fuzzer-5715966875926528 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=606c7148231404544005c0827b83c165dd6b39a8 --- libavcodec/shorten.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c index f7475b4954..0bd3e1e5f7 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] <<= s->bitshift; + buffer[i] *= 1 << s->bitshift; } } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
