ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Dec 8 13:48:45 2019 +0100| [fd313d8cf8368918882b6de0880e44ae25cc7394] | committer: Michael Niedermayer
avcodec/ralf: Fix integer overflow in apply_lpc() Fixes: signed integer overflow: 2147482897 + 2048 cannot be represented in type 'int' Fixes: 19240/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5743240326414336 Fixes: 19869/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5150136636538880 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=fd313d8cf8368918882b6de0880e44ae25cc7394 --- libavcodec/ralf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/ralf.c b/libavcodec/ralf.c index 5d88b4c943..831728177e 100644 --- a/libavcodec/ralf.c +++ b/libavcodec/ralf.c @@ -330,7 +330,7 @@ static void apply_lpc(RALFContext *ctx, int ch, int length, int bits) acc = (acc + bias - 1) >> ctx->filter_bits; acc = FFMAX(acc, min_clip); } else { - acc = (acc + bias) >> ctx->filter_bits; + acc = ((unsigned)acc + bias) >> ctx->filter_bits; acc = FFMIN(acc, max_clip); } audio[i] += acc; _______________________________________________ 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".
