ffmpeg | branch: release/5.0 | Michael Niedermayer <mich...@niedermayer.cc> | Tue Feb 8 00:43:56 2022 +0100| [af2913d46f47067f7ddae926433b842b738e7972] | committer: Michael Niedermayer
avcodec/sonic: Use unsigned for predictor_k to avoid undefined behavior Fixes: signed integer overflow: -1094995529 * 24 cannot be represented in type 'int' Fixes: 44436/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SONIC_fuzzer-4874459459223552 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 28008bf95ed9b2ab5945ae6658358ad7c7f1df35) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=af2913d46f47067f7ddae926433b842b738e7972 --- libavcodec/sonic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/sonic.c b/libavcodec/sonic.c index 63a613f77d..b4935e7ea2 100644 --- a/libavcodec/sonic.c +++ b/libavcodec/sonic.c @@ -1003,7 +1003,7 @@ static int sonic_decode_frame(AVCodecContext *avctx, // dequantize for (i = 0; i < s->num_taps; i++) - s->predictor_k[i] *= s->tap_quant[i]; + s->predictor_k[i] *= (unsigned) s->tap_quant[i]; if (s->lossless) quant = 1; _______________________________________________ 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".
