ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Mon Oct 21 23:22:05 2019 +0200| [aea67556116330d3151e4cd3ef1e266b5d90f388] | committer: Michael Niedermayer
avcodec/sonic: Check e in get_symbol() Fixes: signed integer overflow: 1721520852 + 1721520852 cannot be represented in type 'int' Fixes: 18346/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SONIC_fuzzer-5709623893426176 Fixes: 18753/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SONIC_fuzzer-5663299131932672 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=aea67556116330d3151e4cd3ef1e266b5d90f388 --- libavcodec/sonic.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/sonic.c b/libavcodec/sonic.c index 219412eb77..c975774b04 100644 --- a/libavcodec/sonic.c +++ b/libavcodec/sonic.c @@ -144,6 +144,8 @@ static inline av_flatten int get_symbol(RangeCoder *c, uint8_t *state, int is_si e= 0; while(get_rac(c, state+1 + FFMIN(e,9))){ //1..10 e++; + if (e > 31) + return AVERROR_INVALIDDATA; } a= 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".
