avcodec/vb: Check for end of bytestream before reading blocktype
authorMichael Niedermayer <michael@niedermayer.cc>
Mon, 20 Aug 2018 20:19:23 +0000 (22:19 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Sun, 18 Nov 2018 01:20:44 +0000 (02:20 +0100)
commit2df51ffcb7f2f1ee14715e28793ef549b0a7f565
treef683e6c4608ee19fb1924638c873a8a104955c42
parentc6b7060137cfdf5536df95bb8e58bd30acc90b89
avcodec/vb: Check for end of bytestream before reading blocktype

Fixes: Timeout
Fixes: 9601/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VB_fuzzer-4550228702134272

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1cbac9ce20d32806febf64cbd9f830e1485695ca)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/vb.c