avcodec/dfa: Check dimension against maximum
authorMichael Niedermayer <michael@niedermayer.cc>
Mon, 16 Apr 2018 20:04:53 +0000 (22:04 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Sun, 17 Jun 2018 23:16:03 +0000 (01:16 +0200)
commit86c7035646d581a3cf20d7ce8662fae1ea3f3c5c
tree335f1e6574fdc30367aa534b2bb1b3a544cf04c7
parenta6db663a31cea5e358b3c38cd3a40f22166b1c43
avcodec/dfa: Check dimension against maximum

The headers from where the dimensions are read in actual files
are limited to 16bit per component.

Fixes: Timeout
Fixes: 6305/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DFA_fuzzer-4824270749302784

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 9d5a4fcfbb51edc871bdb1c67a88223cbfb1c0e4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/dfa.c