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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-11 22:47:31 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-11 23:02:38 +0300 |
| commit | 5859b5b4394d3a0d654b6e821c2ba5e1e7842244 (patch) | |
| tree | 622acf171ee0876a8237a854324b69353e4215c7 /libavcodec/lagarithrac.c | |
| parent | 0561bd2fc2bff0dbe651d5998e9f129c43d25eb3 (diff) | |
avcodec/lagarith: Detect end of input in lag_decode_line() loop
Fixes: timeout
Fixes: 2933/clusterfuzz-testcase-5124990208835584
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/lagarithrac.c')
| -rw-r--r-- | libavcodec/lagarithrac.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/lagarithrac.c b/libavcodec/lagarithrac.c index 3d36d1b9e9..cdda67fb81 100644 --- a/libavcodec/lagarithrac.c +++ b/libavcodec/lagarithrac.c @@ -46,6 +46,7 @@ void ff_lag_rac_init(lag_rac *l, GetBitContext *gb, int length) l->range = 0x80; l->low = *l->bytestream >> 1; l->hash_shift = FFMAX(l->scale, 10) - 10; + l->overread = 0; for (i = j = 0; i < 1024; i++) { unsigned r = i << l->hash_shift; |