diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-17 20:32:03 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-20 02:59:57 +0200 |
| commit | d132683ddd4050d3fe103ca88c73258c3442dc34 (patch) | |
| tree | 21b95b280b21015e51b4b80611155d8807696cab /libavcodec/snowdec.c | |
| parent | 43dab86bcd863739ce51a2742c9f4f5527b5ec7c (diff) | |
| download | ffmpeg-d132683ddd4050d3fe103ca88c73258c3442dc34.tar.gz | |
avcodec/snowdec: Fix off by 1 error
Fixes: runtime error: index 4 out of bounds for type 'int8_t [4]'
Fixes: 3023/clusterfuzz-testcase-minimized-6421736130084864
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/snowdec.c')
| -rw-r--r-- | libavcodec/snowdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/snowdec.c b/libavcodec/snowdec.c index c80901b754..734f43e7d1 100644 --- a/libavcodec/snowdec.c +++ b/libavcodec/snowdec.c @@ -355,7 +355,7 @@ static int decode_header(SnowContext *s){ Plane *p= &s->plane[plane_index]; p->diag_mc= get_rac(&s->c, s->header_state); htaps= get_symbol(&s->c, s->header_state, 0)*2 + 2; - if((unsigned)htaps > HTAPS_MAX || htaps==0) + if((unsigned)htaps >= HTAPS_MAX || htaps==0) return AVERROR_INVALIDDATA; p->htaps= htaps; for(i= htaps/2; i; i--){ |