Fixes: 4427/clusterfuzz-testcase-minimized-5106919271301120
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/j2kenc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/j2kenc.c b/libavcodec/j2kenc.c
index 32c7fddb74..78ec88a694 100644
--- a/libavcodec/j2kenc.c
+++ b/libavcodec/j2kenc.c
@@ -690,7 +690,8 @@ static void encode_cblk(Jpeg2000EncoderContext *s,
Jpeg2000T1Context *t1, Jpeg20
cblk->npasses = passno;
cblk->ninclpasses = passno;
- cblk->passes[passno-1].rate = ff_mqc_flush_to(&t1->mqc,
cblk->passes[passno-1].flushed, &cblk->passes[passno-1].flushed_len);
+ if (passno)
+ cblk->passes[passno-1].rate = ff_mqc_flush_to(&t1->mqc,
cblk->passes[passno-1].flushed, &cblk->passes[passno-1].flushed_len);
}
/* tier-2 routines: */
--
2.15.0
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