Fixes: out of array read
Fixes: SIGSEGV_get_obu_bit_length_av1_parse
Found-by: keval shah <skeva...@gmail.com>
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/av1_parse.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavcodec/av1_parse.h b/libavcodec/av1_parse.h
index 276af33ba9..312d8825e1 100644
--- a/libavcodec/av1_parse.h
+++ b/libavcodec/av1_parse.h
@@ -130,6 +130,9 @@ static inline int parse_obu_header(const uint8_t *buf, int
buf_size,
if (get_bits_left(&gb) < 0)
return AVERROR_INVALIDDATA;
+ if (*obu_size > (uint64_t)buf_size - get_bits_count(&gb) / 8)
+ return AVERROR_INVALIDDATA;
+
*start_pos = get_bits_count(&gb) / 8;
size = *obu_size + *start_pos;
--
2.19.1
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