Too much code relies in having init_get_bits fed with a valid
buffer and set its dimension to 0.
Check for NULL buffer instead.
---
Fixes partially the problems shown by the sample in bug #430.
libavcodec/get_bits.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/get_bits.h b/libavcodec/get_bits.h
index 12770a2..ffa0656 100644
--- a/libavcodec/get_bits.h
+++ b/libavcodec/get_bits.h
@@ -375,7 +375,7 @@ static inline int init_get_bits(GetBitContext *s, const
uint8_t *buffer,
int buffer_size;
int ret = 0;
- if (bit_size > INT_MAX - 7 || bit_size <= 0) {
+ if (bit_size > INT_MAX - 7 || bit_size < 0 || !buffer) {
buffer_size = bit_size = 0;
buffer = NULL;
ret = AVERROR_INVALIDDATA;
--
1.8.0.2
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