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lavu/opt: check int lists length for overflow.

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Also add parens on macro arguments.
This commit is contained in:
Nicolas George 2013-04-13 11:46:56 +02:00
parent 2a1d7ea5f8
commit 9e8e03de38
1 changed files with 4 additions and 2 deletions
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6
libavutil/opt.h
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@ -668,8 +668,10 @@ int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int searc
* @param flags search flags
*/
#define av_opt_set_int_list(obj, name, val, term, flags) \
av_opt_set_bin(obj, name, (const uint8_t *)val, \
av_int_list_length(val, term) * sizeof(*val), flags)
(av_int_list_length(val, term) > INT_MAX / sizeof(*(val)) ? \
AVERROR(EINVAL) : \
av_opt_set_bin(obj, name, (const uint8_t *)(val), \
av_int_list_length(val, term) * sizeof(*(val)), flags))
/**
* @}
*/