ons 2019-09-18 klockan 02:03 +0200 skrev Andreas Rheinhardt:
> The pointer arguments to memcpy (and several other functions of the
> C standard library) are not allowed to be NULL, not even when the number
> of bytes to copy is zero. An AVEncryptionInitInfo's data pointer is
> explicitly allowed to be NULL and yet av_encryption_init_info_add_side_data
> unconditionally used it as a source pointer to copy from. This commit changes
> this so that copying is only done if the number of bytes to copy is > 0.
*gesticulates wildly with a formal verification stick*
> - memcpy(cur_buffer, cur_info->data, cur_info->data_size);
> - cur_buffer += cur_info->data_size;
> + if (cur_info->data_size > 0) {
> + memcpy(cur_buffer, cur_info->data, cur_info->data_size);
> + cur_buffer += cur_info->data_size;
> + }
Approve
There's no doubt more of these
/Tomas
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