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Bugfix: Reject invalid coinbaseaux data

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This commit is contained in:
Luke Dashjr
2016-07-26 03:42:38 +00:00
parent 5d14babebc
commit 2eb326525d
1 changed files with 4 additions and 2 deletions
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6
blkmaker_jansson.c
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@@ -229,7 +229,7 @@ const char *blktmpl_add_jansson(blktemplate_t *tmpl, const json_t *json, time_t
if ((v = json_object_get(json, "coinbaseaux")) && json_is_object(v))
{
tmpl->aux_count = json_object_size(v);
tmpl->auxs = malloc(tmpl->aux_count * sizeof(*tmpl->auxs));
tmpl->auxs = calloc(tmpl->aux_count, sizeof(*tmpl->auxs));
unsigned i = 0;
for (void *iter = json_object_iter(v); iter; (iter = json_object_iter_next(v, iter)), ++i)
{
@@ -243,7 +243,9 @@ const char *blktmpl_add_jansson(blktemplate_t *tmpl, const json_t *json, time_t
.data = malloc(sz),
.datasz = sz,
};
my_hex2bin(tmpl->auxs[i].data, s, sz);
if (!my_hex2bin(tmpl->auxs[i].data, s, sz)) {
return "Error decoding 'coinbaseaux' data";
}
}
}