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nftnlrdr_misc.c: malloc/memcpy instead of strndup() 

see #466
This commit is contained in:
Thomas Bernard 2020-06-01 17:34:50 +02:00
parent 3b20182c86
commit c3d71b97ab
1 changed files with 9 additions and 2 deletions
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11
miniupnpd/netfilter_nft/nftnlrdr_misc.c
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@ -514,8 +514,15 @@ table_cb(const struct nlmsghdr *nlh, void *data)
char *descr; char *descr;
descr = (char *) nftnl_rule_get_data(rule, NFTNL_RULE_USERDATA, descr = (char *) nftnl_rule_get_data(rule, NFTNL_RULE_USERDATA,
&r->desc_len); &r->desc_len);
if (r->desc_len > 0) if (r->desc_len > 0) {
r->desc = strndup(descr, r->desc_len); r->desc = malloc(r->desc_len + 1);
if (r->desc != NULL) {
memcpy(r->desc, descr, r->desc_len);
r->desc[r->desc_len + 1] = '\0';
} else {
syslog(LOG_ERR, "failed to allocate %u bytes for desc", r->desc_len);
}
}
} }
r->handle = *(uint32_t *) nftnl_rule_get_data(rule, r->handle = *(uint32_t *) nftnl_rule_get_data(rule,