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fixed bug #37705 Possible memory corruption in DNS query
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@ -573,7 +573,7 @@ dns_send(u8_t numdns, const char* name, u8_t id)
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LWIP_ASSERT("dns server has no IP address set", !ip_addr_isany(&dns_servers[numdns]));
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LWIP_ASSERT("dns server has no IP address set", !ip_addr_isany(&dns_servers[numdns]));
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/* if here, we have either a new query or a retry on a previous query to process */
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/* if here, we have either a new query or a retry on a previous query to process */
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p = pbuf_alloc(PBUF_TRANSPORT, SIZEOF_DNS_HDR + DNS_MAX_NAME_LENGTH +
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p = pbuf_alloc(PBUF_TRANSPORT, SIZEOF_DNS_HDR + DNS_MAX_NAME_LENGTH + 1 +
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SIZEOF_DNS_QUERY, PBUF_RAM);
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SIZEOF_DNS_QUERY, PBUF_RAM);
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if (p != NULL) {
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if (p != NULL) {
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u16_t realloc_size;
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u16_t realloc_size;
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