Add a temporary fix for insufficient buffer size in mysqlnd (#9835)

kamil-tekiela · web-flow · commit e713a8e8e5ba · 2022-10-27T18:25:17.000+01:00
diff --git a/ext/mysqlnd/mysqlnd_wireprotocol.c b/ext/mysqlnd/mysqlnd_wireprotocol.c
@@ -301,6 +301,7 @@ mysqlnd_read_packet_header_and_body(MYSQLND_PACKET_HEADER * packet_header,
 	if (buf_size < packet_header->size) {
 		DBG_ERR_FMT("Packet buffer %u wasn't big enough %u, %u bytes will be unread",
 					buf_size, packet_header->size, packet_header->size - buf_size);
+		SET_CLIENT_ERROR(error_info, CR_INVALID_BUFFER_USE, UNKNOWN_SQLSTATE, "Packet buffer wasn't big enough; as a workaround consider increasing value of net_cmd_buffer_size");
 		DBG_RETURN(FAIL);
 	}
 	if (FAIL == pfc->data->m.receive(pfc, vio, buf, packet_header->size, stats, error_info)) {

Original file line number	Diff line number	Diff line change
`@@ -301,6 +301,7 @@ mysqlnd_read_packet_header_and_body(MYSQLND_PACKET_HEADER * packet_header,`
`301`	`301`	`if (buf_size < packet_header->size) {`
`302`	`302`	`DBG_ERR_FMT("Packet buffer %u wasn't big enough %u, %u bytes will be unread",`
`303`	`303`	`buf_size, packet_header->size, packet_header->size - buf_size);`
	`304`	`+ SET_CLIENT_ERROR(error_info, CR_INVALID_BUFFER_USE, UNKNOWN_SQLSTATE, "Packet buffer wasn't big enough; as a workaround consider increasing value of net_cmd_buffer_size");`
`304`	`305`	`DBG_RETURN(FAIL);`
`305`	`306`	`}`
`306`	`307`	`if (FAIL == pfc->data->m.receive(pfc, vio, buf, packet_header->size, stats, error_info)) {`