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mysql_set_local_infile_handler

API Overview​

mysql_set_local_infile_handler is an API in libmysql. This rule belongs to the api pair type. This rule is generated using ChatDetector.

Rule Description​

tip

Parameter 1 of mysql_set_local_infile_handler must be released by calling mysql_reset_connection, with the same object passed as the 1-th argument to mysql_reset_connection

info
  • Tags: api pair
  • Parameter Index: 0
  • CWE Type: CWE-404

Rule Code​

import cpp
import semmle.code.cpp.dataflow.new.DataFlow


DataFlow::Node getSource(FunctionCall fc){
  fc.getTarget().hasName("mysql_set_local_infile_handler")
  and result.asExpr() = fc.getArgument(0)
}

DataFlow::Node getSink(FunctionCall fc){
  fc.getTarget().hasName("mysql_reset_connection")
  and result.asExpr() = fc.getArgument(0)
}

FunctionCall freeTarget(FunctionCall malloc){
  DataFlow::localFlow(getSource(malloc), getSink(result))
}

from FunctionCall fc
where fc.getTarget().hasName("mysql_set_local_infile_handler")
      and not exists(
        FunctionCall free| 
        free = freeTarget(fc)
      )
select fc.getLocation()