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CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
Ada

ADA.MEM.IAI : Inappropriate Array Index (Ada)

This warning class corresponds to a GNAT SAS message. The CodeSonar analysis results may include warnings of this class if your CodeSonar project includes Ada components.

Summary

An attempt to read or write to an array index that is outside the array bounds.

This warning class corresponds to the GNAT SAS Array_index_check.

Properties

Class Name Inappropriate Array Index (Ada)
Significance security
Mnemonic ADA.MEM.IAI
Categories
CWE CWE:120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  CWE:124 Buffer Underwrite ('Buffer Underflow')
  CWE:127 Buffer Under-read
  CWE:788 Access of Memory Location After End of Buffer
Availability Available for Ada only.
Enabling Checks for this warning class are enabled by default. To disable them, add the following WARNING_FILTER rule to the project configuration file. 
WARNING_FILTER += discard class="Inappropriate Array Index (Ada)"

Example

procedure Buffer_Overflow is
    type Int_Array is array (0 .. 2) of Integer;
    X, Y : Int_Array;
begin
    for I in X'Range loop
    X (I) := I + 1;
    end loop;

    for I in X'Range loop
    Y (X (I)) := I;  -- warning issued here:  when I = 2,  (I) = 3
    end loop;
end Buffer_Overflow;

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

 

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