LANG.STRUCT.RPL : Return Pointer to Local

JavaScript is not currently enabled, but is required for full CodeSonar manual search and browse functionality.

If you are viewing this file in your hub's Web GUI, enable JavaScript in your browser: you will also need it for GUI functionality.

If you opened this file directly from disk, your browser may be directly suppressing JavaScript functionality: certain browsers perform this suppression on local files (but not files delivered by web servers) for security reasons.

If you access the manual through the hub's Web GUI, the functionality will not be suppressed because the hub is a web server.
Alternatively, your browser may allow you to explicitly disable the security setting that suppresses functionality. See the CodeSonar FAQ for more information.

A procedure returns a pointer to one of its local variables.

Class Name

Return Pointer to Local

Significance

security

Mnemonic

LANG.STRUCT.RPL

Categories

MisraC2023	MisraC2023:18.6	The address of an object with automatic or thread-local storage shall not be copied to another object that persists after the first object has ceased to exist
Misra2012	Misra2012:18.6	The address of an object with automatic or thread-local storage shall not be copied to another object that persists after the first object has ceased to exist
AUTOSARC++14	AUTOSARC++14:M7-5-1	A function shall not return a reference or a pointer to an automatic variable (including parameters), defined within the function.
MisraC++2008	MisraC++2008:7-5-1	A function shall not return a reference or a pointer to an automatic variable (including parameters), defined within the function.
MisraC++2023	MisraC++2023:6.8.2	A function must not return a reference or a pointer to a local variable with automatic storage duration
CWE	CWE:562	Return of Stack Variable Address
TS17961	TS17961:5.14-nullref	5.14. Dereferencing an out-of-domain pointer
CERT-C	CERT-C:DCL30-C	Declare objects with appropriate storage durations
CERT-CPP	CERT-CPP:EXP53-CPP	Do not read uninitialized memory
JSF++	JSF++:70.1	An object shall not be improperly used before its lifetime begins or after its lifetime ends.
	JSF++:111	A function shall not return a pointer or reference to a non-static local object.
	JSF++:173	The address of an object with automatic storage shall not be assigned to an object which persists after the object has ceased to exist.

Availability

Available for C and C++.

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="Return Pointer to Local"

int * lang_struct_rpl(){
    int j = 7;
    return &j; /* 'Return Pointer To Local' warning issued here */
}

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

LANG.STRUCT.RPL : Return Pointer to Local

Summary

Properties

Example

Relevant Configuration File Parameters