Missing Allocation
Occurs when an invalid pointer is passed to a deallocation function. The invalid address may point to a previously released heap block.
ID | Code Location | Description |
|---|---|---|
1 | Deallocation site | If present, represents the location and associated call stack from which the memory block referenced by the address was previously deallocated. The previous deallocation makes all subsequent deallocation attempts invalid. |
2 | Invalid deallocation site | Represents the location and associated call stack attempting the deallocation. |
C Example
char* pStr = (char*) malloc(20); free(pStr); free(pStr);
Fortran Example
integer, target :: b(100) integer, pointer :: pmiddle pmiddle => b(4) DEALLOCATE( pmiddle )
Possible Correction Strategies
If | Do This |
|---|---|
A double deallocation occurs. | Remove the extraneous deallocation. |
An invalid deallocation occurs. | Fix the pointer value passed to the deallocator. |