"Free function gets stuck" "No source code available for the current location" "JMP _ vec_memzero; Use fast zero sse2

YourselfProgramTo share with you. It's dangerous to remember sprintf!

 

VC ++ 2008 in debug mode

 

# Include <stdio. h> <br/> # include <stdlib. h> </P> <p> int main () <br/> {<br/> char * P = NULL; <br/> P = (char *) malloc (sizeof (char) * 2); <br/> sprintf (P, "ABC"); <br/> free (p); <br/> return 0; <br/>}

 

This program gets stuck when it is executed to free, and F11 is used for debugging until it reaches the assembly language.

 

JMP _ vec_memzero; Use fast zero sse2 implementation

 

The system stops and displays "No information available for the current location ".Source code".

 

Cause:

 

Invalid Memory Access, subscript out of bounds.