[pierz@server ~]$ cat test.c
#include <string.h>

main (int argc, char *argv[]){
        char buffer[5];
        strcpy(buffer,argv[1]);
}
[pierz@server ~]$ ./test `perl -e 'print "A"x300'`
Erreur de segmentation (core dumped)
[pierz@server ~]$ gdb -c core -q
Failed to read a valid object file image from memory.
Core was generated by `./test AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA`.
Program terminated with signal 11, Segmentation fault.
#0  0x080483b4 in ?? ()
(gdb) q
[pierz@server ~]$ cat test2.c
#include <string.h>

void fu(char * str){
        char buffer[8];
        strcpy(buffer,str);
}

main (int argc, char *argv[]){
        fu(argv[1]);
}

[pierz@server ~]$ ./test2 `perl -e 'print "A"x300'`
Erreur de segmentation (core dumped)
[pierz@server ~]$ gdb -c core -q
Failed to read a valid object file image from memory.
Core was generated by `./test2 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA`.
Program terminated with signal 11, Segmentation fault.
#0  0x41414141 in ?? ()
(gdb) q