Index: root/Desktop/a1/linux-2.6.17.tar.bz2_FILES/linux-2.6.17/kernel/fork.c =================================================================== --- root.orig/Desktop/a1/linux-2.6.17.tar.bz2_FILES/linux-2.6.17/kernel/fork.c 2007-06-04 17:46:03.000000000 +0530 +++ root/Desktop/a1/linux-2.6.17.tar.bz2_FILES/linux-2.6.17/kernel/fork.c 2007-06-04 17:47:14.000000000 +0530 @@ -957,7 +957,19 @@ retval = -EAGAIN; + /* + * following code prints a message which alerts administrator/root * user about fork bombing Attack + */ + if ((atomic_read(&p->user->processes) >= (p->signal->rlim [RLIMIT_NPROC].rlim_cur - 1)) && (atomic_read(&p->user->processes) < p->signal->rlim[RLIMIT_NPROC].rlim_cur)) { + if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) && p->user != &root_user) { + printk(KERN_CRIT"User with uid %d is crossing its Process limit\n",p->user->uid); + } + } + /* + * following code does not allow Non Root User to cross its process + * limit and it prevents Fork Bombing Attack. + */ if (atomic_read(&p->user->processes) >= p->signal->rlim[RLIMIT_NPROC].rlim_cur) if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) && p->user != &root_user)