Hello All I have searched for Maintainers List to get the correct Maintainer for my patch. But i am not getting exact maintainer to which i should forward my patch. Will any body please tell me,to which maintainer i should forward my patch for its inclusion?
Summery of the Patch: This patch Warns the administrator about the fork bombing attack (whenever any user is crossing its process limit). I have used printk_ratelimit function in this patch. This function helps to prevent flooding of syslog and prints message as per the values set by root user in following files:- 1) /proc/sys/kernel/printk_ratelimit:- This file contains value for, how many times message should be printed in syslog. 2) /proc/sys/kernel/printk_ratelimit_burst: - This file contains value for, after how much time message should be repeated. This patch is really helpful for administrator/root user from security point of view. They can take action against attacker by looking at syslog messages related with fork bombing attack. Added comments will definitely help developers. Signed-Off-by: Anand Jahagirdar <[EMAIL PROTECTED]>
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 2007-06-26 20:40:06.000000000 +0530 +++ root/Desktop/a1/linux-2.6.17.tar.bz2_FILES/linux-2.6.17/kernel/fork.c 2007-06-26 20:41:41.000000000 +0530 @@ -957,12 +957,19 @@ retval = -EAGAIN; - + /* + * following code does not allow Non Root User to cross its process + * limit and it alerts administrator about user crossing the process limit. + */ + 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) + p->user != &root_user) { + if (printk_ratelimit()) + printk(KERN_WARNING "User with uid %u is crossing the process limit\n",p->user->uid); + goto bad_fork_free; - + } atomic_inc(&p->user->__count); atomic_inc(&p->user->processes);