Oleg Nesterov b95c35e76b oom: fix the unsafe usage of badness() in proc_oom_score() ... proc_oom_score(task) has a reference to task_struct, but that is all. If this task was already released before we take tasklist_lock - we can't use task->group_leader, it points to nowhere - it is not safe to call badness() even if this task is ->group_leader, has_intersects_mems_allowed() assumes it is safe to iterate over ->thread_group list. - even worse, badness() can hit ->signal == NULL Add the pid_alive() check to ensure __unhash_process() was not called. Also, use "task" instead of task->group_leader. badness() should return the same result for any sub-thread. Currently this is not true, but this should be changed anyway. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-04-01 08:50:21 -07:00
..
array.c	fs: use rlimit helpers	2010-03-06 11:26:29 -08:00
base.c	oom: fix the unsafe usage of badness() in proc_oom_score()	2010-04-01 08:50:21 -07:00
cmdline.c
cpuinfo.c
devices.c
generic.c	proc: warn on non-existing proc entries	2010-03-06 11:26:45 -08:00
inode.c
internal.h
interrupts.c
Kconfig
kcore.c	kcore: fix test for end of list	2010-03-24 16:31:22 -07:00
kmsg.c
loadavg.c
Makefile
meminfo.c
mmu.c
nommu.c
page.c
proc_devtree.c
proc_net.c
proc_sysctl.c
proc_tty.c
root.c	some clean up in fs/proc	2010-03-03 13:00:18 -05:00
softirqs.c
stat.c
task_mmu.c	mm: count swap usage	2010-03-06 11:26:24 -08:00
task_nommu.c
uptime.c
version.c
vmcore.c