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| author | Kees Cook <keescook@chromium.org> | 2011-12-15 08:49:18 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-16 09:42:09 +0100 |
| commit | 07cde2608a3b5c66515363f1b53623b1536b9785 (patch) | |
| tree | 1ef46b4a852a79c9a44f08b177ee256a776a6ad6 /kernel/sched | |
| parent | abd63bc3a0f65ae9d85bc3b1bb067d3e3c2b2cc2 (diff) | |
| download | linux-07cde2608a3b5c66515363f1b53623b1536b9785.tar.gz linux-07cde2608a3b5c66515363f1b53623b1536b9785.tar.bz2 linux-07cde2608a3b5c66515363f1b53623b1536b9785.zip | |
sched: Add missing rcu_dereference() around ->real_parent usage
Wrap another ->real_parent dereference while under rcu_read_lock.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Link: http://lkml.kernel.org/r/20111215164918.GA13003@www.outflux.net
[ tidied up the changelog ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 3c5b21e2ef20..c7ea688faff4 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4784,7 +4784,7 @@ void sched_show_task(struct task_struct *p) free = stack_not_used(p); #endif printk(KERN_CONT "%5lu %5d %6d 0x%08lx\n", free, - task_pid_nr(p), task_pid_nr(p->real_parent), + task_pid_nr(p), task_pid_nr(rcu_dereference(p->real_parent)), (unsigned long)task_thread_info(p)->flags); show_stack(p, NULL); |