[PATCH] tomoyo: add missing rcu_dereference()

From: Kees Cook
Date: Thu Dec 08 2011 - 19:33:47 EST


Adds a missed rcu_dereference() around real_parent.

Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
security/tomoyo/common.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index ed311d7..cb9f5c2 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -1122,7 +1122,7 @@ static inline pid_t tomoyo_sys_getppid(void)
{
pid_t pid;
rcu_read_lock();
- pid = task_tgid_vnr(current->real_parent);
+ pid = task_tgid_vnr(rcu_dereference(current->real_parent));
rcu_read_unlock();
return pid;
}
--
1.7.0.4

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