linux-kernel - [PATCH] tomoyo: add missing rcu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 8 Dec 2011 16:30:42 -0800
From:	Kees Cook <keescook@...omium.org>
To:	linux-kernel@...r.kernel.org
Cc:	Kentaro Takeda <takedakn@...data.co.jp>,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	James Morris <jmorris@...ei.org>,
	linux-security-module@...r.kernel.org
Subject: [PATCH] tomoyo: add missing rcu_dereference()

Adds a missed rcu_dereference() around real_parent.

Signed-off-by: Kees Cook <keescook@...omium.org>
---
 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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/