linux-kernel - [PATCH 02/11] futex: Add missing annotation for wake_futex

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

Message-Id: <0cfbbe1031005c37bf478c5a59d33cc83ef9a4a6.1581282103.git.jbi.octave@gmail.com>
Date:   Sun,  9 Feb 2020 22:29:25 +0000
From:   Jules Irenge <jbi.octave@...il.com>
To:     boqun.feng@...il.com
Cc:     dvhart@...radead.org, peterz@...radead.org, mingo@...hat.com,
        tglx@...utronix.de, linux-kernel@...r.kernel.org,
        Jules Irenge <jbi.octave@...il.com>
Subject: [PATCH 02/11] futex: Add missing annotation for wake_futex_pi()

Sparse reports a warning at wake_futex_pi()

warning: context imbalance in wake_futex_pi() - unexpected unlock

The root cause is amissing annotation of wake_futex_pi().

Add the missing __releases(&pi_state->pi_mutex.wait_lock) annotation

Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
 kernel/futex.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/futex.c b/kernel/futex.c
index 0cf84c8664f2..93e7510a5b36 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1550,6 +1550,7 @@ static void mark_wake_futex(struct wake_q_head *wake_q, struct futex_q *q)
  * Caller must hold a reference on @pi_state.
  */
 static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_pi_state *pi_state)
+	__releases(&pi_state->pi_mutex.wait_lock)
 {
 	u32 uninitialized_var(curval), newval;
 	struct task_struct *new_owner;
-- 
2.24.1