linux-kernel - [PATCH] Input: fix open count when closing inhibited device

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 for Android: free password hash cracker in your pocket

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

Date:   Tue, 2 May 2023 13:34:27 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     linux-input@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Peter Hutterer <peter.hutterer@...-t.net>
Subject: [PATCH] Input: fix open count when closing inhibited device

Because the kernel increments device's open count in input_open_device()
even if device is inhibited, the counter should always be decremented in
input_close_device() to keep it balanced.

Fixes: a181616487db ("Input: Add "inhibited" property")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 drivers/input/input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index f791d14ecf23..8c5fdb0f858a 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -705,7 +705,7 @@ void input_close_device(struct input_handle *handle)
 
 	__input_release_device(handle);
 
-	if (!dev->inhibited && !--dev->users) {
+	if (!--dev->users && !dev->inhibited) {
 		if (dev->poller)
 			input_dev_poller_stop(dev->poller);
 		if (dev->close)
-- 
2.40.1.495.gc816e09b53d-goog


-- 
Dmitry