From: Jeongjun Park <aha310510@gmail.com>
To: syzbot+d4c06e848a1c1f9f726f@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] possible deadlock in input_event (2)
Date: Sat, 20 Apr 2024 15:15:05 +0900 [thread overview]
Message-ID: <20240420061505.62849-1-aha310510@gmail.com> (raw)
In-Reply-To: <0000000000006d6f4105d2fe05ed@google.com>
please test deadlock in input_event
#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
---
drivers/input/evdev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 51e0c4954600..181c798b232b 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -258,7 +258,7 @@ static void evdev_pass_values(struct evdev_client *client,
event.input_event_usec = ts.tv_nsec / NSEC_PER_USEC;
/* Interrupts are disabled, just acquire the lock. */
- spin_lock(&client->buffer_lock);
+ spin_lock_irq(&client->buffer_lock);
for (v = vals; v != vals + count; v++) {
if (__evdev_is_filtered(client, v->type, v->code))
@@ -278,7 +278,7 @@ static void evdev_pass_values(struct evdev_client *client,
__pass_event(client, &event);
}
- spin_unlock(&client->buffer_lock);
+ spin_unlock_irq(&client->buffer_lock);
if (wakeup)
wake_up_interruptible_poll(&client->wait,
--
2.34.1
next prev parent reply other threads:[~2024-04-20 6:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-10 17:01 syzbot
2021-12-13 2:42 ` syzbot
2024-04-19 16:33 ` Jeongjun Park
2024-04-19 17:08 ` [syzbot] [fs?] " syzbot
2024-04-20 6:15 ` Jeongjun Park [this message]
2024-04-20 7:35 ` syzbot
2024-04-20 8:14 ` [syzbot] " Jeongjun Park
2024-04-20 9:53 ` [syzbot] [fs?] " syzbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240420061505.62849-1-aha310510@gmail.com \
--to=aha310510@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=syzbot+d4c06e848a1c1f9f726f@syzkaller.appspotmail.com \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome