Messages in this thread Patch in this message | | | From | Jeongjun Park <> | Subject | Re: [syzbot] possible deadlock in input_event (2) | Date | Sat, 20 Apr 2024 15:15:05 +0900 |
| |
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
| |