On 20.03.25 05:39, 白烁冉 wrote:
Dear Maintainers, When using our customized Syzkaller to fuzz the latest Linux kernel, the following crash (94th)was triggered.
Hi, is there a way to use the syzkaller for testing a patch? Regards Oliver
From 03d78ca8c47c8c888df7c7ae2c7109825799d236 Mon Sep 17 00:00:00 2001 From: Oliver Neukum <oneukum@xxxxxxxx> Date: Thu, 20 Mar 2025 14:29:17 +0100 Subject: [PATCH] USB: cm109: fix race between restarting and close cm109_input_close() can race with cm109_restore_state() Hence cm109_submit_buzz_toggle() needs to check the shutdown flag Signed-off-by: Oliver Neukum <oneukum@xxxxxxxx> --- drivers/input/misc/cm109.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c index 0cfe5d4a573c..8ae62b5e45f6 100644 --- a/drivers/input/misc/cm109.c +++ b/drivers/input/misc/cm109.c @@ -348,6 +348,8 @@ static void cm109_submit_buzz_toggle(struct cm109_dev *dev) else dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON; + if (dev->shutdown) + return; error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); if (error) dev_err(&dev->intf->dev, -- 2.48.1
