Re: [syzbot] [input?] [usb?] WARNING: ODEBUG bug in hid_device_remove

[Hillf Danton <hdanton@sina.com>]

> Date: Sat, 15 Aug 2026 01:41:39 -0700	[thread overview]
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    28d012efb432 Add linux-next specific files for 20260812
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1613f479580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=5a13c7bc480b5c3f
> dashboard link: https://syzkaller.appspot.com/bug?extid=f8fb5598924c7e645553
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17bc1c79580000

#syz test 

--- x/drivers/hid/hid-corsair.c
+++ y/drivers/hid/hid-corsair.c
@@ -524,6 +524,7 @@ static void k90_cleanup_backlight(struct
 
 	if (drvdata->backlight) {
 		drvdata->backlight->removed = true;
+		disable_work(&drvdata->backlight->work);
 		cancel_work_sync(&drvdata->backlight->work);
 		led_classdev_unregister(&drvdata->backlight->cdev);
 		kfree(drvdata->backlight->cdev.name);
@@ -540,6 +541,7 @@ static void k90_cleanup_macro_functions(
 		sysfs_remove_group(&dev->dev.kobj, &k90_attr_group);
 
 		k90->record_led.removed = true;
+		disable_work(&k90->record_led.work);
 		cancel_work_sync(&k90->record_led.work);
 		led_classdev_unregister(&k90->record_led.cdev);
 		kfree(k90->record_led.cdev.name);
--