linux-kernel - Re: [syzbot] [input?] [usb?] KASAN: slab-use-after-free Read in corsair_void_status_work

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Message-ID: <20250204004435.2084-1-hdanton@sina.com>
Date: Tue,  4 Feb 2025 08:44:34 +0800
From: Hillf Danton <hdanton@...a.com>
To: syzbot <syzbot+ac826dbeecf212c395a0@...kaller.appspotmail.com>
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [input?] [usb?] KASAN: slab-use-after-free Read in corsair_void_status_work_handler

On Mon, 03 Feb 2025 12:21:23 -0800
> syzbot has found a reproducer for the following issue on:
> 
> HEAD commit:    2014c95afece Linux 6.14-rc1
> git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17e26eb0580000

#syz test

--- x/drivers/hid/hid-corsair-void.c
+++ y/drivers/hid/hid-corsair-void.c
@@ -726,6 +726,7 @@ static void corsair_void_remove(struct h
 	if (drvdata->battery)
 		power_supply_unregister(drvdata->battery);
 
+	cancel_delayed_work_sync(&drvdata->delayed_status_work);
 	cancel_delayed_work_sync(&drvdata->delayed_firmware_work);
 	sysfs_remove_group(&hid_dev->dev.kobj, &corsair_void_attr_group);
 }
--