On 10/3/21 03:00, syzbot wrote:

Hello,

syzbot found the following issue on:

HEAD commit:    bf5b1e621a51 Add linux-next specific files for 20210927
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=11cc5bd3300000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4b58fe22c337ee4a
dashboard link: https://syzkaller.appspot.com/bug?extid=b88c5eae27386b252bbd
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b88c5eae27386b252bbd@syzkaller.appspotmail.com

dev->work should be initialized before input_register_device(), since 
input_dev->close() calls cancel_work_sync()

#syz test
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master




With regards,
Pavel Skripkin