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Date:   Sat, 23 Oct 2021 15:47:10 +0200
From:   "Fabio M. De Francesco" <>
Cc:     syzbot <>
Subject: Re: [syzbot] INFO: trying to register non-static key in hci_uart_tty_receive (3)

On Saturday, October 23, 2021 1:54:24 AM CEST syzbot wrote:
> Hello,
> syzbot found the following issue on:
> HEAD commit:    519d81956ee2 Linux 5.15-rc6
> git tree:       upstream
> console output:
> kernel config:
> dashboard link:
> 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 
> Reported-by:
> INFO: trying to register non-static key.
> The code is fine but needs lockdep annotation, or maybe
> you didn't initialize this object before use?
> turning off the locking correctness validator.

Let's try the solution attached.


#syz test
git:// master
View attachment "hci_ldisc.c.diff" of type "text/x-patch" (573 bytes)

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