linux-kernel - Re: [PATCH v2] bluetooth/l2cap: sync sock recv cb and release

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Date: Mon, 17 Jun 2024 19:00:31 +0000
From: patchwork-bot+bluetooth@...nel.org
To: Edward Adam Davis <eadavis@...com>
Cc: luiz.dentz@...il.com, johan.hedberg@...il.com,
 linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
 marcel@...tmann.org, syzbot+b7f6f8c9303466e16c8a@...kaller.appspotmail.com,
 syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH v2] bluetooth/l2cap: sync sock recv cb and release

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@...el.com>:

On Sat, 15 Jun 2024 09:45:54 +0800 you wrote:
> The problem occurs between the system call to close the sock and hci_rx_work,
> where the former releases the sock and the latter accesses it without lock protection.
> 
>            CPU0                       CPU1
>            ----                       ----
>            sock_close                 hci_rx_work
> 	   l2cap_sock_release         hci_acldata_packet
> 	   l2cap_sock_kill            l2cap_recv_frame
> 	   sk_free                    l2cap_conless_channel
> 	                              l2cap_sock_recv_cb
> 
> [...]

Here is the summary with links:
  - [v2] bluetooth/l2cap: sync sock recv cb and release
    https://git.kernel.org/bluetooth/bluetooth-next/c/e3203b177717

You are awesome, thank you!
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