linux-kernel - Re: [PATCH] Bluetooth: hci_conn

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Message-ID: <2023100727-passive-untidy-8df4@gregkh>
Date:   Sat, 7 Oct 2023 13:41:38 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Yuran Pereira <yuran.pereira@...mail.com>
Cc:     marcel@...tmann.org, johan.hedberg@...il.com,
        linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
        luiz.dentz@...il.com,
        syzbot+39ec16ff6cc18b1d066d@...kaller.appspotmail.com,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: Re: [PATCH] Bluetooth: hci_conn_failed: Fixes memory leak

On Sat, Oct 07, 2023 at 05:09:01PM +0530, Yuran Pereira wrote:
> The hci_conn_failed() function currently calls hci_connect_cfm(), which
> indirectly leads to the allocation of an l2cap_conn struct in l2cap_conn_add().
> This operation results in a memory leak, as the l2cap_conn structure
> becomes unreferenced.
> 
> To address this issue and prevent the memory leak, this patch modifies
> hci_conn_failed() to replace the call to hci_connect_cfm() with a
> call to hci_disconn_cfm().
> 
> Reported-by: syzbot+39ec16ff6cc18b1d066d@...kaller.appspotmail.com
> Signed-off-by: Yuran Pereira <yuran.pereira@...mail.com>
> ---
>  net/bluetooth/hci_conn.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

What commit id does this fix?

thanks,

greg k-h