From: Greg KH <gregkh@linuxfoundation.org>
To: vsshingne <vaibhavshingne66@gmail.com>
Cc: skhan@linuxfoundation.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb: core: prevent double URB enqueue causing list corruption
Date: Fri, 31 Oct 2025 14:59:07 +0100 [thread overview]
Message-ID: <2025103118-smugness-estimator-d5be@gregkh> (raw)
In-Reply-To: <20251031134739.222555-1-vaibhavshingne66@gmail.com>
On Fri, Oct 31, 2025 at 07:17:39PM +0530, vsshingne wrote:
> Prevents the same URB from being enqueued twice on the same endpoint,
> which could lead to list corruption detected by list_debug.c.
>
> This was observed in syzbot reports where URBs were re-submitted
> before completion, triggering 'list_add double add' errors.
>
> Adding a check to return -EEXIST if the URB is already on a queue
> prevents this corruption.
This text makes no sense at all, it does not describe what this patch
does in any way. Please do not use AI to generate patches.
greg k-h
next prev parent reply other threads:[~2025-10-31 13:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-31 13:47 [PATCH] usb: core: prevent double URB enqueue causing list corruption vsshingne
2025-10-31 13:59 ` Greg KH [this message]
2025-10-31 14:13 ` Alan Stern
2025-10-31 17:21 ` Shuah Khan
-- strict thread matches above, loose matches on Subject: below --
2025-10-31 13:50 vsshingne
2025-10-31 13:59 ` Greg KH
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