linux-kernel - Re: [PATCH] [PATCH] scsi:bfa: Double-free vulnerability fix

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Message-ID: <f75182a8-90f9-466e-a96b-d454c770f0a5@kernel.org>
Date: Tue, 15 Jul 2025 12:45:00 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: jackysliu <1972843537@...com>, anil.gurumurthy@...gic.com
Cc: sudarsana.kalluru@...gic.com, James.Bottomley@...senPartnership.com,
 martin.petersen@...cle.com, linux-scsi@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [PATCH] scsi:bfa: Double-free vulnerability fix

On 24/06/2025 13:58, jackysliu wrote:
> In the QLogic BR-series Fibre Channel driver (bfad),
> there exists a double-free vulnerability.
> When the bfad_im_probe() function fails during initialization,
> the memory pointed to by bfad->im is freed without
>  setting bfad->im to NULL.
> Subsequently, during driver uninstallation,
> when the state machine enters the bfad_sm_stopping state
> and calls the bfad_im_probe_undo() function,
> it attempts to free the memory pointed to by bfad->im again,
> thereby triggering a double-free vulnerability.
> 
> Signed-off-by: jackysliu <1972843537@...com>
> ---
>  drivers/scsi/bfa/bfad_im.c | 1 +
>  1 file changed, 1 insertion(+)


You should disclose that you used some AI tool for that... and that
other report(s) was really fake finding.  People should know you
generated it with AI, so they could make informed decision whether to
even allocate time here.

Best regards,
Krzysztof