linux-kernel - Re: [PATCH] scsi: imm: fix use-after-free bugs caused by unfinished delayed work

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Message-ID: <176524933130.418581.8604572296942599990.b4-ty@oracle.com>
Date: Mon,  8 Dec 2025 22:21:02 -0500
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: linux-scsi@...r.kernel.org, Duoming Zhou <duoming@....edu.cn>
Cc: "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-kernel@...r.kernel.org, James.Bottomley@...senPartnership.com
Subject: Re: [PATCH] scsi: imm: fix use-after-free bugs caused by unfinished delayed work

On Tue, 28 Oct 2025 18:01:49 +0800, Duoming Zhou wrote:

> The delayed work item imm_tq is initialized in imm_attach() and
> scheduled via imm_queuecommand() for processing SCSI commands.
> When the IMM parallel port SCSI host adapter is detached through
> imm_detach(), the imm_struct device instance is deallocated.
> 
> However, the delayed work might still be pending or executing
> when imm_detach() is called, leading to use-after-free bugs
> when the work function imm_interrupt() accesses the already
> freed imm_struct memory.
> 
> [...]

Applied to 6.19/scsi-queue, thanks!

[1/1] scsi: imm: fix use-after-free bugs caused by unfinished delayed work
      https://git.kernel.org/mkp/scsi/c/ab58153ec64f

-- 
Martin K. Petersen