From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Duoming Zhou <duoming@zju.edu.cn>
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
jejb@linux.ibm.com, martin.petersen@oracle.com, kuba@kernel.org,
john.garry@huawei.com, gregkh@linuxfoundation.org,
davem@davemloft.net
Subject: Re: [PATCH] scsi: libsas: fix use-after-free bug in smp_execute_task_sg
Date: Sun, 25 Sep 2022 12:56:44 -0400 [thread overview]
Message-ID: <yq15yhbs890.fsf@ca-mkp.ca.oracle.com> (raw)
In-Reply-To: <20220920144213.10536-1-duoming@zju.edu.cn> (Duoming Zhou's message of "Tue, 20 Sep 2022 22:42:13 +0800")
Duoming,
> When executing SMP task failed, the smp_execute_task_sg() calls
> del_timer() to delete the "slow_task->timer". However, if the timer
> handler sas_task_internal_timedout() is running, the del_timer() in
> smp_execute_task_sg() will not stop it and the UAF bug will happen.
Applied to 6.1/scsi-staging, thanks!
--
Martin K. Petersen Oracle Linux Engineering
prev parent reply other threads:[~2022-09-25 16:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-20 14:42 [PATCH] scsi: libsas: fix use-after-free bug in smp_execute_task_sg Duoming Zhou
2022-09-22 14:06 ` Jason Yan
2022-09-24 2:46 ` duoming
2022-09-25 16:56 ` Martin K. Petersen [this message]
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