From: sashiko-bot@kernel.org
To: "Anthony Krowiak" <akrowiak@linux.ibm.com>
Cc: kvm@vger.kernel.org, "Vasily Gorbik" <gor@linux.ibm.com>,
linux-s390@vger.kernel.org, "Heiko Carstens" <hca@linux.ibm.com>,
"Alexander Gordeev" <agordeev@linux.ibm.com>
Subject: Re: [PATCH 4/5] s390/vfio-ap: Fix required lock not held during update of ap_matrix_mdev object
Date: Sat, 08 Aug 2026 17:34:17 +0000 [thread overview]
Message-ID: <20260808173418.271231F000E9@smtp.kernel.org> (raw)
In-Reply-To: <20260808170712.839066-5-akrowiak@linux.ibm.com>
> In the vfio_ap_mdev_cfg_add function, the apm_add, aqm_add and adm_add
> fields of an ap_matrix_mdev object fields are modified while not holding
> the matrix_dev->mdevs_lock. This lock must be held while making these
> to guard against a race condition with another caller that may be
> concurrently modifying these fields or any of the fields in the
> matrix_mdev->matrix.
>
> Fixes: eeb386aeb5b7c ("s390/vfio-ap: handle config changed and scan complete notification")
> Cc: stable@vger.kernel.org
> Signed-off-by: Anthony Krowiak <akrowiak@linux.ibm.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260808170712.839066-1-akrowiak@linux.ibm.com?part=4
next prev parent reply other threads:[~2026-08-08 17:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-08 17:07 [PATCH 0/5] s390/vfio-ap: Fix bugs in vfio_ap device driver callback functions Anthony Krowiak
2026-08-08 17:07 ` [PATCH 1/5] s390/vfio-ap: Fix stale do_remove flag across iterations in vfio_ap_mdev_cfg_remove Anthony Krowiak
2026-08-08 17:49 ` sashiko-bot
2026-08-10 14:01 ` Anthony Krowiak
2026-08-10 19:03 ` Anthony Krowiak
2026-08-08 17:07 ` [PATCH 2/5] s390/vfio-ap: Fix dereference matrix_mdev->kvm without checking for NULL Anthony Krowiak
2026-08-08 17:36 ` sashiko-bot
2026-08-10 14:37 ` Anthony Krowiak
2026-08-08 17:07 ` [PATCH 3/5] s390/vfio-ap: Fix use of wrong lock in mdev probe function Anthony Krowiak
2026-08-08 17:32 ` sashiko-bot
2026-08-08 17:07 ` [PATCH 4/5] s390/vfio-ap: Fix required lock not held during update of ap_matrix_mdev object Anthony Krowiak
2026-08-08 17:34 ` sashiko-bot [this message]
2026-08-08 17:07 ` [PATCH 5/5] s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove Anthony Krowiak
2026-08-08 17:30 ` sashiko-bot
2026-08-10 18:02 ` Anthony Krowiak
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