From: Joerg Roedel <joro@8bytes.org>
To: Frank Wunderlich <linux@fw-web.de>
Cc: iommu@lists.linux-foundation.org, Will Deacon <will@kernel.org>,
linux-kernel@vger.kernel.org,
Frank Wunderlich <frank-w@public-files.de>
Subject: Re: [PATCH] iommu: check if group is NULL before remove device
Date: Thu, 15 Jul 2021 09:20:04 +0200 [thread overview]
Message-ID: <YO/hpPpu6Z526+Ia@8bytes.org> (raw)
In-Reply-To: <20210715071150.82157-1-linux@fw-web.de>
On Thu, Jul 15, 2021 at 09:11:50AM +0200, Frank Wunderlich wrote:
> From: Frank Wunderlich <frank-w@public-files.de>
>
> if probe is failing, iommu_group may be not initialized,
Sentences start with capital letters.
IOMMU patch subjects too, after the 'iommu:' prefix.
> so freeing it will result in NULL pointer access
Please describe in more detail how this NULL-ptr dereference is
triggered.
Regards,
Joerg
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iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: Joerg Roedel <joro@8bytes.org>
To: Frank Wunderlich <linux@fw-web.de>
Cc: iommu@lists.linux-foundation.org,
Frank Wunderlich <frank-w@public-files.de>,
Will Deacon <will@kernel.org>,
linux-kernel@vger.kernel.org, yong.wu@mediatek.com
Subject: Re: [PATCH] iommu: check if group is NULL before remove device
Date: Thu, 15 Jul 2021 09:20:04 +0200 [thread overview]
Message-ID: <YO/hpPpu6Z526+Ia@8bytes.org> (raw)
In-Reply-To: <20210715071150.82157-1-linux@fw-web.de>
On Thu, Jul 15, 2021 at 09:11:50AM +0200, Frank Wunderlich wrote:
> From: Frank Wunderlich <frank-w@public-files.de>
>
> if probe is failing, iommu_group may be not initialized,
Sentences start with capital letters.
IOMMU patch subjects too, after the 'iommu:' prefix.
> so freeing it will result in NULL pointer access
Please describe in more detail how this NULL-ptr dereference is
triggered.
Regards,
Joerg
next prev parent reply other threads:[~2021-07-15 7:20 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-15 7:11 [PATCH] iommu: check if group is NULL before remove device Frank Wunderlich
2021-07-15 7:11 ` Frank Wunderlich
2021-07-15 7:20 ` Joerg Roedel [this message]
2021-07-15 7:20 ` Joerg Roedel
2021-07-28 10:35 ` Frank Wunderlich
2021-07-28 10:35 ` Frank Wunderlich
2021-07-30 13:18 ` Frank Wunderlich (linux)
2021-07-30 13:18 ` Frank Wunderlich (linux)
-- strict thread matches above, loose matches on Subject: below --
2021-07-15 7:10 Frank Wunderlich
2021-07-15 7:10 ` Frank Wunderlich
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