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From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Richard Weinberger <richard@nod.at>
Cc: Zheng Zhang <zheng.zhang@email.ucr.edu>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Alexander Usyskin <alexander.usyskin@intel.com>,
	Tomas Winkler <tomas.winkler@intel.com>,
	Vitaly Lubart <vitaly.lubart@intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Subject: Re: kernel BUG in __put_mtd_device
Date: Mon, 31 Jul 2023 09:46:19 +0200	[thread overview]
Message-ID: <20230731094619.760e92a6@xps-13> (raw)
In-Reply-To: <89021294.889167.1690781715755.JavaMail.zimbra@nod.at>

Hi Richard,

richard@nod.at wrote on Mon, 31 Jul 2023 07:35:15 +0200 (CEST):

> ----- Ursprüngliche Mail -----
> > Von: "Zheng Zhang" <zheng.zhang@email.ucr.edu>
> > An: "Miquel Raynal" <miquel.raynal@bootlin.com>, "richard" <richard@nod.at>, "Vignesh Raghavendra" <vigneshr@ti.com>,
> > "linux-mtd" <linux-mtd@lists.infradead.org>, "linux-kernel" <linux-kernel@vger.kernel.org>
> > Gesendet: Montag, 31. Juli 2023 01:27:09
> > Betreff: kernel BUG in __put_mtd_device  
> 
> > Miquel, Richard, Vignesh  and  to whom it may concern:
> > 
> > Hello! We have found a bug in MTD driver in the Linux kernel version 6.2.0
> > by Syzkaller with our own templates.
> > It's triggered for multiple times. Unfortunately, it doesn't generate a
> > reproducer.
> > Attached is the report, log generated by syzkaller.
> > Please let me know if there is any additional information that I can
> > provide to help debug this issue.  
> 
> Isn't this related to "[PATCH] mtd: fix use-after-free in mtd release"?

Yes, probably, we received two patches regarding the same issue, but so
far no agreement on them because none fully fixes the issue
apparently...

Thanks,
Miquèl

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

WARNING: multiple messages have this Message-ID (diff)
From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Richard Weinberger <richard@nod.at>
Cc: Zheng Zhang <zheng.zhang@email.ucr.edu>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Alexander Usyskin <alexander.usyskin@intel.com>,
	Tomas Winkler <tomas.winkler@intel.com>,
	Vitaly Lubart <vitaly.lubart@intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Subject: Re: kernel BUG in __put_mtd_device
Date: Mon, 31 Jul 2023 09:46:19 +0200	[thread overview]
Message-ID: <20230731094619.760e92a6@xps-13> (raw)
In-Reply-To: <89021294.889167.1690781715755.JavaMail.zimbra@nod.at>

Hi Richard,

richard@nod.at wrote on Mon, 31 Jul 2023 07:35:15 +0200 (CEST):

> ----- Ursprüngliche Mail -----
> > Von: "Zheng Zhang" <zheng.zhang@email.ucr.edu>
> > An: "Miquel Raynal" <miquel.raynal@bootlin.com>, "richard" <richard@nod.at>, "Vignesh Raghavendra" <vigneshr@ti.com>,
> > "linux-mtd" <linux-mtd@lists.infradead.org>, "linux-kernel" <linux-kernel@vger.kernel.org>
> > Gesendet: Montag, 31. Juli 2023 01:27:09
> > Betreff: kernel BUG in __put_mtd_device  
> 
> > Miquel, Richard, Vignesh  and  to whom it may concern:
> > 
> > Hello! We have found a bug in MTD driver in the Linux kernel version 6.2.0
> > by Syzkaller with our own templates.
> > It's triggered for multiple times. Unfortunately, it doesn't generate a
> > reproducer.
> > Attached is the report, log generated by syzkaller.
> > Please let me know if there is any additional information that I can
> > provide to help debug this issue.  
> 
> Isn't this related to "[PATCH] mtd: fix use-after-free in mtd release"?

Yes, probably, we received two patches regarding the same issue, but so
far no agreement on them because none fully fixes the issue
apparently...

Thanks,
Miquèl

  reply	other threads:[~2023-07-31  7:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAC_GQSpE5nbj7Lt=8sXu8GoSQTRd+=fpZb_zpVKQOJ4MxRHzsw@mail.gmail.com>
2023-07-31  5:35 ` kernel BUG in __put_mtd_device Richard Weinberger
2023-07-31  7:46   ` Miquel Raynal [this message]
2023-07-31  7:46     ` Miquel Raynal
     [not found]   ` <CAC_GQSp7W=MoiWoWo+UFFcZ48JLwsnfL84QWTJm_DNLO7S9AxQ@mail.gmail.com>
2023-08-01  6:58     ` Miquel Raynal
2023-08-01  6:58       ` Miquel Raynal

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