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From: Richard Weinberger <richard@nod.at>
To: Stephan Wurm <stephan.wurm@a-eberle.de>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
	 Vignesh Raghavendra <vigneshr@ti.com>,
	 linux-mtd <linux-mtd@lists.infradead.org>,
	 linux-kernel <linux-kernel@vger.kernel.org>,
	 Johannes Eigner <johannes.eigner@a-eberle.de>
Subject: Re: ubiblock: null pointer dereference using scatterlist in work_queue
Date: Mon, 17 Jul 2023 22:54:18 +0200 (CEST)	[thread overview]
Message-ID: <961736756.5775.1689627258484.JavaMail.zimbra@nod.at> (raw)
In-Reply-To: <ZLVWfrlEOWT1twpr@PC-LX-Wurm>

----- Ursprüngliche Mail -----
> Von: "Stephan Wurm" <stephan.wurm@a-eberle.de>
> [   50.502309] 55nth call of ubi_ea_read_leb_sg
> [   64.939917] sgl[00000000] => 00000000: page_link=4025764322, offset=0,
> length=512

Hmm, blk_rq_map_sg() returns non-zero,  sg_nents() is also non-zero but the very first sg list entry is
not virtually mapped.


Thanks,
//richard

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WARNING: multiple messages have this Message-ID (diff)
From: Richard Weinberger <richard@nod.at>
To: Stephan Wurm <stephan.wurm@a-eberle.de>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Johannes Eigner <johannes.eigner@a-eberle.de>
Subject: Re: ubiblock: null pointer dereference using scatterlist in work_queue
Date: Mon, 17 Jul 2023 22:54:18 +0200 (CEST)	[thread overview]
Message-ID: <961736756.5775.1689627258484.JavaMail.zimbra@nod.at> (raw)
In-Reply-To: <ZLVWfrlEOWT1twpr@PC-LX-Wurm>

----- Ursprüngliche Mail -----
> Von: "Stephan Wurm" <stephan.wurm@a-eberle.de>
> [   50.502309] 55nth call of ubi_ea_read_leb_sg
> [   64.939917] sgl[00000000] => 00000000: page_link=4025764322, offset=0,
> length=512

Hmm, blk_rq_map_sg() returns non-zero,  sg_nents() is also non-zero but the very first sg list entry is
not virtually mapped.


Thanks,
//richard

  reply	other threads:[~2023-07-19  5:13 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-17  8:07 ubiblock: null pointer dereference using scatterlist in work_queue Stephan Wurm
2023-07-17  8:07 ` Stephan Wurm
2023-07-17  9:42 ` Richard Weinberger
2023-07-17  9:42   ` Richard Weinberger
2023-07-17 10:27   ` Stephan Wurm
2023-07-17 10:27     ` Stephan Wurm
2023-07-17 11:03     ` Richard Weinberger
2023-07-17 11:03       ` Richard Weinberger
2023-07-17 14:55       ` Stephan Wurm
2023-07-17 14:55         ` Stephan Wurm
2023-07-17 20:54         ` Richard Weinberger [this message]
2023-07-17 20:54           ` Richard Weinberger
2023-07-19 14:31         ` Richard Weinberger
2023-07-19 14:31           ` Richard Weinberger
2023-07-19 14:38           ` Wurm, Stephan
2023-07-19 14:38             ` Wurm, Stephan
2023-07-21  7:41             ` Wurm, Stephan
2023-07-21  7:41               ` Wurm, Stephan
2023-08-07 22:02 ` Richard Weinberger
2023-08-07 22:02   ` Richard Weinberger
2023-08-09 13:53   ` hch
2023-08-09 13:53     ` hch
2023-08-09 14:10     ` Stephan Wurm
2023-08-09 14:10       ` Stephan Wurm
2023-08-09 14:15       ` hch
2023-08-09 14:15         ` hch
2023-08-09 22:34         ` Richard Weinberger
2023-08-09 22:34           ` Richard Weinberger
2023-08-09 22:37           ` hch
2023-08-09 22:37             ` hch
2023-08-09 22:43             ` Richard Weinberger
2023-08-09 22:43               ` Richard Weinberger
2023-08-10 15:43               ` hch
2023-08-10 15:43                 ` hch

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