linux-kernel - Re: ubiblock: null pointer dereference using scatterlist in work

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Message-ID: <ZNOec8JmndA63Mnh@PC-LX-Wurm>
Date:   Wed, 9 Aug 2023 16:10:59 +0200
From:   Stephan Wurm <stephan.wurm@...berle.de>
To:     hch <hch@....de>
Cc:     Richard Weinberger <richard@....at>,
        linux-block <linux-block@...r.kernel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-mtd <linux-mtd@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Johannes Eigner <johannes.eigner@...berle.de>
Subject: Re: ubiblock: null pointer dereference using scatterlist in
 work_queue

Am 09. Aug 15:53 hat hch geschrieben:
> Well, a scatterlist culd contain a highmem page, in which case sg_virt
> isn't going to cut it and you need to kmap.  Is this a 32-bit system
> with highmem enabled?
I can confirm it is a 32-bit system with highmem enabled.