linux-kernel - Re: [PATCH 1/6] staging: erofs: some compressed cluster should be submitted for corrupted images

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Date:   Mon, 19 Aug 2019 22:39:43 +0800
From:   Chao Yu <chao@...nel.org>
To:     Gao Xiang <gaoxiang25@...wei.com>, Chao Yu <yuchao0@...wei.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, linux-fsdevel@...r.kernel.org
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-erofs@...ts.ozlabs.org,
        Miao Xie <miaoxie@...wei.com>, weidu.du@...wei.com,
        Fang Wei <fangwei1@...wei.com>, stable@...r.kernel.org
Subject: Re: [PATCH 1/6] staging: erofs: some compressed cluster should be
 submitted for corrupted images

On 2019-8-19 18:34, Gao Xiang wrote:
> As reported by erofs_utils fuzzer, a logical page can belong
> to at most 2 compressed clusters, if one compressed cluster
> is corrupted, but the other has been ready in submitting chain.
> 
> The chain needs to submit anyway in order to keep the page
> working properly (page unlocked with PG_error set, PG_uptodate
> not set).
> 
> Let's fix it now.
> 
> Fixes: 3883a79abd02 ("staging: erofs: introduce VLE decompression support")
> Cc: <stable@...r.kernel.org> # 4.19+
> Signed-off-by: Gao Xiang <gaoxiang25@...wei.com>

Reviewed-by: Chao Yu <yuchao0@...wei.com>

Thanks,