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From:   Gao Xiang <gaoxiang25@huawei.com>
To:     Chao Yu <yuchao0@huawei.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        <devel@driverdev.osuosl.org>, <linux-fsdevel@vger.kernel.org>
CC:     LKML <linux-kernel@vger.kernel.org>,
        <linux-erofs@lists.ozlabs.org>, "Chao Yu" <chao@kernel.org>,
        Miao Xie <miaoxie@huawei.com>, <weidu.du@huawei.com>,
        Fang Wei <fangwei1@huawei.com>,
        Gao Xiang <gaoxiang25@huawei.com>
Subject: [PATCH 0/6] staging: erofs: first stage of corrupted compressed images
Date:   Mon, 19 Aug 2019 18:34:20 +0800
Message-ID: <20190819103426.87579-1-gaoxiang25@huawei.com>
In-Reply-To: <20190819080218.GA42231@138>
References: <20190819080218.GA42231@138>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
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Hi all,

I have fuzzed EROFS for about a day and observed the following
issues due to corrupted compression images by my first fuzzer
(It seems ok for uncompressed images for now). Now it can survive
for 10+ minutes on my PC (Let me send out what I'm done and
I will dig it more deeply...)

All the fixes are trivial.

Note that those have dependency on EFSCORRUPTED, so for-next
is needed and I will manually backport them by hand due to
many cleanup patches...

Thanks,
Gao Xiang

Gao Xiang (6):
  staging: erofs: some compressed cluster should be submitted for
    corrupted images
  staging: erofs: cannot set EROFS_V_Z_INITED_BIT if fill_inode_lazy
    fails
  staging: erofs: add two missing erofs_workgroup_put for corrupted
    images
  staging: erofs: avoid loop in submit chains
  staging: erofs: detect potential multiref due to corrupted images
  staging: erofs: avoid endless loop of invalid lookback distance 0

 drivers/staging/erofs/zdata.c | 46 ++++++++++++++++++++++++++---------
 drivers/staging/erofs/zmap.c  |  9 +++++--
 2 files changed, 42 insertions(+), 13 deletions(-)

-- 
2.17.1