From: Chao Yu <chao@kernel.org>
To: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org
Cc: linux-erofs@lists.ozlabs.org, linux-kernel@vger.kernel.org,
Gao Xiang <gaoxiang25@huawei.com>, Chao Yu <yuchao0@huawei.com>
Subject: [PATCH 8/9] staging: erofs: fix compression mapping beyond EOF
Date: Tue, 21 Aug 2018 22:49:36 +0800 [thread overview]
Message-ID: <20180821144937.20555-9-chao@kernel.org> (raw)
In-Reply-To: <20180821144937.20555-1-chao@kernel.org>
From: Gao Xiang <gaoxiang25@huawei.com>
Logical address of EOF LTP mapping should start at
`inode->i_size' rather than `inode->i_size - 1' to
`m_la(in)', fix it.
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
drivers/staging/erofs/unzip_vle.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/erofs/unzip_vle.c b/drivers/staging/erofs/unzip_vle.c
index dab892157e51..6c4c9280cb8c 100644
--- a/drivers/staging/erofs/unzip_vle.c
+++ b/drivers/staging/erofs/unzip_vle.c
@@ -1548,7 +1548,7 @@ int z_erofs_map_blocks_iter(struct inode *inode,
if (unlikely(map->m_la >= inode->i_size)) {
BUG_ON(!initial);
map->m_llen = map->m_la + 1 - inode->i_size;
- map->m_la = inode->i_size - 1;
+ map->m_la = inode->i_size;
map->m_flags = 0;
goto out;
}
--
2.18.0
next prev parent reply other threads:[~2018-08-21 14:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-21 14:49 [PATCH v2 0/9] staging: erofs: fix some issues and clean up codes Chao Yu
2018-08-21 14:49 ` [PATCH 1/9] staging: erofs: introduce erofs_grab_bio Chao Yu
2018-08-21 14:49 ` [PATCH 2/9] staging: erofs: separate erofs_get_meta_page Chao Yu
2018-08-21 14:49 ` [PATCH 3/9] staging: erofs: add error handling for xattr submodule Chao Yu
2018-08-21 14:49 ` [PATCH 4/9] staging: erofs: cleanup z_erofs_vle_work_{lookup, register} Chao Yu
2018-08-21 14:49 ` [PATCH 5/9] staging: erofs: rearrange vle clustertype definitions Chao Yu
2018-08-21 14:49 ` [PATCH 6/9] staging: erofs: fix vle_decompressed_index_clusterofs Chao Yu
2018-08-21 14:49 ` [PATCH 7/9] staging: erofs: fix integer overflow on 32-bit platform Chao Yu
2018-08-21 14:49 ` Chao Yu [this message]
2018-08-21 14:49 ` [PATCH 9/9] staging: erofs: fix potential overflow in erofs_grab_bio() Chao Yu
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