From: Olga Kornievskaia <kolga@netapp.com>
To: <linux-fsdevel@vger.kernel.org>
Cc: <hch@lst.de>, <linux-nfs@vger.kernel.org>
Subject: [PATCH v1 1/3] fs: Don't copy beyond the end of the file
Date: Thu, 2 Mar 2017 11:02:09 -0500 [thread overview]
Message-ID: <20170302160211.30451-2-kolga@netapp.com> (raw)
In-Reply-To: <20170302160211.30451-1-kolga@netapp.com>
From: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
fs/read_write.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/read_write.c b/fs/read_write.c
index 5816d4c..1d9e305 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1526,6 +1526,9 @@ ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in,
if (unlikely(ret))
return ret;
+ if (pos_in >= i_size_read(inode_in))
+ return -EINVAL;
+
if (!(file_in->f_mode & FMODE_READ) ||
!(file_out->f_mode & FMODE_WRITE) ||
(file_out->f_flags & O_APPEND))
--
1.8.3.1
next prev parent reply other threads:[~2017-03-02 16:08 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-02 16:02 [PATCH v1 0/3] VFS changes for NFSv4.2 "inter" server-to-server COPY op Olga Kornievskaia
2017-03-02 16:02 ` Olga Kornievskaia [this message]
2017-03-02 16:58 ` [PATCH v1 1/3] fs: Don't copy beyond the end of the file Darrick J. Wong
2017-03-02 18:21 ` Olga Kornievskaia
2017-03-02 18:40 ` Darrick J. Wong
2017-03-07 23:43 ` Christoph Hellwig
2017-03-07 23:46 ` Olga Kornievskaia
2017-03-07 23:50 ` Christoph Hellwig
2017-03-08 15:39 ` Olga Kornievskaia
2017-03-08 15:57 ` Christoph Hellwig
2017-03-02 16:02 ` [PATCH v1 2/3] VFS permit cross device vfs_copy_file_range Olga Kornievskaia
2017-03-02 16:07 ` Christoph Hellwig
2017-03-02 16:38 ` Olga Kornievskaia
2017-03-07 20:35 ` Olga Kornievskaia
2017-03-15 18:09 ` J. Bruce Fields
2017-03-21 15:50 ` J. Bruce Fields
[not found] ` <56CDE406-AE24-40E4-852C-1C47C5CCD37E@netapp.com>
2017-03-21 19:03 ` J. Bruce Fields
2017-03-22 17:16 ` Olga Kornievskaia
2018-08-31 16:13 ` Florian Weimer
2018-08-31 16:25 ` Olga Kornievskaia
2018-08-31 22:56 ` Steve French
2017-03-02 16:02 ` [PATCH v1 3/3] VFS don't try clone if superblocks are different Olga Kornievskaia
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