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From: Olga Kornievskaia <kolga@netapp.com>
To: <Trond.Myklebust@primarydata.com>, <anna.schumaker@netapp.com>
Cc: <linux-nfs@vger.kernel.org>
Subject: [PATCH v4 01/12] fs: Don't copy beyond the end of the file
Date: Thu, 28 Sep 2017 13:28:08 -0400	[thread overview]
Message-ID: <20170928172819.50703-2-kolga@netapp.com> (raw)
In-Reply-To: <20170928172819.50703-1-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 a2b9a47..47aec8e 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1563,6 +1563,9 @@ 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


  reply	other threads:[~2017-09-28 17:28 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-28 17:28 [PATCH v4 00/12] NFS support for async intra COPY Olga Kornievskaia
2017-09-28 17:28 ` Olga Kornievskaia [this message]
2017-09-28 17:28 ` [PATCH v4 02/12] NFS CB_OFFLOAD xdr Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 03/12] NFS OFFLOAD_STATUS xdr Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 04/12] NFS OFFLOAD_STATUS op Olga Kornievskaia
2017-09-28 20:32   ` Anna Schumaker
2017-09-28 20:41     ` Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 05/12] NFS OFFLOAD_CANCEL xdr Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 06/12] NFS COPY xdr handle async reply Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 07/12] NFS add support for asynchronous COPY Olga Kornievskaia
2017-09-28 19:33   ` Anna Schumaker
2017-09-28 19:36     ` Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 08/12] NFS handle COPY reply CB_OFFLOAD call race Olga Kornievskaia
2017-09-28 19:50   ` Anna Schumaker
2017-09-28 19:57     ` Olga Kornievskaia
2017-09-28 19:59       ` Anna Schumaker
2017-09-28 17:28 ` [PATCH v4 09/12] NFS export nfs4_async_handle_error Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 10/12] NFS send OFFLOAD_CANCEL when COPY killed Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 11/12] NFS handle COPY ERR_OFFLOAD_NO_REQS Olga Kornievskaia
2017-09-28 17:28 ` [PATCH v4 12/12] NFS add a simple sync nfs4_proc_commit after async COPY Olga Kornievskaia
2017-09-28 20:13   ` Anna Schumaker
2017-09-28 20:34     ` Olga Kornievskaia
2017-09-28 20:40       ` Anna Schumaker
2017-09-29 16:01         ` Olga Kornievskaia

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