Jeff Layton 67fad106a2 nfs: don't zero out the rest of the page if we hit the EOF on a DIO READ ... Eryu provided a test program that would segfault when attempting to read past the EOF on file that was opened O_DIRECT. The buffer given to the read() call was on the stack, and when he attempted to read past it it would scribble over the rest of the stack page. If we hit the end of the file on a DIO READ request, then we don't want to zero out the rest of the buffer. These aren't pagecache pages after all, and there's no guarantee that the buffers that were passed in represent entire pages. Cc: <stable@vger.kernel.org> # v3.5+ Cc: Fred Isaman <iisaman@netapp.com> Reported-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>		2012-12-12 12:56:09 -05:00
..
blocklayout	NFSv4.1: Move slot table and session struct definitions to nfs4session.h	2012-12-06 00:30:46 +01:00
objlayout	NFSv4.1: Remove unused function last_byte_offset	2012-11-04 14:43:38 -05:00
cache_lib.c	NFSv4: Get rid of unnecessary BUG_ON()s	2012-11-04 14:43:39 -05:00
cache_lib.h	NFS: DNS resolver PipeFS notifier introduced	2012-01-31 18:20:26 -05:00
callback_proc.c	NFSv4.1: Cleanup move session slot management to fs/nfs/nfs4session.c	2012-12-06 00:30:45 +01:00
callback_xdr.c	NFSv4.1: Move slot table and session struct definitions to nfs4session.h	2012-12-06 00:30:46 +01:00
callback.c	NFSv4: Fix the return value for nfs_callback_start_svc	2012-10-16 13:14:42 -04:00
callback.h	NFSv4.1: Clean up session draining	2012-12-06 00:30:44 +01:00
client.c	NFS: Get rid of unnecessary asserts	2012-11-04 14:43:38 -05:00
delegation.c	NFS: Create a return_delegation rpc op	2012-06-29 11:46:45 -04:00
delegation.h	NFS: Convert v4 into a module	2012-07-30 19:06:52 -04:00
dir.c	NFSv4: Add ACCESS operation to OPEN compound	2012-10-01 15:20:11 -07:00
direct.c	nfs: don't zero out the rest of the page if we hit the EOF on a DIO READ	2012-12-12 12:56:09 -05:00
dns_resolve.c	NFS: fix bug in legacy DNS resolver.	2012-10-31 16:25:59 -04:00
dns_resolve.h	NFS: DNS resolver cache per network namespace context introduced	2012-01-31 18:20:26 -05:00
file.c	NFS client updates for Linux 3.7	2012-10-10 23:52:35 +09:00
fscache-index.c	NFS: Use the inode->i_version to cache NFSv4 change attribute information	2011-10-18 09:14:34 -07:00
fscache.c	NFS: Don't pass mount data to nfs_fscache_get_super_cookie()	2012-05-14 17:30:26 -07:00
fscache.h	NFS: Fix a compile issue when CONFIG_NFS_FSCACHE was undefined	2012-05-16 10:24:20 -07:00
getroot.c	nfs: include internal.h in getroot.h	2012-10-02 08:17:04 -07:00
idmap.c	NFS: Set key construction data for the legacy upcall	2012-10-02 13:04:09 -07:00
inode.c	NFS: Remove BUG_ON()s in the fs/nfs/inode.c	2012-11-04 14:43:39 -05:00
internal.h	NFSv4: Simplify the NFSv4/v4.1 synchronous call switch	2012-12-06 00:30:49 +01:00
iostat.h	NFS: Squelch compiler warning in nfs_add_server_stats()	2010-05-14 15:09:31 -04:00
Kconfig	NFSv4.1: Remove the dependency on CONFIG_EXPERIMENTAL	2012-10-03 10:54:50 -07:00
Makefile	NFSv4.1: Cleanup move session slot management to fs/nfs/nfs4session.c	2012-12-06 00:30:45 +01:00
mount_clnt.c	NFS: Remove the BUG_ON() in the mount code	2012-11-04 14:43:39 -05:00
namespace.c	nfs: Show original device name verbatim in /proc/*/mount{s,info}	2012-10-31 16:26:26 -04:00
netns.h	nfs: include NFSv4 header in netns.h	2012-10-02 08:17:02 -07:00
nfs2super.c	NFS: Convert v2 into a module	2012-07-30 19:06:41 -04:00
nfs2xdr.c	NFS: Remove asserts from the NFS XDR code	2012-11-04 14:43:38 -05:00
nfs3acl.c	userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr	2012-09-18 01:01:35 -07:00
nfs3client.c	NFS: Only initialize the ACL client in the v3 case	2012-07-30 19:05:54 -04:00
nfs3proc.c	NFS: Fix the initialisation of the readdir 'cookieverf' array	2012-09-04 14:52:42 -04:00
nfs3super.c	NFS: Convert v3 into a module	2012-07-30 19:06:46 -04:00
nfs3xdr.c	NFS: Remove asserts from the NFS XDR code	2012-11-04 14:43:38 -05:00
nfs4_fs.h	Merge branch 'bugfixes' into nfs-for-next	2012-12-11 09:16:26 -05:00
nfs4client.c	NFSv4.1: Cleanup move session slot management to fs/nfs/nfs4session.c	2012-12-06 00:30:45 +01:00
nfs4file.c	NFSv4: Get rid of unnecessary BUG_ON()s	2012-11-04 14:43:39 -05:00
nfs4filelayout.c	NFSv4.1: Simplify the sequence setup	2012-12-06 00:30:48 +01:00
nfs4filelayout.h	NFSv4.1: Kill nfs4_ds_disconnect()	2012-10-15 10:49:42 -04:00
nfs4filelayoutdev.c	NFSv4.1: Cleanup move session slot management to fs/nfs/nfs4session.c	2012-12-06 00:30:45 +01:00
nfs4getroot.c	NFSv4: fs/nfs/nfs4getroot.c needs to include "internal.h"	2012-10-16 12:37:59 -04:00
nfs4namespace.c	nfs: Show original device name verbatim in /proc/*/mount{s,info}	2012-10-31 16:26:26 -04:00
nfs4proc.c	NFSv4.1: Handle NFS4ERR_BADSLOT errors correctly	2012-12-11 10:31:12 -05:00
nfs4renewd.c	workqueue: use mod_delayed_work() instead of cancel + queue	2012-08-13 16:27:37 -07:00
nfs4session.c	NFSv4.1: Be conservative about the client highest slotid	2012-12-11 12:29:10 -05:00
nfs4session.h	NFSv4.1: Try to eliminate outliers when updating target_highest_slotid	2012-12-06 00:30:53 +01:00
nfs4state.c	NFSv4.1: Ensure smooth handover of slots from one task to the next waiting	2012-12-06 00:30:52 +01:00
nfs4super.c	NFS: Fix a regression when loading the NFS v4 module	2012-08-16 16:15:49 -04:00
nfs4sysctl.c	nfs: include nfs4_fh.h in nfs4sysctl.c	2012-10-02 08:17:03 -07:00
nfs4xdr.c	Merge branch 'bugfixes' into nfs-for-next	2012-12-11 09:16:26 -05:00
nfs.h	NFS: Convert v4 into a module	2012-07-30 19:06:52 -04:00
nfsroot.c	SUNRPC/NFS: Add Kbuild dependencies for NFS_DEBUG/RPC_DEBUG	2012-03-20 13:08:26 -04:00
pagelist.c	NFS: Clean up helper function nfs4_select_rw_stateid()	2012-09-28 16:03:04 -04:00
pnfs_dev.c	NFSv4.1: pNFS data servers may be temporarily offline	2012-09-28 16:03:09 -04:00
pnfs.c	NFSv4.1: Remove assertion BUG_ON()s from the files and generic layout code	2012-11-04 14:43:39 -05:00
pnfs.h	NFSv4.1: Do not call pnfs_return_layout() from an rpciod context	2012-10-15 10:49:43 -04:00
proc.c	NFS: Only initialize the ACL client in the v3 case	2012-07-30 19:05:54 -04:00
read.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-07-31 19:25:39 -07:00
super.c	NFSv4.1: Move slot table and session struct definitions to nfs4session.h	2012-12-06 00:30:46 +01:00
symlink.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
sysctl.c	NFS: Initialize v4 sysctls from nfs_init_v4()	2012-07-17 13:33:18 -04:00
unlink.c	NFS: add nfs_sb_deactive_async to avoid deadlock	2012-10-31 16:26:26 -04:00
write.c	Merge branch 'bugfixes' into nfs-for-next	2012-12-11 09:16:26 -05:00