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linux/fs/cifs
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Al Viro ba7883e486 fix deadlock in cifs_ioctl_clone() 
commit 378ff1a53b upstream.

It really needs to check that src is non-directory *and* use
{un,}lock_two_nodirectories().  As it is, it's trivial to cause
double-lock (ioctl(fd, CIFS_IOC_COPYCHUNK_FILE, fd)) and if the
last argument is an fd of directory, we are asking for trouble
by violating the locking order - all directories go before all
non-directories.  If the last argument is an fd of parent
directory, it has 50% odds of locking child before parent,
which will cause AB-BA deadlock if we race with unlink().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2015-01-29 17:40:49 -08:00
..
Kconfig [CIFS] SMB3 Signing enablement 2013-06-26 23:45:05 -05:00
Makefile cifs: add new case-insensitive conversion routines that are based on wchar_t's 2013-09-08 14:38:05 -05:00
asn1.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cache.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_debug.c cifs: try to handle the MUST SecurityFlags sanely 2013-06-26 17:31:55 -05:00
cifs_debug.h [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_dfs_ref.c cifs: fix composing of mount options for DFS referrals 2013-05-24 13:08:31 -05:00
cifs_fs_sb.h cifs: rcu-delay unload_nls() and freeing sbi 2013-10-24 23:43:27 -04:00
cifs_spnego.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
cifs_spnego.h [CIFS] Rename three structures to avoid camel case 2011-05-27 04:34:02 +00:00
cifs_unicode.c CIFS: fix mount failure with broken pathnames when smb3 mount with mapchars option 2014-07-09 11:18:27 -07:00
cifs_unicode.h cifs: add new case-insensitive conversion routines that are based on wchar_t's 2013-09-08 14:38:05 -05:00
cifs_uniupr.h cifs: correction of unicode header files 2010-08-20 00:46:42 +00:00
cifsacl.c [CIFS] Fix cifsacl mounts over smb2 to not call cifs 2014-02-10 14:08:16 -06:00
cifsacl.h cifs: fix SID binary to string conversion 2012-12-11 11:48:49 -06:00
cifsencrypt.c cifs: Use data structures to compute NTLMv2 response offsets 2013-11-11 16:58:11 -06:00
cifsfs.c cifs: Wait for writebacks to complete before attempting write. 2014-05-31 13:20:29 -07:00
cifsfs.h new helper: kfree_put_link() 2013-10-24 23:34:49 -04:00
cifsglob.h CIFS: Fix SMB2 readdir error handling 2014-10-09 12:21:27 -07:00
cifspdu.h cifs: Use data structures to compute NTLMv2 response offsets 2013-11-11 16:58:11 -06:00
cifsproto.h cifs: Wait for writebacks to complete before attempting write. 2014-05-31 13:20:29 -07:00
cifssmb.c [CIFS] clean up page array when uncached write send fails 2014-02-07 20:47:00 -06:00
connect.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-11-13 15:34:18 +09:00
dir.c [CIFS] Fix cifsacl mounts over smb2 to not call cifs 2014-02-10 14:08:16 -06:00
dns_resolve.c cifs: fix composing of mount options for DFS referrals 2013-05-24 13:08:31 -05:00
dns_resolve.h DNS: Separate out CIFS DNS Resolver code 2010-08-05 17:17:51 +00:00
export.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
file.c CIFS: Fix SMB2 readdir error handling 2014-10-09 12:21:27 -07:00
fscache.c NFS client updates for Linux 3.13 2013-11-08 05:57:46 +09:00
fscache.h CIFS: FS-Cache: Uncache unread pages in cifs_readpages() before freeing them 2013-09-18 10:17:03 -05:00
inode.c CIFS: Fix directory rename error 2014-09-17 09:19:27 -07:00
ioctl.c fix deadlock in cifs_ioctl_clone() 2015-01-29 17:40:49 -08:00
link.c SMB3: Fix oops when creating symlinks on smb3 2014-10-05 14:52:17 -07:00
misc.c cifs: Wait for writebacks to complete before attempting write. 2014-05-31 13:20:29 -07:00
netmisc.c cifs: change ERRnomem error mapping from ENOMEM to EREMOTEIO 2013-11-11 16:33:25 -06:00
nterr.c CIFS: Rename 7 error codes to NT_ style 2012-07-24 10:25:10 -05:00
nterr.h CIFS: Rename 7 error codes to NT_ style 2012-07-24 10:25:10 -05:00
ntlmssp.h CIFS: Add session setup/logoff capability for SMB2 2012-07-24 21:54:57 +04:00
readdir.c CIFS: Fix SMB2 readdir error handling 2014-10-09 12:21:27 -07:00
rfc1002pdu.h
…
sess.c cifs: Allow LANMAN auth method for servers supporting unencapsulated authentication methods 2013-10-07 09:57:11 -05:00
smb1ops.c CIFS: Fix SMB2 readdir error handling 2014-10-09 12:21:27 -07:00
smb2file.c CIFS: Fix wrong filename length for SMB2 2014-09-17 09:19:27 -07:00
smb2glob.h CIFS: Fix too big maxBuf size for SMB3 mounts 2014-02-14 16:50:47 -06:00
smb2inode.c CIFS: Fix wrong filename length for SMB2 2014-09-17 09:19:27 -07:00
smb2maperror.c CIFS: Fix SMB2 readdir error handling 2014-10-09 12:21:27 -07:00
smb2misc.c cifs: Wait for writebacks to complete before attempting write. 2014-05-31 13:20:29 -07:00
smb2ops.c CIFS: Fix SMB2 readdir error handling 2014-10-09 12:21:27 -07:00
smb2pdu.c CIFS: Fix SMB2 readdir error handling 2014-10-09 12:21:27 -07:00
smb2pdu.h Check SMB3 dialects against downgrade attacks 2013-11-19 23:52:54 -06:00
smb2proto.h [CIFS] clean up page array when uncached write send fails 2014-02-07 20:47:00 -06:00
smb2status.h CIFS: Add SMB2 status codes 2012-07-24 10:25:13 -05:00
smb2transport.c cifs: Send a logoff request before removing a smb session 2013-11-02 12:52:35 -05:00
smbencrypt.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
smberr.h
…
smbfsctl.h Check SMB3 dialects against downgrade attacks 2013-11-19 23:52:54 -06:00
transport.c cifs: sanity check length of data to send before sending 2014-02-23 20:55:07 -06:00
winucase.c [CIFS] quiet sparse compile warning 2013-09-08 14:54:24 -05:00
xattr.c retrieving CIFS ACLs when mounted with SMB2 fails dropping session 2014-02-07 11:08:17 -06:00