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Rabin Vincent 81ddd8c0c5 cifs: initialize file_info_lock 
Reviewed-by: Jeff Layton <jlayton@redhat.com>
CC: Stable <stable@vger.kernel.org>

file_info_lock is not initalized in initiate_cifs_search(), leading to the
following splat after a simple "mount.cifs ... dir && ls dir/":

 BUG: spinlock bad magic on CPU#0, ls/486
  lock: 0xffff880009301110, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
 CPU: 0 PID: 486 Comm: ls Not tainted 4.9.0 #27
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
  ffffc900042f3db0 ffffffff81327533 0000000000000000 ffff880009301110
  ffffc900042f3dd0 ffffffff810baf75 ffff880009301110 ffffffff817ae077
  ffffc900042f3df0 ffffffff810baff6 ffff880009301110 ffff880008d69900
 Call Trace:
  [<ffffffff81327533>] dump_stack+0x65/0x92
  [<ffffffff810baf75>] spin_dump+0x85/0xe0
  [<ffffffff810baff6>] spin_bug+0x26/0x30
  [<ffffffff810bb159>] do_raw_spin_lock+0xe9/0x130
  [<ffffffff8159ad2f>] _raw_spin_lock+0x1f/0x30
  [<ffffffff8127e50d>] cifs_closedir+0x4d/0x100
  [<ffffffff81181cfd>] __fput+0x5d/0x160
  [<ffffffff81181e3e>] ____fput+0xe/0x10
  [<ffffffff8109410e>] task_work_run+0x7e/0xa0
  [<ffffffff81002512>] exit_to_usermode_loop+0x92/0xa0
  [<ffffffff810026f9>] syscall_return_slowpath+0x49/0x50
  [<ffffffff8159b484>] entry_SYSCALL_64_fastpath+0xa7/0xa9

Fixes: 3afca265b5 ("Clarify locking of cifs file and tcon structures and make more granular")
Signed-off-by: Rabin Vincent <rabinv@axis.com>
Signed-off-by: Steve French <smfrench@gmail.com>
 		2017-01-14 14:58:29 -06:00
..
Kconfig Allow parsing vers=3.11 on cifs mount 2015-06-27 20:23:32 -07:00
Makefile cifs: Switch to generic xattr handlers 2016-04-23 15:33:03 -04:00
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 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cifs_debug.h lib: update single-char callers of strtobool() 2016-03-17 15:09:34 -07:00
cifs_dfs_ref.c cifs: remove any preceding delimiter from prefix_path 2016-05-17 14:09:33 -05:00
cifs_fs_sb.h CIFS: Add new mount option to set owner uid and gid from special sids in acl 2016-10-14 14:22:01 -05:00
cifs_ioctl.h Enable previous version support 2016-10-13 19:48:11 -05:00
cifs_spnego.c cifs: Create dedicated keyring for spnego operations 2016-05-19 21:56:30 -05:00
cifs_spnego.h
…
cifs_unicode.c File names with trailing period or space need special case conversion 2016-06-24 12:05:52 -05:00
cifs_unicode.h File names with trailing period or space need special case conversion 2016-06-24 12:05:52 -05:00
cifs_uniupr.h
…
cifsacl.c CIFS: Retrieve uid and gid from special sid if enabled 2016-10-14 14:22:16 -05:00
cifsacl.h cifs: fix SID binary to string conversion 2012-12-11 11:48:49 -06:00
cifsencrypt.c Fix default behaviour for empty domains and add domainauto option 2016-12-15 01:42:38 -06:00
cifsfs.c Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6 2016-12-24 11:37:18 -08:00
cifsfs.h cifs: don't use ->d_time 2016-09-16 12:44:21 +02:00
cifsglob.h Fix default behaviour for empty domains and add domainauto option 2016-12-15 01:42:38 -06:00
cifspdu.h Add way to query server fs info for smb3 2015-08-20 10:19:25 -05:00
cifsproto.h cifs_get_root shouldn't use path with tree name 2016-12-15 01:42:54 -06:00
cifssmb.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
connect.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dir.c cifs_get_root shouldn't use path with tree name 2016-12-15 01:42:54 -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
…
export.c [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg 2013-05-04 22:17:23 -05:00
file.c CIFS: Fix a possible double locking of mutex during reconnect 2016-12-05 12:52:01 -08:00
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 Merge remote-tracking branch 'jk/vfs' into work.misc 2016-10-08 11:06:08 -04:00
ioctl.c CIFS: Decrease verbosity of ioctl call 2016-12-02 16:04:33 -08:00
link.c cifs: use %16phN for formatting md5 sum 2016-12-15 00:21:37 -06:00
misc.c Clarify locking of cifs file and tcon structures and make more granular 2016-10-12 12:08:32 -05:00
netmisc.c Fix signed/unsigned pointer warning 2014-12-14 14:55:57 -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: dynamic allocation of ntlmssp blob 2016-06-23 23:45:07 -05:00
readdir.c cifs: initialize file_info_lock 2017-01-14 14:58:29 -06:00
rfc1002pdu.h
…
sess.c cifs: check hash calculating succeeded 2016-06-23 23:45:17 -05:00
smb1ops.c Fix that several functions handle incorrect value of mapchars 2015-05-10 19:56:35 -05:00
smb2file.c CIFS: Fix a possible memory corruption in push locks 2016-12-05 11:08:55 -08:00
smb2glob.h SMB3: Add mount parameter to allow user to override max credits 2016-10-12 12:08:33 -05:00
smb2inode.c Do not send SMB3 SET_INFO request if nothing is changing 2016-10-13 19:46:51 -05:00
smb2maperror.c Fix problem recognizing symlinks 2014-10-02 14:10:04 -05:00
smb2misc.c Clarify locking of cifs file and tcon structures and make more granular 2016-10-12 12:08:32 -05:00
smb2ops.c Cleanup missing frees on some ioctls 2016-10-13 19:48:20 -05:00
smb2pdu.c CIFS: Fix a possible double locking of mutex during reconnect 2016-12-05 12:52:01 -08:00
smb2pdu.h CIFS: Fix a possible double locking of mutex during reconnect 2016-12-05 12:52:01 -08:00
smb2proto.h CIFS: Fix a possible memory corruption during reconnect 2016-12-05 12:08:33 -08:00
smb2status.h CIFS: Add SMB2 status codes 2012-07-24 10:25:13 -05:00
smb2transport.c cifs: merge the hash calculation helpers 2016-03-28 14:05:27 -04:00
smbencrypt.c cifs: Fix smbencrypt() to stop pointing a scatterlist at the stack 2016-12-14 01:44:16 -06:00
smberr.h
…
smbfsctl.h [SMB3] Send durable handle v2 contexts when use of persistent handles required 2015-11-03 09:26:27 -06:00
transport.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
winucase.c [CIFS] quiet sparse compile warning 2013-09-08 14:54:24 -05:00
xattr.c Add way to query creation time of file via cifs xattr 2016-10-12 12:08:31 -05:00