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android_kernel_oneplus_msm8998/fs/cifs
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Rabin Vincent 920bba1092 cifs: initialize file_info_lock 
commit 81ddd8c0c5e1cb41184d66567140cb48c53eb3d1 upstream.

Reviewed-by: Jeff Layton <jlayton@redhat.com>

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: 3afca265b5f53a0 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-09 08:02:45 +01:00
..
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 Display number of credits available 2016-10-28 03:01:32 -04:00
cifs_debug.h lib: update single-char callers of strtobool() 2016-10-28 03:01:30 -04:00
cifs_dfs_ref.c Fix that several functions handle incorrect value of mapchars 2015-05-10 19:56:35 -05:00
cifs_fs_sb.h fs/cifs: make share unaccessible at root level mountable 2016-08-20 18:09:20 +02:00
cifs_ioctl.h Add way to query server fs info for smb3 2015-08-20 10:19:25 -05:00
cifs_spnego.c KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
cifs_spnego.h
cifs_unicode.c File names with trailing period or space need special case conversion 2016-07-27 09:47:39 -07:00
cifs_unicode.h File names with trailing period or space need special case conversion 2016-07-27 09:47:39 -07:00
cifs_uniupr.h
cifsacl.c KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
cifsacl.h cifs: fix SID binary to string conversion 2012-12-11 11:48:49 -06:00
cifsencrypt.c cifs: fix crash due to race in hmac(md5) handling 2016-08-20 18:09:20 +02:00
cifsfs.c SMB3: GUIDs should be constructed as random but valid uuids 2016-10-28 03:01:32 -04:00
cifsfs.h Fix cifs_uniqueid_to_ino_t() function for s390x 2016-03-09 15:34:50 -08:00
cifsglob.h CIFS: Fix a possible memory corruption during reconnect 2017-01-06 11:16:15 +01:00
cifspdu.h Add way to query server fs info for smb3 2015-08-20 10:19:25 -05:00
cifsproto.h CIFS: Fix a possible memory corruption during reconnect 2017-01-06 11:16:15 +01:00
cifssmb.c Clarify locking of cifs file and tcon structures and make more granular 2016-10-28 03:01:32 -04:00
connect.c CIFS: Fix a possible memory corruption during reconnect 2017-01-06 11:16:15 +01:00
dir.c cifs: Check for existing directory when opening file with O_CREAT 2016-08-20 18:09:20 +02:00
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 Clarify locking of cifs file and tcon structures and make more granular 2016-10-28 03:01:32 -04:00
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 fs/cifs: make share unaccessible at root level mountable 2016-08-20 18:09:20 +02:00
ioctl.c Allow copy offload (CopyChunk) across shares 2015-11-09 09:28:48 -06:00
Kconfig Allow parsing vers=3.11 on cifs mount 2015-06-27 20:23:32 -07:00
link.c Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-06-22 12:51:21 -07:00
Makefile cifs: add new case-insensitive conversion routines that are based on wchar_t's 2013-09-08 14:38:05 -05:00
misc.c Clarify locking of cifs file and tcon structures and make more granular 2016-10-28 03:01:32 -04:00
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 2016-07-27 09:47:39 -07:00
readdir.c cifs: initialize file_info_lock 2017-02-09 08:02:45 +01:00
rfc1002pdu.h
sess.c cifs: dynamic allocation of ntlmssp blob 2016-07-27 09:47:39 -07:00
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 2017-01-06 11:16:16 +01:00
smb2glob.h cifs: Limit the overall credit acquired 2016-10-28 03:01:32 -04:00
smb2inode.c Do not send SMB3 SET_INFO request if nothing is changing 2016-10-28 03:01:33 -04:00
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 2016-10-28 03:01:32 -04:00
smb2ops.c Cleanup missing frees on some ioctls 2016-10-28 03:01:33 -04:00
smb2pdu.c CIFS: Fix missing nls unload in smb2_reconnect() 2017-01-06 11:16:16 +01:00
smb2pdu.h Set previous session id correctly on SMB3 reconnect 2016-10-28 03:01:32 -04:00
smb2proto.h CIFS: Fix a possible memory corruption during reconnect 2017-01-06 11:16:15 +01:00
smb2status.h CIFS: Add SMB2 status codes 2012-07-24 10:25:13 -05:00
smb2transport.c Convert MessageID in smb2_hdr to LE 2014-12-14 14:55:45 -06:00
smbencrypt.c cifs: use memzero_explicit to clear stack buffer 2015-01-19 15:32:13 -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 cifs: fix race between call_async() and reconnect() 2016-02-25 12:01:17 -08:00
winucase.c [CIFS] quiet sparse compile warning 2013-09-08 14:54:24 -05:00
xattr.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00