linux_dsm_epyc7002/fs/cifs
Al Viro 378ff1a53b fix deadlock in cifs_ioctl_clone()
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().

Cc: stable@vger.kernel.org @ 3.13+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-01-18 23:49:26 -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: convert printk(LEVEL...) to pr_<level> 2014-12-07 22:48:07 -06:00
cifs_debug.h cifs: convert printk(LEVEL...) to pr_<level> 2014-12-07 22:48:07 -06:00
cifs_dfs_ref.c cifs: replace strnicmp with strncasecmp 2014-10-14 02:18:24 +02:00
cifs_fs_sb.h Allow conversion of characters in Mac remap range. Part 1 2014-10-16 15:20:20 -05:00
cifs_spnego.c KEYS: Remove key_type::match in favour of overriding default by match_preparse 2014-09-16 17:36:06 +01:00
cifs_spnego.h [CIFS] Rename three structures to avoid camel case 2011-05-27 04:34:02 +00:00
cifs_unicode.c Remap reserved posix characters by default (part 3/3) 2014-10-16 15:20:20 -05:00
cifs_unicode.h Remap reserved posix characters by default (part 3/3) 2014-10-16 15:20:20 -05:00
cifs_uniupr.h cifs: correction of unicode header files 2010-08-20 00:46:42 +00:00
cifsacl.c fs/cifs: remove obsolete __constant 2014-12-10 17:41:02 -08:00
cifsacl.h cifs: fix SID binary to string conversion 2012-12-11 11:48:49 -06:00
cifsencrypt.c Allow conversion of characters in Mac remap range. Part 1 2014-10-16 15:20:20 -05:00
cifsfs.c cifs: get rid of ->f_path.dentry->d_sb uses, add a new helper 2014-11-19 13:01:22 -05:00
cifsfs.h Update modinfo cifs version for cifs.ko 2014-12-07 22:17:19 -06:00
cifsglob.h Convert MessageID in smb2_hdr to LE 2014-12-14 14:55:45 -06:00
cifspdu.h Add missing definitions for CIFS File System Attributes 2014-08-12 23:47:14 -05:00
cifsproto.h CIFS: Use multicredits for SMB 2.1/3 writes 2014-08-02 01:23:03 -05:00
cifssmb.c fs/cifs: remove obsolete __constant 2014-12-10 17:41:02 -08:00
connect.c cifs: convert printk(LEVEL...) to pr_<level> 2014-12-07 22:48:07 -06:00
dir.c Allow mknod and mkfifo on SMB2/SMB3 mounts 2014-10-16 15:20:19 -05:00
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 Merge branch 'akpm' (patchbomb from Andrew) 2014-12-10 18:34:42 -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 move d_rcu from overlapping d_child to overlapping d_alias 2014-11-03 15:20:29 -05:00
ioctl.c fix deadlock in cifs_ioctl_clone() 2015-01-18 23:49:26 -05:00
Kconfig Clarify Kconfig help text for CIFS and SMB2/SMB3 2014-08-25 17:01:05 -05:00
link.c [CIFS] Remove obsolete comment 2014-10-17 17:17:12 -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
misc.c cifs: convert to print_hex_dump() instead of custom implementation 2014-12-07 22:48:01 -06:00
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: Add session setup/logoff capability for SMB2 2012-07-24 21:54:57 +04:00
readdir.c cifs: make new inode cache when file type is different 2014-12-22 14:16:21 -06:00
rfc1002pdu.h [CIFS] whitespace cleanup 2007-06-05 18:30:44 +00:00
sess.c Merge branch 'akpm' (patchbomb from Andrew) 2014-12-10 18:34:42 -08:00
smb1ops.c Remap reserved posix characters by default (part 3/3) 2014-10-16 15:20:20 -05:00
smb2file.c fs/cifs/smb2file.c: replace count*size kzalloc by kcalloc 2014-12-10 17:41:02 -08:00
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 2014-08-25 16:45:17 -05:00
smb2maperror.c Fix problem recognizing symlinks 2014-10-02 14:10:04 -05:00
smb2misc.c Convert MessageID in smb2_hdr to LE 2014-12-14 14:55:45 -06:00
smb2ops.c Convert MessageID in smb2_hdr to LE 2014-12-14 14:55:45 -06:00
smb2pdu.c Merge branch 'akpm' (patchbomb from Andrew) 2014-12-10 18:34:42 -08:00
smb2pdu.h Convert MessageID in smb2_hdr to LE 2014-12-14 14:55:45 -06:00
smb2proto.h mfsymlinks support for SMB2.1/SMB3. Part 2 query symlink 2014-10-16 15:20:20 -05:00
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 Remap reserved posix characters by default (part 3/3) 2014-10-16 15:20:20 -05:00
smberr.h cifs: map NT_STATUS_ERROR_WRITE_PROTECTED to -EROFS 2010-08-02 12:40:40 +00:00
smbfsctl.h enable fallocate punch hole ("fallocate -p") for SMB3 2014-08-17 18:12:38 -05:00
transport.c cifs: convert printk(LEVEL...) to pr_<level> 2014-12-07 22:48:07 -06:00
winucase.c [CIFS] quiet sparse compile warning 2013-09-08 14:54:24 -05:00
xattr.c Remap reserved posix characters by default (part 3/3) 2014-10-16 15:20:20 -05:00