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linux/fs/cifs
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Joe Perches a14f1eb717 cifs: check kzalloc return 
commit 0544b324e6 upstream.

kzalloc can return NULL so an additional check is needed. While there
is a check for ret_buf there is no check for the allocation of
ret_buf->crfid.fid - this check is thus added. Both call-sites
of tconInfoAlloc() check for NULL return of tconInfoAlloc()
so returning NULL on failure of kzalloc() here seems appropriate.
As the kzalloc() is the only thing here that can fail it is
moved to the beginning so as not to initialize other resources
on failure of kzalloc.

Fixes: 3d4ef9a153 ("smb3: fix redundant opens on root")

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2019-01-16 22:03:22 +01:00
..
asn1.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
cache.c cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
cifs_debug.c smb3: allow more detailed protocol info on open files for debugging 2018-11-02 14:09:41 -05:00
cifs_debug.h cifs: minor clarification in comments 2018-10-23 21:16:05 -05:00
cifs_dfs_ref.c CIFS: make 'nodfs' mount opt a superblock flag 2018-10-23 21:16:05 -05:00
cifs_fs_sb.h CIFS: make 'nodfs' mount opt a superblock flag 2018-10-23 21:16:05 -05:00
cifs_ioctl.h cifs: add IOCTL for QUERY_INFO passthrough to userspace 2018-10-23 21:16:05 -05:00
cifs_spnego.c smb3: on kerberos mount if server doesn't specify auth type use krb5 2018-11-02 14:09:41 -05:00
cifs_spnego.h [CIFS] Rename three structures to avoid camel case 2011-05-27 04:34:02 +00:00
cifs_unicode.c fs/cifs: don't translate SFM_SLASH (U+F026) to backslash 2018-09-02 23:21:42 -05:00
cifs_unicode.h [SMB3] Remove ifdef since SMB3 (and later) now STRONGLY preferred 2017-07-08 18:57:07 -05:00
cifs_uniupr.h cifs: correction of unicode header files 2010-08-20 00:46:42 +00:00
cifsacl.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
cifsacl.h cifs: For SMB2 security informaion query, check for minimum sized security descriptor instead of sizeof FileAllInformation class 2018-06-04 19:19:24 -05:00
cifsencrypt.c cifs: Make sure all data pages are signed correctly 2018-08-07 14:15:41 -05:00
cifsfs.c cifs: don't dereference smb_file_target before null check 2018-11-02 14:09:42 -05:00
cifsfs.h CIFS: Add support for direct I/O write 2018-11-02 14:09:42 -05:00
cifsglob.h CIFS: Add support for direct I/O read 2018-11-02 14:09:41 -05:00
cifspdu.h smb3: missing defines and structs for reparse point handling 2018-11-02 14:09:41 -05:00
cifsproto.h cifs: OFD locks do not conflict with eachothers 2018-10-23 21:16:05 -05:00
cifssmb.c CIFS: pass page offsets on SMB1 read/write 2018-10-23 21:16:05 -05:00
connect.c Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-11-01 19:58:52 -07:00
dir.c cifs: Fix separator when building path from dentry 2018-12-06 02:20:17 -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 potential OOB access of lock element array 2019-01-16 22:03:22 +01:00
fscache.c cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
fscache.h cifs: use 64-bit timestamps for fscache 2018-08-07 14:15:41 -05:00
inode.c cifs: fix spelling mistake, EACCESS -> EACCES 2018-11-02 14:09:41 -05:00
ioctl.c cifs: add support for ioctl on directories 2018-10-23 21:16:05 -05:00
Kconfig cifs: In Kconfig CONFIG_CIFS_POSIX needs depends on legacy (insecure cifs) 2018-12-06 02:20:14 -06:00
link.c smb3: don't request leases in symlink creation and query 2018-08-07 14:15:57 -05:00
Makefile smb3: Add ftrace tracepoints for improved SMB3 debugging 2018-05-27 17:56:35 -05:00
misc.c cifs: check kzalloc return 2019-01-16 22:03:22 +01:00
netmisc.c cifs: use timespec64 internally 2018-08-07 14:15:41 -05:00
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: prevent integer overflow in nxt_dir_entry() 2018-09-12 09:27:57 -05:00
rfc1002pdu.h [CIFS] whitespace cleanup 2007-06-05 18:30:44 +00:00
sess.c cifs: check kmalloc before use 2018-08-23 15:10:49 -05:00
smb1ops.c cifs: simple stats should always be enabled 2018-08-07 14:20:22 -05:00
smb2file.c cifs: Fix potential OOB access of lock element array 2019-01-16 22:03:22 +01:00
smb2glob.h cifs: change SMB2_OP_RENAME and SMB2_OP_HARDLINK to use compounding 2018-10-23 21:16:04 -05:00
smb2inode.c smb3: Fix rmdir compounding regression to strict servers 2018-12-19 07:55:32 -06:00
smb2maperror.c CIFS: Fix error mapping for SMB2_LOCK command which caused OFD lock problem 2019-01-09 17:46:03 +01:00
smb2misc.c smb3: minor debugging clarifications in rfc1001 len processing 2018-09-02 23:21:42 -05:00
smb2ops.c smb3: fix large reads on encrypted connections 2019-01-09 17:46:03 +01:00
smb2pdu.c CIFS: Fix adjustment of credits for MTU requests 2019-01-16 22:03:21 +01:00
smb2pdu.h smb3: missing defines and structs for reparse point handling 2018-11-02 14:09:41 -05:00
smb2proto.h smb3: Fix rmdir compounding regression to strict servers 2018-12-19 07:55:32 -06:00
smb2status.h CIFS: Add SMB2 status codes 2012-07-24 10:25:13 -05:00
smb2transport.c CIFS: fix uninitialized ptr deref in smb2 signing 2018-08-07 14:30:59 -05:00
smbdirect.c Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-11-01 19:58:52 -07:00
smbdirect.h cifs: fix SMB1 breakage 2018-07-05 13:48:24 -05:00
smbencrypt.c CIFS: refactor crypto shash/sdesc allocation&free 2018-04-01 20:24:39 -05:00
smberr.h cifs: map NT_STATUS_ERROR_WRITE_PROTECTED to -EROFS 2010-08-02 12:40:40 +00:00
smbfsctl.h [SMB3] Send durable handle v2 contexts when use of persistent handles required 2015-11-03 09:26:27 -06:00
trace.c smb3: Add ftrace tracepoints for improved SMB3 debugging 2018-05-27 17:56:35 -05:00
trace.h smb3: add trace point for tree connection 2018-11-02 14:09:41 -05:00
transport.c CIFS: Fix credit computation for compounded requests 2019-01-16 22:03:21 +01:00
winucase.c [CIFS] quiet sparse compile warning 2013-09-08 14:54:24 -05:00
xattr.c smb3: create smb3 equivalent alias for cifs pseudo-xattrs 2018-08-10 18:46:58 -05:00