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linux/fs/cifs
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Paulo Alcantara e5071ae7d8 smb: client: fix potential NULL deref in parse_dfs_referrals() 
[ Upstream commit 92414333eb375ed64f4ae92d34d579e826936480 ]

If server returned no data for FSCTL_DFS_GET_REFERRALS, @dfs_rsp will
remain NULL and then parse_dfs_referrals() will dereference it.

Fix this by returning -EIO when no output data is returned.

Besides, we can't fix it in SMB2_ioctl() as some FSCTLs are allowed to
return no data as per MS-SMB2 2.2.32.

Fixes: 9d49640a21bf ("CIFS: implement get_dfs_refer for SMB2+")
Cc: stable@vger.kernel.org
Reported-by: Robert Morris <rtm@csail.mit.edu>
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-13 18:36:50 +01:00
..
asn1.c
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
cache.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifs_debug.c
cifs: print session id while listing open files
2023-03-30 12:47:55 +02:00
cifs_debug.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_dfs_ref.c
cifs: use fs_context for automounts
2023-08-03 10:22:29 +02:00
cifs_fs_sb.h
cifs: support nested dfs links over reconnect
2022-12-02 17:40:59 +01:00
cifs_ioctl.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifs_spnego_negtokeninit.asn1
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
cifs_spnego.c
cifs: spnego: add ';' in HOST_KEY_LEN
2023-11-28 16:56:25 +00:00
cifs_spnego.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifs_swn.c
cifs: remove support for NTLM and weaker authentication algorithms
2021-08-25 15:47:06 -05:00
cifs_swn.h
cifs: simplify SWN code with dummy funcs instead of ifdefs
2021-04-25 16:28:22 -05:00
cifs_unicode.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifs_unicode.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
cifs_uniupr.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
cifsacl.c
cifs: modefromsids must add an ACE for authenticated users
2022-03-08 19:12:30 +01:00
cifsacl.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsencrypt.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsfs.c
cifs: Fix non-availability of dedup breaking generic/304
2023-12-13 18:36:50 +01:00
cifsfs.h
cifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL
2023-04-05 11:24:59 +02:00
cifsglob.h
SMB3: drop reference to cfile before sending oplock break
2023-05-24 17:36:54 +01:00
cifspdu.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsproto.h
cifs: fix oops during encryption
2023-01-12 11:58:41 +01:00
cifsroot.c
cifs: Standardize logging output
2020-06-01 00:10:18 -05:00
cifssmb.c
cifs: prevent infinite recursion in CIFSGetDFSRefer()
2023-04-05 11:24:58 +02:00
connect.c
smb3: fix problem remounting a share after shutdown
2023-05-17 11:50:23 +02:00
dfs_cache.c
cifs: fix return of uninitialized rc in dfs_cache_update_tgthint()
2023-02-06 07:59:00 +01:00
dfs_cache.h
cifs: support share failover when remounting
2021-07-22 11:43:23 -05:00
dir.c
cifs: Fix xid leak in cifs_create()
2022-10-29 10:12:56 +02:00
dns_resolve.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
dns_resolve.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
export.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
file.c
cifs: Release folio lock on fscache read hit.
2023-08-26 14:23:36 +02:00
fs_context.c
cifs: mapchars mount option ignored
2023-05-30 13:55:32 +01:00
fs_context.h
cifs: sanitize paths in cifs_update_super_prepath.
2023-04-13 16:48:24 +02:00
fscache.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
fscache.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
inode.c
smb3: correct places where ENOTSUPP is used instead of preferred EOPNOTSUPP
2023-10-06 13:18:17 +02:00
ioctl.c
cifs: Fix wrong return value checking when GETFLAGS
2022-11-26 09:24:41 +01:00
Kconfig
cifs: create a MD4 module and switch cifs.ko to use it
2021-08-25 15:48:00 -05:00
link.c
cifs: Fix uninitialized memory read for smb311 posix symlink create
2023-01-18 11:48:49 +01:00
Makefile
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
misc.c
SMB3: Close deferred file handles in case of handle lease break
2023-05-11 23:00:37 +09:00
netlink.c
cifs: Constify static struct genl_ops
2021-06-20 21:28:16 -05:00
netlink.h
cifs: Register generic netlink family
2020-12-14 09:16:22 -06:00
netmisc.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
nterr.c
…
nterr.h
…
ntlmssp.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
readdir.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
rfc1002pdu.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
sess.c
cifs: Fix xid leak in cifs_ses_add_channel()
2022-10-29 10:12:56 +02:00
smb1ops.c
SMB3: drop reference to cfile before sending oplock break
2023-05-24 17:36:54 +01:00
smb2file.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2glob.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2inode.c
cifs: Fix smb2_set_path_size()
2023-03-22 13:31:33 +01:00
smb2maperror.c
cifs: cifs_md4 convert to SPDX identifier
2021-08-25 15:51:52 -05:00
smb2misc.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2ops.c
smb: client: fix potential NULL deref in parse_dfs_referrals()
2023-12-13 18:36:50 +01:00
smb2pdu.c
cifs: do not include page data when checking signature
2023-01-24 07:22:46 +01:00
smb2pdu.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2proto.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2status.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb2transport.c
cifs: fix check of rc in function generate_smb3signingkey
2023-11-28 16:56:25 +00:00
smbdirect.c
cifs: Fix warning and UAF when destroy the MR list
2023-03-10 09:39:32 +01:00
smbdirect.h
cifs: smbd: Do not schedule work to send immediate packet on every receive
2020-04-07 12:41:16 -05:00
smbencrypt.c
cifs: rename cifs_common to smbfs_common
2021-09-08 23:59:26 -05:00
smberr.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
trace.c
…
trace.h
cifs: fix string declarations and assignments in tracepoints
2021-05-27 14:04:32 -05:00
transport.c
cifs: Move the in_send statistic to __smb_send_rqst()
2023-03-22 13:31:22 +01:00
unc.c
cifs: don't cargo-cult strndup()
2021-04-25 16:28:23 -05:00
winucase.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
xattr.c
smb3: fix caching of ctime on setxattr
2023-12-08 08:48:04 +01:00