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Thiago Rafael Becker c63433a09d cifs: sanitize multiple delimiters in prepath 
commit a31080899d upstream.

mount.cifs can pass a device with multiple delimiters in it. This will
cause rename(2) to fail with ENOENT.

V2:
  - Make sanitize_path more readable.
  - Fix multiple delimiters between UNC and prepath.
  - Avoid a memory leak if a bad user starts putting a lot of delimiters
    in the path on purpose.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=2031200
Fixes: 24e0a1eff9 ("cifs: switch to new mount api")
Cc: stable@vger.kernel.org # 5.11+
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Thiago Rafael Becker <trbecker@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-22 09:32:48 +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: nosharesock should not share socket with future sessions
2021-12-01 09:04:55 +01:00
cifs_debug.h
cifs: use SPDX-Licence-Identifier
2021-06-20 21:28:17 -05:00
cifs_dfs_ref.c
cifs: Do not use the original cruid when following DFS links for multiuser mounts
2021-07-14 10:06:33 -05:00
cifs_fs_sb.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
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: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
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
…
cifs_uniupr.h
…
cifsacl.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
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: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsfs.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsglob.h
cifs: nosharesock should not share socket with future sessions
2021-12-01 09:04:55 +01:00
cifspdu.h
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
cifsproto.h
cifs: Deferred close performance improvements
2021-09-17 16:39:53 -05:00
cifsroot.c
cifs: Standardize logging output
2020-06-01 00:10:18 -05:00
cifssmb.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
connect.c
cifs: nosharesock should be set on new server
2021-12-01 09:04:56 +01:00
dfs_cache.c
cifs: support share failover when remounting
2021-07-22 11:43:23 -05:00
dfs_cache.h
cifs: support share failover when remounting
2021-07-22 11:43:23 -05:00
dir.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
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
smb3: do not error on fsync when readonly
2021-11-18 19:17:13 +01:00
fs_context.c
cifs: sanitize multiple delimiters in prepath
2021-12-22 09:32:48 +01:00
fs_context.h
cifs: To match file servers, make sure the server hostname matches
2021-11-18 19:16:06 +01:00
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
cifs: Deferred close performance improvements
2021-09-17 16:39:53 -05:00
ioctl.c
cifs: fix incorrect kernel doc comments
2021-09-13 18:29:46 -05:00
Kconfig
cifs: create a MD4 module and switch cifs.ko to use it
2021-08-25 15:48:00 -05:00
link.c
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
Makefile
cifs: decoding negTokenInit with generic ASN1 decoder
2021-06-20 21:28:17 -05:00
misc.c
smb3: correct server pointer dereferencing check to be more consistent
2021-09-23 21:12:23 -05:00
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: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smb1ops.c
cifs: constify path argument of ->make_node()
2021-04-25 16:28:23 -05:00
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: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
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
cifs: properly invalidate cached root handle when closing it
2021-09-09 17:34:38 -05:00
smb2pdu.c
smb3: correct smb3 ACL security descriptor
2021-09-23 16:17:07 -05:00
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: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
smbdirect.c
smbdirect: missing rc checks while waiting for rdma events
2021-06-22 12:08:32 -05:00
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: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00
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
cifs: remove pathname for file from SPDX header
2021-09-13 14:51:10 -05:00