srvsvc: Move brl_get_locks() out of enum_file_fn()
With share_infos.tdb this is a locking order violation:
share_infos.tdb is level 4, brlock.tdb is level 2. Avoid this by first
walking the share_infos.tdb and then fetching all the brlock entries.
Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Thu May 14 22:06:32 UTC 2020 on sn-devel-184
Andrew Bartlett [Sun, 26 Jul 2020 23:37:29 +0000 (11:37 +1200)]
dbcheck: Allow a dangling forward link outside our known NCs
If we do not have the NC of the target object we can not be really sure
that the object is redundent and so we want to keep it for now
and not (as happened until now) break the dbcheck run made during the
replication stage of a "samba-tool domain backup rename".
Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
(cherry picked from commit 05228c4e07013c0e6f78f1330b3b787271282ca8)
Martin Schwenke [Mon, 6 Jul 2020 04:02:49 +0000 (14:02 +1000)]
ctdb-tests: Stop cat command failure from causing test failure
In certain circumstance, which aren't obvious, cat(1) can fail when
attempting to write a lot of data. This is due to something (probably
write(2)) returning EAGAIN.
Given that the -v option should only really be used for test
debugging, ignore the failure instead of spending time debugging it.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14446 Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com>
(cherry picked from commit 3ff8765d04c0fb950b7be4f9a049999aeb08223b)
s3:smbd: check for stale pid in delay_for_oplock_fn() when leases_db_get() fails
If leases_db_get() failed the leases_db record might have been cleaned up for
stale processes. Check if the share-mode-entry owner is stale in this case and
return ignore the entry. In any other case, log a debug messages and panic.
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Jul 7 02:47:46 UTC 2020 on sn-devel-184
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 217693682d5bbd0f2d6b5331f47b2a6348840898)
Ralph Boehme [Thu, 2 Jul 2020 12:47:12 +0000 (14:47 +0200)]
smbd: check for stale pid in get_lease_type()
If leases_db_get() failed the leases_db record might have been cleaned up for
stale processes. Check if the share-mode-entry owner is stale in this case and
return a 0 lease state. In any other case, log a debug messages and panic.
Signed-off-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Thu Jul 2 16:45:42 UTC 2020 on sn-devel-184
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 3f4a865821da27efbed4f7c38ad3efbcaae77a02)
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit e4328db1c94837a8ea5652971cea20055d3d24ff)
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit fbb8bbe1243eb2a0351dc2422929278f85a99e26)
Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Isaac Boukris <iboukris@samba.org>
(cherry picked from commit 71b7140fd0a33e7e8c5bf37c2897cea8224b3f01)
Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Alexander Bokovoy <ab@samba.org>
(cherry picked from commit 4c74db6978c682f8ba4e74a6ee8157cfcbb54971)
kdc:db-glue: ignore KRB5_PROG_ETYPE_NOSUPP also for Primary:Kerberos
Currently we only ignore KRB5_PROG_ETYPE_NOSUPP for
Primary:Kerberos-Newer-Keys, but not for Primary:Kerberos.
If a service account has msDS-SupportedEncryptionTypes: 31
and DES keys stored in Primary:Kerberos, we'll pass the
DES key to smb_krb5_keyblock_init_contents(), but may get
KRB5_PROG_ETYPE_NOSUPP.
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Isaac Boukris <iboukris@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Jul 28 14:04:26 UTC 2020 on sn-devel-184
Signed-off-by: Isaac Boukris <iboukris@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 07399831794e28c7c2cf0140d0f1d1b5538b5f60)
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit f3f330f61db983f6d213a097d9a4d91b1057ecb1)
Autobuild-User(v4-12-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-12-test): Thu Jul 9 13:04:14 UTC 2020 on sn-devel-184
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit b2b5ae090ee8796609eb0b5794bc4e62c24414ef)
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit bcba4bb210d9482be4c2c8dadfb5cc185046cbaa)
Signed-off-by: Andrew <awalker@ixsystems.com> Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit b5b801026edd3a8fd8d0ba1752e891453cf675c9)
The backend loglevel globally restricts logging of a particular backend. If this
value is smaller then any explicitly configured logging class, logging for this
class is skipped.
Eg, given the following logging config in smb.conf:
the default class loglevel of 1 (dbgc_config[DBGC_ALL].loglevel) will be
assigned to the backend loglevel.
So even though the logging class auth_json_audit is configured at level 3, this
doesn't become effective as the file backend drops all log messages with a level
below 1.
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Thu Jul 2 13:25:29 UTC 2020 on sn-devel-184
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 5aeaa6959da326095e98f0369b6d91dc5667415e)
Andrew Bartlett [Wed, 1 Jul 2020 02:31:54 +0000 (14:31 +1200)]
selftest: Run test of how userPassword / crypt() style passwords are stored in quicktest
This ensures that the crypt_r()/crypt_rn()/crypt() behaviour is tested in all
the samba-o3 builds and so is checked on RHEL7 in GitLab CI.
https://bugzilla.samba.org/show_bug.cgi?id=14424
Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Alexander Bokovoy <ab@samba.org>
(cherry picked from commit cabf873b75b1d4d456190358bc3ed051bca16978)
Autobuild-User(v4-12-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-12-test): Mon Jul 6 11:44:23 UTC 2020 on sn-devel-184
Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Alexander Bokovoy <ab@samba.org>
(cherry picked from commit 2c4ecf002a3fbbe8be061814468529c8bd6bb7aa)
Andrew Bartlett [Wed, 1 Jul 2020 02:35:39 +0000 (14:35 +1200)]
dsdb: Allow "password hash userPassword schemes = CryptSHA256" to work on RHEL7
On RHEL7 crypt_r() will set errno. This is a problem because the implementation of crypt_r()
in RHEL8 and elsewhere in libcrypt will return non-NULL but set errno on failure.
The workaround is to use crypt_rn(), provided only by libcrypt, which will return NULL
on failure, and so avoid checking errno in the non-failure case.
Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Alexander Bokovoy <ab@samba.org>
(cherry picked from commit 91453f110fa72062291eb59ad9d95fab0f423557)
Martin Schwenke [Fri, 5 Jun 2020 12:05:42 +0000 (22:05 +1000)]
util: Reallocate larger buffer if getpwuid_r() returns ERANGE
Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Volker Lendecke <vl@samba.org> Reviewed-by: Bjoern Jacke <bjacke@samba.org>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Tue Jun 9 21:07:24 UTC 2020 on sn-devel-184
Martin Schwenke [Tue, 9 Jun 2020 01:52:50 +0000 (11:52 +1000)]
util: Simplify input validation
It appears that snprintf(3) is being used for input validation.
However, this seems like overkill because it causes szPath to be
copied an extra time. The mostly likely protections being sought
here, according to https://cwe.mitre.org/data/definitions/20.html,
look to be DoS attacks involving CPU and memory usage. A simpler
check that uses strnlen(3) can mitigate against both of these and is
simpler.
Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Volker Lendecke <vl@samba.org> Reviewed-by: Bjoern Jacke <bjacke@samba.org>
(cherry picked from commit 922bce2668994dd2a5988c17060f977e9bb0c229)
Jeremy Allison [Tue, 30 Jun 2020 21:00:41 +0000 (14:00 -0700)]
s3: libsmb: Fix SMB2 client rename bug to a Windows server.
Fix bug where renaming to a target name of one
UCS2 character (name length 2 bytes) fails to
a Windows 10 SMB2 server.
The Windows 10 SMB2 server has a minimum length
for a SMB2_FILE_RENAME_INFORMATION buffer of
24 bytes. It returns NT_STATUS_INFO_LENGTH_MISMATCH
if the length is less. This isn't an alignment
issue as Windows client happily 2-byte align
for larget target name sizes. Also the Windows 10
SMB1 server doesn't have this restriction.
If the name length is too short, pad out with
zeros to 24 bytes.
Hard to add a test for this as we don't want to
add this silly restriction to the Samba server
as it would break all non-Windows clients.
Jeremy Allison [Mon, 1 Jun 2020 21:09:54 +0000 (14:09 -0700)]
s3: msdfs: Fix missing struct stat return on msdfs links by doing an LSTAT call.
This (unfortunately) re-exposes the fact the msdfs links are symlinks,
bit fixing this correctly requires a VFS ABI change which we can't
do for a released stream.
Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(v4-12-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-12-test): Fri Jun 26 11:18:10 UTC 2020 on sn-devel-184
Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Jun 24 20:14:15 UTC 2020 on sn-devel-184
Shows smbd panics if connection is terminated (torn down)
by killing the client with outstanding aio requests in the
queue. As we're closing smbd we should cope with this.
Karolin Seeger [Thu, 25 Jun 2020 10:57:04 +0000 (12:57 +0200)]
VERSION: Disable GIT_SNAPSHOT for the 4.12.4 release.
This is a security release in order to address the following CVEs:
o CVE-2020-10730: NULL pointer de-reference and use-after-free in Samba AD DC
LDAP Server with ASQ, VLV and paged_results.
o CVE-2020-10745: Parsing and packing of NBT and DNS packets can consume
excessive CPU.
o CVE-2020-10760: LDAP Use-after-free in Samba AD DC Global Catalog with
paged_results and VLV.
o CVE-2020-14303: Empty UDP packet DoS in Samba AD DC nbtd.
Andrew Bartlett [Fri, 5 Jun 2020 10:14:48 +0000 (22:14 +1200)]
CVE-2020-10760 dsdb: Ensure a proper talloc tree for saved controls
Otherwise a paged search on the GC port will fail as the ->data was
not kept around for the second page of searches.
An example command to produce this is
bin/ldbsearch --paged -H ldap://$SERVER:3268 -U$USERNAME%$PASSWORD
This shows up later in the partition module as:
ERROR: AddressSanitizer: heap-use-after-free on address 0x60b00151ef20 at pc 0x7fec3f801aac bp 0x7ffe8472c270 sp 0x7ffe8472c260
READ of size 4 at 0x60b00151ef20 thread T0 (ldap(0))
#0 0x7fec3f801aab in talloc_chunk_from_ptr ../../lib/talloc/talloc.c:526
#1 0x7fec3f801aab in __talloc_get_name ../../lib/talloc/talloc.c:1559
#2 0x7fec3f801aab in talloc_check_name ../../lib/talloc/talloc.c:1582
#3 0x7fec1b86b2e1 in partition_search ../../source4/dsdb/samdb/ldb_modules/partition.c:780
or
smb_panic_default: PANIC (pid 13287): Bad talloc magic value - unknown value
(from source4/dsdb/samdb/ldb_modules/partition.c:780)
Douglas Bagnall [Thu, 14 May 2020 22:52:45 +0000 (10:52 +1200)]
CVE-2020-10745: ndr/dns-utils: prepare for NBT compatibility
NBT has a funny thing where it sometimes needs to send a trailing dot as
part of the last component, because the string representation is a user
name. In DNS, "example.com", and "example.com." are the same, both
having three components ("example", "com", ""); in NBT, we want to treat
them differently, with the second form having the three components
("example", "com.", "").
Douglas Bagnall [Fri, 24 Apr 2020 23:10:18 +0000 (11:10 +1200)]
CVE-2020-10745: ndr_dns: do not allow consecutive dots
The empty subdomain component is reserved for the root domain, which we
should only (and always) see at the end of the list. That is, we expect
"example.com.", but never "example..com".
Douglas Bagnall [Fri, 24 Apr 2020 23:02:08 +0000 (11:02 +1200)]
CVE-2020-10745: ndr_dns: move ndr_push_dns_string core into sharable function
This is because ndr_nbt.c does almost exactly the same thing with
almost exactly the same code, and they both do it wrong. Soon they
will both be using the better version that this will become. Though in
this patch we just move the code, not fix it.
(backported from master commit)
[abartlet@samba.org: backported due to differences in pre-existing
tests - eg test_ndr - mentioned in wscript_build and tests.py]
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Gary Lockyer [Tue, 12 May 2020 22:56:56 +0000 (10:56 +1200)]
CVE-2020-10730: lib ldb: Check if ldb_lock_backend_callback called twice
Prevent use after free issues if ldb_lock_backend_callback is called
twice, usually due to ldb_module_done being called twice. This can happen if a
module ignores the return value from function a function that calls
ldb_module_done as part of it's error handling.
lldb_add_msg_attr() calls ldb_msg_add_empty() which, in turn, calls
calls _ldb_msg_add_el() which already increments msg->num_elements by one.
As a result, msg->num_elements is bigger than the actual number of
elements and any iteration over elements would step over elements array
boundary.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14413 Signed-off-by: Alexander Bokovoy <ab@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Jun 19 08:35:33 UTC 2020 on sn-devel-184
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14413 Signed-off-by: Alexander Bokovoy <ab@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 36bd6edd8a603f3aa34aff81c43ef26efd3ad4cf)
Signed-off-by: Isaac Boukris <iboukris@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon Jun 22 09:59:04 UTC 2020 on sn-devel-184
Isaac Boukris [Thu, 11 Jun 2020 13:51:27 +0000 (16:51 +0300)]
Properly handle msDS-AdditionalDnsHostName returned from Windows DC
Windows DC adds short names for each specified msDS-AdditionalDnsHostName
attribute, but these have a suffix of "\0$" and thus fail with
ldap_get_values(), use ldap_get_values_len() instead.
Gary Lockyer [Mon, 22 Jun 2020 01:42:56 +0000 (13:42 +1200)]
libcli ldap tests: remove use of zero length array
libcli/ldap/tests/ldap_message_test.c defines a zero length array
(uint8_t buf[0]), which is a GCC extension and breaks the build with
some strict compilers like xlc.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Jun 23 02:15:35 UTC 2020 on sn-devel-184
Signed-off-by: Isaac Boukris <iboukris@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri May 29 13:33:28 UTC 2020 on sn-devel-184
Autobuild-User(v4-12-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-12-test): Thu Jun 4 13:12:27 UTC 2020 on sn-devel-184
s3:libads: prefer ENCTYPE_AES256_CTS_HMAC_SHA1_96 in ads_keytab_add_entry()
This is currently not critical as we only use keytabs
only as acceptor, but in future we'll also use them
for kinit() and there we should prefer the newest type.
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
Jeremy Allison [Mon, 11 May 2020 22:58:27 +0000 (15:58 -0700)]
s3: libsmbclient: Finish unifing bad iconv behavior across CORE NT1 SMB2 protocols.
On bad name conversion, exit the directory listing with an error, but leave the
connection intact. We were already checking for finfo->name == NULL here,
but were ignoring it and not reporting an error.
Remove the knownfail.d/bad_iconv file as we now
behave the same across CORE/NT1/SMB2.
Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue May 12 21:32:44 UTC 2020 on sn-devel-184
Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 753115a8d19f6ac8cd28305748fc6d888679dccc)
Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit b10de0bb64fe022e6b066584013dfb0bdf2ade96)
projects / thirdparty / samba.git / log
