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error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
lib/util/safe_string.h is similar to source3/include/safe_string.h, but
the former has fewer checks. It is missing bcopy, strcasecmp, and
strncasecmp.
Add the missing elements to lib/util/safe_string.h remove the other
safe_string.h which is in the source3-specific path. To accomodate
existing uses of str(n?)casecmp, add #undef lines to source files where
they are used.
Signed-off-by: Matthew DeVore <matvore@google.com>
Reviewed-by: David Mulder <dmulder@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Aug 28 02:18:40 UTC 2020 on sn-devel-184
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14418
Signed-off-by: Mathieu Parent <math.parent@gmail.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Aug 25 04:23:19 UTC 2020 on sn-devel-184
Otherwise a malformed control with unexpected NULL data will segfault
ldb_control_to_string(), though this is not very likely to affect
anyone in practice as converting controls to strings is rarely
necessary. If it happens at all in Samba it is in Python code.
Found by Honggfuzz using fuzz_ldb_parse_control.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Douglas Bagnall <dbagnall@samba.org>
Autobuild-Date(master): Wed Jul 29 04:43:23 UTC 2020 on sn-devel-184
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.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14364
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Fix regression introduced by commit ce2bf5c72b
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
We won't get NULL data over ldap, but it can be set via 'local_oid:'.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Limit the number of nested conditionals allowed by ldb_parse tree to
128, to avoid potential stack overflow issues.
Credit Oss-Fuzz
REF: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19508
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Gary Lockyer <gary@samba.org>
Autobuild-Date(master): Sun May 10 23:21:08 UTC 2020 on sn-devel-184
We want to keep going down the module stack, and not start from the top again.
ASQ is above the ACL modules, but below paged_results and we do not wish to
re-trigger that work.
Thanks to Andrei Popa <andrei.popa@next-gen.ro> for finding,
reporting and working with us to diagnose this issue!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14331
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Initilalise "stale" to zero before passing a pointer to it to
mdb_reader_check.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Apr 7 12:29:00 UTC 2020 on sn-devel-184
In use process failures and Bind9 shut downs leave stale entries in the
lmdb reader table. This can result in lmdb filling it's database file, as
the free list can not be reclaimed due to the stale reader.
In this fix we call mdb_reader_check at the start of each transaction,
to free any stale readers. As the default maximum number of readers is
127, this should not impact on performance to any great extent.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14330
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 Mar 31 01:26:07 UTC 2020 on sn-devel-184
Fix indentation of list members and fix lines > 79 characters to remove
PEP8 warnings.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Add cmocka tests to confirm lmdb's handling of the free list.
As a result of lmdb's MVCC (Multiversion Concurrency Control) long
running read transactions or stale readers (read transactions where the
process exited without ending the transaction) can cause the database to
run out of space.
Items in the free list are only reused when they would not be visible in
a read transaction. So long running read transactions prevent entries
in the free list being reused, and the database can run out of space.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
ldb* tools, when passed a raw filename assume tdb://
By default, ldb_tdb will call tdb with O_CREAT.
TDB, when passed O_CREAT and a not-tdb file, will wipe the file.
This means that if you run ldbedit <path to mdb-format-ldb file> the file
will be wiped, which is unexpected. I noticed this while trying to
corrupt a sam.ldb backend file (for testing), but instead I wiped it!
Ideally tdb would not do that, but the behaviour has been this way for
decades. Ideally ldb would have had a "create db" command, but this
has been the job of ldbadd for over a decade.
So this just blunts the knife for ldbedit.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14302
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This avoids using "ldb" as the memory context in most cases, and may avoid
a long-term memory leak if future changes cause dn_key not to be freed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14299
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
We avoid bare if conditions in Samba.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14299
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
We need to ensure we TALLOC_FREE(tmp_ctx) in every error exit.
Reported by Alex Kolesnik, ABISoft Ltd., www.abisoft.biz. Thanks!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14299
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Wed Feb 26 23:11:39 UTC 2020 on sn-devel-184
* Bug 14270:
Samba 4.11 and later give incorrect results for SCOPE_ONE searches
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(master): Tue Feb 25 12:59:02 UTC 2020 on sn-devel-184
This changes the LDB behaviour in the combination of a SCOPE_ONE search and
an index returning less than 10 results.
After b6b5b5fe35 the list->strict flag
became set to false in all cases, rather than being left to the
value set by the caller.
This changes the ldb_kv_index_dn_one() code to force strict
mode on success instead.
Thanks to Marcus Granér, ICEYE Oy for reporting.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14270
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
TALLOC_FREE the ldb_control allocated in ldb_parse_control_from_string
when none of the cases match.
Credit to OSS-Fuzz
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: David Disseldorp <ddiss@samba.org>
This fix the following build failures:
[2466/3864] Linking bin/default/lib/ldb/ldbmodify
In file included from /home/buildroot/autobuild/instance-0/output-1/host/opt/ext-toolchain/lib/gcc/mips64el-buildroot-linux-uclibc/5.5.0/include/stdint.h:9:0,
from ../../lib/tevent/tevent.h:31,
from ../../lib/ldb/include/ldb.h:51,
from ../../lib/ldb/tests/test_ldb_dn.c:25:
/home/buildroot/autobuild/instance-0/output-1/host/mips64el-buildroot-linux-uclibc/sysroot/usr/include/stdint.h:122:27: error: conflicting types for 'uintptr_t'
typedef unsigned long int uintptr_t;
^
In file included from ../../lib/ldb/tests/test_ldb_dn.c:23:0:
/home/buildroot/autobuild/instance-0/output-1/host/mips64el-buildroot-linux-uclibc/sysroot/usr/include/cmocka.h:132:28: note: previous declaration of 'uintptr_t' was here
typedef unsigned int uintptr_t;
^
In file included from /home/buildroot/autobuild/instance-0/output-1/host/opt/ext-toolchain/lib/gcc/mips64el-buildroot-linux-uclibc/5.5.0/include/stdint.h:9:0,
from ../../lib/tevent/tevent.h:31,
from ../../lib/ldb/tests/ldb_key_value_test.c:48:
/home/buildroot/autobuild/instance-0/output-1/host/mips64el-buildroot-linux-uclibc/sysroot/usr/include/stdint.h:122:27: error: conflicting types for 'uintptr_t'
typedef unsigned long int uintptr_t;
^
In file included from ../../lib/ldb/tests/ldb_key_value_test.c:43:0:
/home/buildroot/autobuild/instance-0/output-1/host/mips64el-buildroot-linux-uclibc/sysroot/usr/include/cmocka.h:132:28: note: previous declaration of 'uintptr_t' was here
typedef unsigned int uintptr_t;
^
Fixes:
- http://autobuild.buildroot.org/results/9507739b3d5d51024ee9c60b74c2f85d5004e7e2
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14218
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Reviewed-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Fix ASAN detected use after free. No security implications as the
talloc_free is followed immediately by the print statement and the value
printed is an integer
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Gary Lockyer <gary@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Dec 6 11:13:24 UTC 2019 on sn-devel-184
