IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
We use ld.bfd for the coverage builds, rather than the faster ld.gold.
We run the oss-fuzz autobuild target on Ubuntu 16.04 to more closely
mirror the environment provided by the Google oss-fuzz build
container.
On Ubuntu 16.04, when linking with ld.bfd built binaries get a RPATH,
but builds in Ubuntu 18.04 and those using ld.gold get a RUNPATH.
Just convert them all to RUNPATH to make the check_build.sh test (run
by the oss-fuzz autobuild target) easier.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This ensures that LANG=en_US.UTF8 is set, which
Samba's build system needs to operate in UTF8 mode.
The change to use flex to generate code meant that this
difference between GitLab CI and oss-fuzz was exposed.
REF: https://github.com/google/oss-fuzz/pull/4366
Signed-off-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): Wed Aug 26 03:20:46 UTC 2020 on sn-devel-184
During a previous attempt to fix the LANG= issue I changed
the script invocation to be via a shell, so the set -x et al
ensures these are always in place and we fail fast
rather than failures only being detected by lack of output.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Add search request size limits to ldap_decode calls.
The ldap server uses the smb.conf variable
"ldap max search request size" which defaults to 250Kb.
For cldap the limit is hard coded as 4096.
Credit to OSS-Fuzz
REF: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20454
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14334
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Address sanitizer will object to a theoretically possible NULL dereference
so we can't ignore these checks in set-up.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Jan 17 14:33:18 UTC 2020 on sn-devel-184
We simply return 0 because failure here is not a problem with the code we
are actually trying to fuzz. Without this asan is unhappy.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
We want to ensure that parse_packet() can parse a packet without
crashing, and that that parsed packet won't cause trouble further down
the line.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Autobuild-User(master): Gary Lockyer <gary@samba.org>
Autobuild-Date(master): Wed Jan 15 21:24:31 UTC 2020 on sn-devel-184
We have had issues here in the past.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sun Jan 12 21:21:30 UTC 2020 on sn-devel-184
The fuzzer doesn't care and it slows things down
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We need to focus the fuzzing effort on reachable code, and these IDL
are just historical artifacts, many are entirely [todo] and have
no samba client nor server.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This still does not seem to be enough but it is one step towards a working
coverage build.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
An NDR pull of a function will fill in either the in. or out.
elements of this structure, but never both.
However, some structures have size_is() in the out. that reference
the in. elements. This is the reason for the --context-file option
in ndrdump.
We have a special handler in the fuzzing case embedded in the
pidl-generated output to cope with this, by filling in pointers
for elements declared [ref,in] but it relies on the in-side
(at least) of the buffer being zeroed.
So zero the buffer before we start. Sadly this means things
like valgrind can not find a use of uninitialised data, but that
is a price we have to pay.
Credit to OSS-Fuzz
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Found by the oss-fuzz CI tooling.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Dec 11 04:21:28 UTC 2019 on sn-devel-184
The advise is that a fuzz target should be as small as possible
so we split this up. Splitting up by function would build too
many fuzzers, but this should help a little.
See for example:
https://github.com/google/fuzzing/blob/master/docs/good-fuzz-target.md#large-apis
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@samba.org>
This helps ensure the build_samba.sh file keeps working and the fuzzers build
(because they are excluded from the main build).
This is not in the default autobuild because it uses too much
space on sn-devel (4GB).
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@samba.org>
This is used to test build.sh, part of the oss-fuzz integration, and so also that we
correctly build our fuzzers.
Signed-off-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 Dec 10 09:15:43 UTC 2019 on sn-devel-184
This saves space on the rackspace runners in particular.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Add handler for $SANITIZER in build.sh
This allows a build with the undefined behaviour sanitizer.
Otherwise we fail the oss-fuzz CI because the UBSan build links with ASan.
Once this in in then https://github.com/google/oss-fuzz/pull/3094
can be merged to oss-fuzz.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
We need to ship the stub build.sh in the oss-fuzz repo, not ours.
This is because otherwise the travis CI checks skip the build
(it thinks we are not set up yet, or have been disabled).
See https://github.com/google/oss-fuzz/pull/3094 for the PR
creating a similar file there. This is very similar to how
janus-gateway operates, so this is an accepted pattern.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
We should run build_samba.sh with -eux to ensure we exit on failure,
refuse to use an unset varible and print the commands we are running.
(The suggested build.sh on the oss-fuzz side uses -eu).
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
If you go:
$ ./lib/fuzzing/decode_ndr_X_crash -H HONGGFUZZ_REPORT.txt -f 'SIG[^V]' > ./crash.sh
you will get all the crashes and not the timeouts (which have SIGVTALARM).
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is helpful for ensuring the fuzzers still compile in autobuild as no
library support is required.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This also avoids tree being an unused variable.
This is similar to doing an ndr_push() in ndr_fuzz_X, it
catches some of the cases where the parse is successful but
the application code could misinterpret the structure.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This helps direct the fuzzer at a particular function that we are concerned about.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This reduces the binary size and shows that we are linked against the correct
ndr_table_ global variable. This might help the fuzzing engine know there
is not much more of the binary to find if unreachable code is not included.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
In theory, you should be able to run honggfuzz and go
$ lib/fuzzing/decode_ndr_X_crash -H HONGGFUZZ-REPORT.txt > crash-crash-crash.sh
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
ndrdump can now take base64 input directly.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This interprets a file that crashes an fuzz_ndr_X binary
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This NDR fuzzer links with each "interface" in the IDL files to
create avsingle binary. This tries to matches what the fuzzing
engines desire.
It started as a copy of ndrdump but very little of that remains
in place.
The fancy build rules try to avoid needing a lof of boilerplate
in the wscript_build files and ensure new fuzzers are generated
and run when new IDL is added automatically.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-programmed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Note that Samba has not been accepted yet, but will be soon once some requirements
are addressed per:
https://github.com/google/oss-fuzz/pull/2993
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Uri Simchoni <uri@samba.org>
Autobuild-User(master): Douglas Bagnall <dbagnall@samba.org>
Autobuild-Date(master): Thu Nov 21 00:45:33 UTC 2019 on sn-devel-184
This is an alternative to static linking as we do not have static source
libraries for all the things we depend on.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Uri Simchoni <uri@samba.org>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Uri Simchoni <uri@samba.org>
Google's oss-fuzz environment is Ubuntu 16.04 based so we can
just use the maintained bootstrap system rather than a manual
package list here that will get out of date.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Uri Simchoni <uri@samba.org>
Pair-programmed-by: Andrew Bartlett <abartlet@samba.org>
This makes local development of build_samba.sh easier as it will remain in the source tree.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Uri Simchoni <uri@samba.org>
We work hard to put the primary logic for oss-fuzz here, and
where possible into waf, so that only a tiny stub needs to
be maintained in the Google oss-fuzz repo.
This will be called by build.sh (not copied directly because
it is too easy to forget to copy in an updated version when
doing development in the docker image).
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Uri Simchoni <uri@samba.org>
This makes integration with oss-fuzz possible. Only the fuzzer binaries should be
linked with libFuzzer, not things like asn1_compile, so this can not be done via
the global ADDITIONAL_LDFLAGS.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Uri Simchoni <uri@samba.org>
This ensures that the binaries are the only binaries built
when configured for fuzzing.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Otherwise we have a memory leak and so fail the Google oss-fuzz check_build test.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Nov 18 21:02:52 UTC 2019 on sn-devel-184
