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[24.9.64.241]) by smtp.gmail.com with ESMTPSA id l4sm3424376ioa.9.2019.12.16.10.00.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 16 Dec 2019 10:00:52 -0800 (PST) To: torvalds@linux-foundation.org Cc: skhan@linuxfoundation.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Brendan Higgins From: Shuah Khan Subject: [GIT PULL] Kselftest fixes update for Linux 5.5-rc3 Message-ID: <57894f9b-3cd0-f42d-cdc2-e3b8cb7255ab@linuxfoundation.org> Date: Mon, 16 Dec 2019 11:00:51 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="------------0512B299E187455BF371CC22" Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------0512B299E187455BF371CC22 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi Linus, Please pull the following Kselftest update for Linux 5.5-rc3. This Kselftest fixes update for Linux 5.5-rc2 consists of -- ftrace and safesetid test fixes from Masami Hiramatsu -- Kunit fixes from Brendan Higgins, Iurii Zaikin, and Heidi Fahim -- Kselftest framework fixes from SeongJae Park and Michael Ellerman I was planning to send this for rc2 and ran into kernel.org outage and decided to wait on it. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit e42617b825f8073569da76dc4510bfa019b1c35a: Linux 5.5-rc1 (2019-12-08 14:57:55 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-5.5-rc2 for you to fetch changes up to 4eac734486fd431e0756cc5e929f140911a36a53: kselftest: Support old perl versions (2019-12-11 10:31:16 -0700) ---------------------------------------------------------------- linux-kselftest-5.5-rc2 This Kselftest fixes update for Linux 5.5-rc2 consists of -- ftrace and safesetid test fixes from Masami Hiramatsu -- Kunit fixes from Brendan Higgins, Iurii Zaikin, and Heidi Fahim -- Kselftest framework fixes from SeongJae Park and Michael Ellerman ---------------------------------------------------------------- Brendan Higgins (2): Documentation: kunit: fix typos and gramatical errors Documentation: kunit: add documentation for kunit_tool Heidi Fahim (1): kunit: testing kunit: Bug fix in test_run_timeout function Iurii Zaikin (1): fs/ext4/inode-test: Fix inode test on 32 bit platforms. Masami Hiramatsu (7): selftests/ftrace: Fix to check the existence of set_ftrace_filter selftests/ftrace: Fix ftrace test cases to check unsupported selftests/ftrace: Do not to use absolute debugfs path selftests/ftrace: Fix multiple kprobe testcase selftests: safesetid: Move link library to LDLIBS selftests: safesetid: Check the return value of setuid/setgid selftests: safesetid: Fix Makefile to set correct test program Michael Ellerman (1): selftests: Fix dangling documentation references to kselftest_module.sh SeongJae Park (2): kselftest/runner: Print new line in print of timeout log kselftest: Support old perl versions Documentation/dev-tools/kselftest.rst | 8 +-- Documentation/dev-tools/kunit/index.rst | 1 + Documentation/dev-tools/kunit/kunit-tool.rst | 57 ++++++++++++++++++++++ Documentation/dev-tools/kunit/start.rst | 13 +++-- Documentation/dev-tools/kunit/usage.rst | 24 ++++----- fs/ext4/inode-test.c | 2 +- tools/testing/kunit/kunit_tool_test.py | 2 +- .../ftrace/test.d/ftrace/func-filter-stacktrace.tc | 2 + .../selftests/ftrace/test.d/ftrace/func_cpumask.tc | 5 ++ tools/testing/selftests/ftrace/test.d/functions | 5 +- .../ftrace/test.d/kprobe/multiple_kprobes.tc | 6 +-- .../inter-event/trigger-action-hist-xfail.tc | 4 +- .../inter-event/trigger-onchange-action-hist.tc | 2 +- .../inter-event/trigger-snapshot-action-hist.tc | 4 +- tools/testing/selftests/kselftest/module.sh | 2 +- tools/testing/selftests/kselftest/prefix.pl | 1 + tools/testing/selftests/kselftest/runner.sh | 1 + tools/testing/selftests/safesetid/Makefile | 5 +- tools/testing/selftests/safesetid/safesetid-test.c | 15 ++++-- 19 files changed, 119 insertions(+), 40 deletions(-) create mode 100644 Documentation/dev-tools/kunit/kunit-tool.rst ---------------------------------------------------------------- --------------0512B299E187455BF371CC22 Content-Type: text/x-patch; charset=UTF-8; name="linux-kselftest-5.5-rc2.diff" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="linux-kselftest-5.5-rc2.diff" diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst index ecdfdc9d4b03..61ae13c44f91 100644 --- a/Documentation/dev-tools/kselftest.rst +++ b/Documentation/dev-tools/kselftest.rst @@ -203,12 +203,12 @@ Test Module Kselftest tests the kernel from userspace. Sometimes things need testing from within the kernel, one method of doing this is to create a test module. We can tie the module into the kselftest framework by -using a shell script test runner. ``kselftest_module.sh`` is designed +using a shell script test runner. ``kselftest/module.sh`` is designed to facilitate this process. There is also a header file provided to assist writing kernel modules that are for use with kselftest: - ``tools/testing/kselftest/kselftest_module.h`` -- ``tools/testing/kselftest/kselftest_module.sh`` +- ``tools/testing/kselftest/kselftest/module.sh`` How to use ---------- @@ -247,7 +247,7 @@ A bare bones test module might look like this: #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - #include "../tools/testing/selftests/kselftest_module.h" + #include "../tools/testing/selftests/kselftest/module.h" KSTM_MODULE_GLOBALS(); @@ -276,7 +276,7 @@ Example test script #!/bin/bash # SPDX-License-Identifier: GPL-2.0+ - $(dirname $0)/../kselftest_module.sh "foo" test_foo + $(dirname $0)/../kselftest/module.sh "foo" test_foo Test Harness diff --git a/Documentation/dev-tools/kunit/index.rst b/Documentation/dev-tools/kunit/index.rst index 26ffb46bdf99..c60d760a0eed 100644 --- a/Documentation/dev-tools/kunit/index.rst +++ b/Documentation/dev-tools/kunit/index.rst @@ -9,6 +9,7 @@ KUnit - Unit Testing for the Linux Kernel start usage + kunit-tool api/index faq diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst new file mode 100644 index 000000000000..50d46394e97e --- /dev/null +++ b/Documentation/dev-tools/kunit/kunit-tool.rst @@ -0,0 +1,57 @@ +.. SPDX-License-Identifier: GPL-2.0 + +================= +kunit_tool How-To +================= + +What is kunit_tool? +=================== + +kunit_tool is a script (``tools/testing/kunit/kunit.py``) that aids in building +the Linux kernel as UML (`User Mode Linux +`_), running KUnit tests, parsing +the test results and displaying them in a user friendly manner. + +What is a kunitconfig? +====================== + +It's just a defconfig that kunit_tool looks for in the base directory. +kunit_tool uses it to generate a .config as you might expect. In addition, it +verifies that the generated .config contains the CONFIG options in the +kunitconfig; the reason it does this is so that it is easy to be sure that a +CONFIG that enables a test actually ends up in the .config. + +How do I use kunit_tool? +======================== + +If a kunitconfig is present at the root directory, all you have to do is: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run + +However, you most likely want to use it with the following options: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` + +- ``--timeout`` sets a maximum amount of time to allow tests to run. +- ``--jobs`` sets the number of threads to use to build the kernel. + +If you just want to use the defconfig that ships with the kernel, you can +append the ``--defconfig`` flag as well: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` --defconfig + +.. note:: + This command is particularly helpful for getting started because it + just works. No kunitconfig needs to be present. + +For a list of all the flags supported by kunit_tool, you can run: + +.. code-block:: bash + + ./tools/testing/kunit/kunit.py run --help diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst index aeeddfafeea2..9d6db892c41c 100644 --- a/Documentation/dev-tools/kunit/start.rst +++ b/Documentation/dev-tools/kunit/start.rst @@ -19,11 +19,14 @@ The wrapper can be run with: .. code-block:: bash - ./tools/testing/kunit/kunit.py run + ./tools/testing/kunit/kunit.py run --defconfig + +For more information on this wrapper (also called kunit_tool) checkout the +:doc:`kunit-tool` page. Creating a kunitconfig ====================== -The Python script is a thin wrapper around Kbuild as such, it needs to be +The Python script is a thin wrapper around Kbuild. As such, it needs to be configured with a ``kunitconfig`` file. This file essentially contains the regular Kernel config, with the specific test targets as well. @@ -59,8 +62,8 @@ If everything worked correctly, you should see the following: followed by a list of tests that are run. All of them should be passing. .. note:: - Because it is building a lot of sources for the first time, the ``Building - kunit kernel`` step may take a while. + Because it is building a lot of sources for the first time, the + ``Building KUnit kernel`` step may take a while. Writing your first test ======================= @@ -159,7 +162,7 @@ Now you can run the test: .. code-block:: bash - ./tools/testing/kunit/kunit.py + ./tools/testing/kunit/kunit.py run You should see the following failure: diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst index c6e69634e274..b9a065ab681e 100644 --- a/Documentation/dev-tools/kunit/usage.rst +++ b/Documentation/dev-tools/kunit/usage.rst @@ -16,7 +16,7 @@ Organization of this document ============================= This document is organized into two main sections: Testing and Isolating -Behavior. The first covers what a unit test is and how to use KUnit to write +Behavior. The first covers what unit tests are and how to use KUnit to write them. The second covers how to use KUnit to isolate code and make it possible to unit test code that was otherwise un-unit-testable. @@ -174,13 +174,13 @@ Test Suites ~~~~~~~~~~~ Now obviously one unit test isn't very helpful; the power comes from having -many test cases covering all of your behaviors. Consequently it is common to -have many *similar* tests; in order to reduce duplication in these closely -related tests most unit testing frameworks provide the concept of a *test -suite*, in KUnit we call it a *test suite*; all it is is just a collection of -test cases for a unit of code with a set up function that gets invoked before -every test cases and then a tear down function that gets invoked after every -test case completes. +many test cases covering all of a unit's behaviors. Consequently it is common +to have many *similar* tests; in order to reduce duplication in these closely +related tests most unit testing frameworks - including KUnit - provide the +concept of a *test suite*. A *test suite* is just a collection of test cases +for a unit of code with a set up function that gets invoked before every test +case and then a tear down function that gets invoked after every test case +completes. Example: @@ -211,7 +211,7 @@ KUnit test framework. .. note:: A test case will only be run if it is associated with a test suite. -For a more information on these types of things see the :doc:`api/test`. +For more information on these types of things see the :doc:`api/test`. Isolating Behavior ================== @@ -338,7 +338,7 @@ We can easily test this code by *faking out* the underlying EEPROM: return count; } - ssize_t fake_eeprom_write(struct eeprom *this, size_t offset, const char *buffer, size_t count) + ssize_t fake_eeprom_write(struct eeprom *parent, size_t offset, const char *buffer, size_t count) { struct fake_eeprom *this = container_of(parent, struct fake_eeprom, parent); @@ -454,7 +454,7 @@ KUnit on non-UML architectures By default KUnit uses UML as a way to provide dependencies for code under test. Under most circumstances KUnit's usage of UML should be treated as an implementation detail of how KUnit works under the hood. Nevertheless, there -are instances where being able to run architecture specific code, or test +are instances where being able to run architecture specific code or test against real hardware is desirable. For these reasons KUnit supports running on other architectures. @@ -557,7 +557,7 @@ run your tests on your hardware setup just by compiling for your architecture. .. important:: Always prefer tests that run on UML to tests that only run under a particular architecture, and always prefer tests that run under QEMU or another easy - (and monitarily free) to obtain software environment to a specific piece of + (and monetarily free) to obtain software environment to a specific piece of hardware. Nevertheless, there are still valid reasons to write an architecture or hardware diff --git a/fs/ext4/inode-test.c b/fs/ext4/inode-test.c index 92a9da1774aa..bbce1c328d85 100644 --- a/fs/ext4/inode-test.c +++ b/fs/ext4/inode-test.c @@ -25,7 +25,7 @@ * For constructing the negative timestamp lower bound value. * binary: 10000000 00000000 00000000 00000000 */ -#define LOWER_MSB_1 (-0x80000000L) +#define LOWER_MSB_1 (-(UPPER_MSB_0) - 1L) /* avoid overflow */ /* * For constructing the negative timestamp upper bound value. * binary: 11111111 11111111 11111111 11111111 diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py index 4a12baa0cd4e..a2a8ea6beae3 100755 --- a/tools/testing/kunit/kunit_tool_test.py +++ b/tools/testing/kunit/kunit_tool_test.py @@ -199,7 +199,7 @@ class KUnitMainTest(unittest.TestCase): timeout = 3453 kunit.main(['run', '--timeout', str(timeout)], self.linux_source_mock) assert self.linux_source_mock.build_reconfig.call_count == 1 - self.linux_source_mock.run_kernel.assert_called_once_with(timeout=timeout) + self.linux_source_mock.run_kernel.assert_called_once_with(build_dir=None, timeout=timeout) self.print_mock.assert_any_call(StrContains('Testing complete.')) if __name__ == '__main__': diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc index 36fb59f886ea..1a52f2883fe0 100644 --- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc @@ -3,6 +3,8 @@ # description: ftrace - stacktrace filter command # flags: instance +[ ! -f set_ftrace_filter ] && exit_unsupported + echo _do_fork:stacktrace >> set_ftrace_filter grep -q "_do_fork:stacktrace:unlimited" set_ftrace_filter diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc index 86a1f07ef2ca..71fa3f49e35e 100644 --- a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc @@ -15,6 +15,11 @@ if [ $NP -eq 1 ] ;then exit_unresolved fi +if ! grep -q "function" available_tracers ; then + echo "Function trace is not enabled" + exit_unsupported +fi + ORIG_CPUMASK=`cat tracing_cpumask` do_reset() { diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index 86986c4bba54..5d4550591ff9 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -46,6 +46,9 @@ reset_events_filter() { # reset all current setting filters } reset_ftrace_filter() { # reset all triggers in set_ftrace_filter + if [ ! -f set_ftrace_filter ]; then + return 0 + fi echo > set_ftrace_filter grep -v '^#' set_ftrace_filter | while read t; do tr=`echo $t | cut -d: -f2` @@ -93,7 +96,7 @@ initialize_ftrace() { # Reset ftrace to initial-state disable_events [ -f set_event_pid ] && echo > set_event_pid [ -f set_ftrace_pid ] && echo > set_ftrace_pid - [ -f set_ftrace_filter ] && echo | tee set_ftrace_* + [ -f set_ftrace_notrace ] && echo > set_ftrace_notrace [ -f set_graph_function ] && echo | tee set_graph_* [ -f stack_trace_filter ] && echo > stack_trace_filter [ -f kprobe_events ] && echo > kprobe_events diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc index 5862eee91e1d..6e3dbe5f96b7 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc @@ -20,9 +20,9 @@ while read i; do test $N -eq 256 && break done -L=`wc -l kprobe_events` -if [ $L -ne $N ]; then - echo "The number of kprobes events ($L) is not $N" +L=`cat kprobe_events | wc -l` +if [ $L -ne 256 ]; then + echo "The number of kprobes events ($L) is not 256" exit_fail fi diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-action-hist-xfail.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-action-hist-xfail.tc index 1221240f8cf6..3f2aee115f6e 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-action-hist-xfail.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-action-hist-xfail.tc @@ -21,10 +21,10 @@ grep -q "snapshot()" README || exit_unsupported # version issue echo "Test expected snapshot action failure" -echo 'hist:keys=comm:onmatch(sched.sched_wakeup).snapshot()' >> /sys/kernel/debug/tracing/events/sched/sched_waking/trigger && exit_fail +echo 'hist:keys=comm:onmatch(sched.sched_wakeup).snapshot()' >> events/sched/sched_waking/trigger && exit_fail echo "Test expected save action failure" -echo 'hist:keys=comm:onmatch(sched.sched_wakeup).save(comm,prio)' >> /sys/kernel/debug/tracing/events/sched/sched_waking/trigger && exit_fail +echo 'hist:keys=comm:onmatch(sched.sched_wakeup).save(comm,prio)' >> events/sched/sched_waking/trigger && exit_fail exit_xfail diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc index 064a284e4e75..c80007aa9f86 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc @@ -16,7 +16,7 @@ grep -q "onchange(var)" README || exit_unsupported # version issue echo "Test onchange action" -echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio) if comm=="ping"' >> /sys/kernel/debug/tracing/events/sched/sched_waking/trigger +echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio) if comm=="ping"' >> events/sched/sched_waking/trigger ping $LOCALHOST -c 3 nice -n 1 ping $LOCALHOST -c 3 diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc index 18fff69fc433..f546c1b66a9b 100644 --- a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc +++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc @@ -23,9 +23,9 @@ grep -q "snapshot()" README || exit_unsupported # version issue echo "Test snapshot action" -echo 1 > /sys/kernel/debug/tracing/events/sched/enable +echo 1 > events/sched/enable -echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> /sys/kernel/debug/tracing/events/sched/sched_waking/trigger +echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> events/sched/sched_waking/trigger ping $LOCALHOST -c 3 nice -n 1 ping $LOCALHOST -c 3 diff --git a/tools/testing/selftests/kselftest/module.sh b/tools/testing/selftests/kselftest/module.sh index 18e1c7992d30..fb4733faff12 100755 --- a/tools/testing/selftests/kselftest/module.sh +++ b/tools/testing/selftests/kselftest/module.sh @@ -9,7 +9,7 @@ # # #!/bin/sh # SPDX-License-Identifier: GPL-2.0+ -# $(dirname $0)/../kselftest_module.sh "description" module_name +# $(dirname $0)/../kselftest/module.sh "description" module_name # # Example: tools/testing/selftests/lib/printf.sh diff --git a/tools/testing/selftests/kselftest/prefix.pl b/tools/testing/selftests/kselftest/prefix.pl index ec7e48118183..31f7c2a0a8bd 100755 --- a/tools/testing/selftests/kselftest/prefix.pl +++ b/tools/testing/selftests/kselftest/prefix.pl @@ -3,6 +3,7 @@ # Prefix all lines with "# ", unbuffered. Command being piped in may need # to have unbuffering forced with "stdbuf -i0 -o0 -e0 $cmd". use strict; +use IO::Handle; binmode STDIN; binmode STDOUT; diff --git a/tools/testing/selftests/kselftest/runner.sh b/tools/testing/selftests/kselftest/runner.sh index 84de7bc74f2c..a8d20cbb711c 100644 --- a/tools/testing/selftests/kselftest/runner.sh +++ b/tools/testing/selftests/kselftest/runner.sh @@ -79,6 +79,7 @@ run_one() if [ $rc -eq $skip_rc ]; then \ echo "not ok $test_num $TEST_HDR_MSG # SKIP" elif [ $rc -eq $timeout_rc ]; then \ + echo "#" echo "not ok $test_num $TEST_HDR_MSG # TIMEOUT" else echo "not ok $test_num $TEST_HDR_MSG # exit=$rc" diff --git a/tools/testing/selftests/safesetid/Makefile b/tools/testing/selftests/safesetid/Makefile index 98da7a504737..fa02c4d5ec13 100644 --- a/tools/testing/selftests/safesetid/Makefile +++ b/tools/testing/selftests/safesetid/Makefile @@ -1,8 +1,9 @@ # SPDX-License-Identifier: GPL-2.0 # Makefile for mount selftests. -CFLAGS = -Wall -lcap -O2 +CFLAGS = -Wall -O2 +LDLIBS = -lcap -TEST_PROGS := run_tests.sh +TEST_PROGS := safesetid-test.sh TEST_GEN_FILES := safesetid-test include ../lib.mk diff --git a/tools/testing/selftests/safesetid/safesetid-test.c b/tools/testing/selftests/safesetid/safesetid-test.c index 8f40c6ecdad1..0c4d50644c13 100644 --- a/tools/testing/selftests/safesetid/safesetid-test.c +++ b/tools/testing/selftests/safesetid/safesetid-test.c @@ -213,7 +213,8 @@ static void test_setuid(uid_t child_uid, bool expect_success) } if (cpid == 0) { /* Code executed by child */ - setuid(child_uid); + if (setuid(child_uid) < 0) + exit(EXIT_FAILURE); if (getuid() == child_uid) exit(EXIT_SUCCESS); else @@ -291,8 +292,10 @@ int main(int argc, char **argv) // First test to make sure we can write userns mappings from a user // that doesn't have any restrictions (as long as it has CAP_SETUID); - setuid(NO_POLICY_USER); - setgid(NO_POLICY_USER); + if (setuid(NO_POLICY_USER) < 0) + die("Error with set uid(%d)\n", NO_POLICY_USER); + if (setgid(NO_POLICY_USER) < 0) + die("Error with set gid(%d)\n", NO_POLICY_USER); // Take away all but setid caps drop_caps(true); @@ -306,8 +309,10 @@ int main(int argc, char **argv) die("test_userns failed when it should work\n"); } - setuid(RESTRICTED_PARENT); - setgid(RESTRICTED_PARENT); + if (setuid(RESTRICTED_PARENT) < 0) + die("Error with set uid(%d)\n", RESTRICTED_PARENT); + if (setgid(RESTRICTED_PARENT) < 0) + die("Error with set gid(%d)\n", RESTRICTED_PARENT); test_setuid(ROOT_USER, false); test_setuid(ALLOWED_CHILD1, true); --------------0512B299E187455BF371CC22--