diff options
Diffstat (limited to 'tools/testing/selftests')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/recursive_attach.c | 67 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/snprintf.c | 2 | ||||
| -rw-r--r-- | tools/testing/selftests/hid/tests/test_mouse.py | 70 |
3 files changed, 139 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/recursive_attach.c b/tools/testing/selftests/bpf/prog_tests/recursive_attach.c index 8100509e561b2..0ffa01d54ce21 100644 --- a/tools/testing/selftests/bpf/prog_tests/recursive_attach.c +++ b/tools/testing/selftests/bpf/prog_tests/recursive_attach.c @@ -149,3 +149,70 @@ close_prog: fentry_recursive_target__destroy(target_skel); fentry_recursive__destroy(tracing_skel); } + +static void *fentry_target_test_run(void *arg) +{ + for (;;) { + int prog_fd = __atomic_load_n((int *)arg, __ATOMIC_SEQ_CST); + LIBBPF_OPTS(bpf_test_run_opts, topts); + int err; + + if (prog_fd == -1) + break; + err = bpf_prog_test_run_opts(prog_fd, &topts); + if (!ASSERT_OK(err, "fentry_target test_run")) + break; + } + + return NULL; +} + +void test_fentry_attach_stress(void) +{ + struct fentry_recursive_target *target_skel = NULL; + struct fentry_recursive *tracing_skel = NULL; + struct bpf_program *prog; + int err, i, tgt_prog_fd; + pthread_t thread; + + target_skel = fentry_recursive_target__open_and_load(); + if (!ASSERT_OK_PTR(target_skel, + "fentry_recursive_target__open_and_load")) + goto close_prog; + tgt_prog_fd = bpf_program__fd(target_skel->progs.fentry_target); + err = pthread_create(&thread, NULL, + fentry_target_test_run, &tgt_prog_fd); + if (!ASSERT_OK(err, "bpf_program__set_attach_target")) + goto close_prog; + + for (i = 0; i < 1000; i++) { + tracing_skel = fentry_recursive__open(); + if (!ASSERT_OK_PTR(tracing_skel, "fentry_recursive__open")) + goto stop_thread; + + prog = tracing_skel->progs.recursive_attach; + err = bpf_program__set_attach_target(prog, tgt_prog_fd, + "fentry_target"); + if (!ASSERT_OK(err, "bpf_program__set_attach_target")) + goto stop_thread; + + err = fentry_recursive__load(tracing_skel); + if (!ASSERT_OK(err, "fentry_recursive__load")) + goto stop_thread; + + err = fentry_recursive__attach(tracing_skel); + if (!ASSERT_OK(err, "fentry_recursive__attach")) + goto stop_thread; + + fentry_recursive__destroy(tracing_skel); + tracing_skel = NULL; + } + +stop_thread: + __atomic_store_n(&tgt_prog_fd, -1, __ATOMIC_SEQ_CST); + err = pthread_join(thread, NULL); + ASSERT_OK(err, "pthread_join"); +close_prog: + fentry_recursive__destroy(tracing_skel); + fentry_recursive_target__destroy(target_skel); +} diff --git a/tools/testing/selftests/bpf/prog_tests/snprintf.c b/tools/testing/selftests/bpf/prog_tests/snprintf.c index 4be6fdb78c6a1..594441acb7071 100644 --- a/tools/testing/selftests/bpf/prog_tests/snprintf.c +++ b/tools/testing/selftests/bpf/prog_tests/snprintf.c @@ -116,6 +116,8 @@ static void test_snprintf_negative(void) ASSERT_ERR(load_single_snprintf("%llc"), "invalid specifier 7"); ASSERT_ERR(load_single_snprintf("\x80"), "non ascii character"); ASSERT_ERR(load_single_snprintf("\x1"), "non printable character"); + ASSERT_ERR(load_single_snprintf("%p%"), "invalid specifier 8"); + ASSERT_ERR(load_single_snprintf("%s%"), "invalid specifier 9"); } void test_snprintf(void) diff --git a/tools/testing/selftests/hid/tests/test_mouse.py b/tools/testing/selftests/hid/tests/test_mouse.py index 66daf7e5975ca..eb4e15a0e53bd 100644 --- a/tools/testing/selftests/hid/tests/test_mouse.py +++ b/tools/testing/selftests/hid/tests/test_mouse.py @@ -439,6 +439,68 @@ class BadResolutionMultiplierMouse(ResolutionMultiplierMouse): return 32 # EPIPE +class BadReportDescriptorMouse(BaseMouse): + """ + This "device" was one autogenerated by syzbot. There are a lot of issues in + it, and the most problematic is that it declares features that have no + size. + + This leads to report->size being set to 0 and can mess up with usbhid + internals. Fortunately, uhid merely passes the incoming buffer, without + touching it so a buffer of size 0 will be translated to [] without + triggering a kernel oops. + + Because the report descriptor is wrong, no input are created, and we need + to tweak a little bit the parameters to make it look correct. + """ + + # fmt: off + report_descriptor = [ + 0x96, 0x01, 0x00, # Report Count (1) 0 + 0x06, 0x01, 0x00, # Usage Page (Generic Desktop) 3 + # 0x03, 0x00, 0x00, 0x00, 0x00, # Ignored by the kernel somehow + 0x2a, 0x90, 0xa0, # Usage Maximum (41104) 6 + 0x27, 0x00, 0x00, 0x00, 0x00, # Logical Maximum (0) 9 + 0xb3, 0x81, 0x3e, 0x25, 0x03, # Feature (Cnst,Arr,Abs,Vol) 14 + 0x1b, 0xdd, 0xe8, 0x40, 0x50, # Usage Minimum (1346431197) 19 + 0x3b, 0x5d, 0x8c, 0x3d, 0xda, # Designator Index 24 + ] + # fmt: on + + def __init__( + self, rdesc=report_descriptor, name=None, input_info=(3, 0x045E, 0x07DA) + ): + super().__init__(rdesc, name, input_info) + self.high_resolution_report_called = False + + def get_evdev(self, application=None): + assert self._input_nodes is None + return ( + "Ok" # should be a list or None, but both would fail, so abusing the system + ) + + def next_sync_events(self, application=None): + # there are no evdev nodes, so no events + return [] + + def is_ready(self): + # we wait for the SET_REPORT command to come + return self.high_resolution_report_called + + def set_report(self, req, rnum, rtype, data): + if rtype != self.UHID_FEATURE_REPORT: + raise InvalidHIDCommunication(f"Unexpected report type: {rtype}") + if rnum != 0x0: + raise InvalidHIDCommunication(f"Unexpected report number: {rnum}") + + if len(data) != 1: + raise InvalidHIDCommunication(f"Unexpected data: {data}, expected '[0]'") + + self.high_resolution_report_called = True + + return 0 + + class ResolutionMultiplierHWheelMouse(TwoWheelMouse): # fmt: off report_descriptor = [ @@ -975,3 +1037,11 @@ class TestMiMouse(TestWheelMouse): # assert below print out the real error pass assert remaining == [] + + +class TestBadReportDescriptorMouse(base.BaseTestCase.TestUhid): + def create_device(self): + return BadReportDescriptorMouse() + + def assertName(self, uhdev): + pass |