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linux/tools/testing/selftests/bpf/prog_tests
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KP Singh 5222d69642 bpf, lsm: Fix the file_mprotect LSM test. 
The test was previously using an mprotect on the heap memory allocated
using malloc and was expecting the allocation to be always using
sbrk(2). This is, however, not always true and in certain conditions
malloc may end up using anonymous mmaps for heap alloctions. This means
that the following condition that is used in the "lsm/file_mprotect"
program is not sufficent to detect all mprotect calls done on heap
memory:

	is_heap = (vma->vm_start >= vma->vm_mm->start_brk &&
		   vma->vm_end <= vma->vm_mm->brk);

The test is updated to use an mprotect on memory allocated on the stack.
While this would result in the splitting of the vma, this happens only
after the security_file_mprotect hook. So, the condition used in the BPF
program holds true.

Fixes: 03e54f100d ("bpf: lsm: Add selftests for BPF_PROG_TYPE_LSM")
Reported-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200402200751.26372-1-kpsingh@chromium.org
2020-04-02 19:42:52 -07:00
..
.gitignore
attach_probe.c selftests/bpf: Fix test_attach_probe 2019-12-19 16:14:08 +01:00
bpf_obj_id.c selftests/bpf: test_progs: remove asserts from subtests 2019-08-28 00:35:40 +02:00
bpf_tcp_ca.c bpf: Add tests for bpf_sk_storage to bpf_tcp_ca 2020-03-23 20:51:55 +01:00
bpf_verif_scale.c selftests/bpf: Add a test for a large global function 2020-01-10 17:20:07 +01:00
btf_dump.c selftests/bpf: Fix mix of tabs and spaces 2020-03-20 21:46:12 +01:00
cgroup_attach_autodetach.c selftests/bpf: Declare bpf_log_buf variables as static 2020-03-02 17:00:41 -08:00
cgroup_attach_multi.c selftests/bpf: Declare bpf_log_buf variables as static 2020-03-02 17:00:41 -08:00
cgroup_attach_override.c selftests/bpf: Declare bpf_log_buf variables as static 2020-03-02 17:00:41 -08:00
cgroup_link.c selftests/bpf: Test FD-based cgroup attachment 2020-03-30 17:36:41 -07:00
core_extern.c libbpf: Allow to augment system Kconfig through extra optional config 2019-12-18 17:33:36 -08:00
core_reloc.c selftests/bpf: Add flexible array relocation tests 2019-12-15 16:53:51 -08:00
cpu_mask.c selftests: Use consistent include paths for libbpf 2020-01-20 16:37:45 -08:00
fentry_fexit.c bpf: Add test ops for BPF_PROG_TYPE_TRACING 2020-03-04 13:41:06 -08:00
fentry_test.c bpf: Add test ops for BPF_PROG_TYPE_TRACING 2020-03-04 13:41:06 -08:00
fexit_bpf2bpf.c selftests/bpf: Initialize duration variable before using 2020-01-24 11:05:45 +01:00
fexit_stress.c selftests/bpf: Add stress test for maximum number of progs 2019-11-15 23:43:53 +01:00
fexit_test.c bpf: Add test ops for BPF_PROG_TYPE_TRACING 2020-03-04 13:41:06 -08:00
flow_dissector.c selftests/bpf: remove wrong nhoff in flow dissector test 2019-08-28 00:39:43 +02:00
flow_dissector_load_bytes.c selftests/bpf: add flow dissector bpf_skb_load_bytes helper test 2019-04-23 18:36:34 +02:00
flow_dissector_reattach.c selftests/bpf: Restore the netns after flow dissector reattach test 2019-10-17 12:10:16 -07:00
get_stack_raw_tp.c bpf: Test_progs, add test to catch retval refine error handling 2020-03-30 15:00:30 -07:00
global_data.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
global_data_init.c selftests: Add test for overriding global data value before load 2020-03-30 01:17:35 +02:00
kfree_skb.c selftest/bpf: Simple test for fentry/fexit 2019-11-15 23:42:46 +01:00
l4lb_all.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
link_pinning.c selftests/bpf: Add link pinning selftests 2020-03-02 22:06:27 -08:00
map_lock.c selftests/bpf: test_progs: remove asserts from subtests 2019-08-28 00:35:40 +02:00
mmap.c bpftool, selftests/bpf: Embed object file inside skeleton 2019-12-17 22:16:35 -08:00
modify_return.c bpf: Add selftests for BPF_MODIFY_RETURN 2020-03-04 13:41:06 -08:00
ns_current_pid_tgid.c tools/testing/selftests/bpf: Add self-tests for new helper bpf_get_ns_current_pid_tgid. 2020-03-12 17:40:47 -07:00
obj_name.c selftests: bpf: break up test_progs - misc 2019-03-02 11:10:40 -08:00
perf_branches.c selftests/bpf: Add bpf_read_branch_records() selftest 2020-02-19 15:01:07 -08:00
perf_buffer.c selftests: Use consistent include paths for libbpf 2020-01-20 16:37:45 -08:00
pinning.c selftests/bpf: Add tests for automatic map unpinning on load failure 2019-11-10 19:26:30 -08:00
pkt_access.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
pkt_md_access.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
probe_user.c libbpf: Add generic bpf_program__attach() 2019-12-15 15:58:04 -08:00
prog_run_xattr.c selftests: bpf: break up test_progs - misc 2019-03-02 11:10:40 -08:00
queue_stack_map.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
raw_tp_writable_reject_nbd_invalid.c selftests: bpf: test writable buffers in raw tps 2019-04-26 19:04:19 -07:00
raw_tp_writable_test_run.c selftests: bpf: test writable buffers in raw tps 2019-04-26 19:04:19 -07:00
rdonly_maps.c libbpf: Expose BPF program's function name 2019-12-15 15:58:05 -08:00
reference_tracking.c libbpf: Make DECLARE_LIBBPF_OPTS macro strictly a variable declaration 2019-10-22 21:35:03 +02:00
section_names.c selftests/bpf: Move test_section_names into test_progs and fix it 2019-10-23 10:06:46 -07:00
select_reuseport.c selftests: bpf: Enable UDP sockmap reuseport tests 2020-03-09 22:34:59 +01:00
send_signal.c selftests/bpf: Fix test_progs send_signal flakiness with nmi mode 2020-01-16 13:28:57 -08:00
send_signal_sched_switch.c selftests/bpf: Add send_signal_sched_switch test 2020-03-05 14:02:41 -08:00
signal_pending.c selftests: bpf: test_progs: initialize duration in singal_pending test 2019-03-07 10:46:25 +01:00
sk_assign.c selftests: bpf: Extend sk_assign tests for UDP 2020-03-30 13:45:05 -07:00
skb_ctx.c selftests/bpf: Test new __sk_buff field gso_size 2020-03-03 16:23:59 -08:00
skeleton.c libbpf: Put Kconfig externs into .kconfig section 2019-12-18 17:33:36 -08:00
sockmap_basic.c bpf: Selftests build error in sockmap_basic.c 2020-02-10 14:31:34 -08:00
sockmap_ktls.c selftests/bpf: Fix build of sockmap_ktls.c 2020-02-20 01:17:24 +01:00
sockmap_listen.c selftests/bpf: Fix spurious failures in accept due to EAGAIN 2020-03-13 21:37:06 +01:00
sockopt.c selftests/bpf: test_progs: convert test_sockopt 2019-09-06 09:59:05 -07:00
sockopt_inherit.c selftests/bpf: test_progs: Don't leak server_fd in test_sockopt_inherit 2019-10-02 00:58:07 +02:00
sockopt_multi.c selftests/bpf: test_progs: convert test_sockopt_multi 2019-09-06 09:59:05 -07:00
sockopt_sk.c selftests/bpf: test_progs: convert test_sockopt_sk 2019-09-06 09:59:05 -07:00
spinlock.c selftests/bpf: test_progs: remove asserts from subtests 2019-08-28 00:35:40 +02:00
stacktrace_build_id.c bpftool, selftests/bpf: Embed object file inside skeleton 2019-12-17 22:16:35 -08:00
stacktrace_build_id_nmi.c selftests/bpf: Skip perf hw events test if the setup disabled it 2020-01-20 23:26:58 +01:00
stacktrace_map.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
stacktrace_map_raw_tp.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
tailcalls.c bpf, testing: Add various tail call test cases 2019-11-24 17:04:12 -08:00
task_fd_query_rawtp.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
task_fd_query_tp.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
tcp_estats.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
tcp_rtt.c selftests/bpf: Fix race in tcp_rtt test 2020-03-17 19:30:26 +01:00
test_global_funcs.c selftests/bpf: Add unit tests for global functions 2020-01-10 17:20:07 +01:00
test_lsm.c bpf, lsm: Fix the file_mprotect LSM test. 2020-04-02 19:42:52 -07:00
test_overhead.c selftests/bpf: Restore original comm in test_overhead 2020-01-09 08:42:07 -08:00
tp_attach_query.c selftests: bpf: initialize bpf_object pointers where needed 2019-05-09 15:53:56 -07:00
trampoline_count.c selftests/bpf: Fix trampoline_count clean up logic 2020-02-20 18:03:10 -08:00
vmlinux.c selftests/bpf: Fix nanosleep for real this time 2020-03-17 19:29:12 +01:00
xdp.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
xdp_adjust_tail.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
xdp_attach.c selftests/bpf: Add tests for attaching XDP programs 2020-03-28 14:24:41 -07:00
xdp_bpf2bpf.c bpf: Add bpf_xdp_output() helper 2020-03-12 17:47:38 -07:00
xdp_noinline.c selftests/bpf: test_progs: remove global fail/success counts 2019-08-28 00:35:40 +02:00
xdp_perf.c selftests: bpf: Add xdp_perf test 2019-12-13 13:09:32 -08:00