- Linux-kselftest-mirror - lists.linaro.org

[PATCH v2] selftests/tls: Add {} to avoid static checker warning

by Kees Cook

This silences a static checker warning due to the unusual macro construction of EXPECT_*() by adding explicit {}s around the enclosing while loop. Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com> Fixes: 7f657d5bf507 ("selftests: tls: add selftests for TLS sockets") Signed-off-by: Kees Cook <keescook(a)chromium.org> --- v2: rebase to v5.9-rc2; oops, I lost this patch and just found it again v1: https://lore.kernel.org/lkml/20190108214159.GA33292@beast/ --- tools/testing/selftests/net/tls.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c index b599f1fa99b5..44984741bd41 100644 --- a/tools/testing/selftests/net/tls.c +++ b/tools/testing/selftests/net/tls.c @@ -387,8 +387,9 @@ TEST_F(tls, sendmsg_large) EXPECT_EQ(sendmsg(self->cfd, &msg, 0), send_len); } - while (recvs++ < sends) + while (recvs++ < sends) { EXPECT_NE(recv(self->fd, mem, send_len, 0), -1); + } free(mem); } -- 2.25.1

5 years, 1 month

1
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[PATCH v2 00/11] Introduce Simple atomic counters

by Shuah Khan

This patch series is a result of discussion at the refcount_t BOF the Linux Plumbers Conference. In this discussion, we identified a need for looking closely and investigating atomic_t usages in the kernel when it is used strictly as a counter without it controlling object lifetimes and state changes. There are a number of atomic_t usages in the kernel where atomic_t api is used strictly for counting and not for managing object lifetime. In some cases, atomic_t might not even be needed. The purpose of these counters is to clearly differentiate atomic_t counters from atomic_t usages that guard object lifetimes, hence prone to overflow and underflow errors. It allows tools that scan for underflow and overflow on atomic_t usages to detect overflow and underflows to scan just the cases that are prone to errors. Simple atomic counters api provides interfaces for simple atomic counters that just count, and don't guard resource lifetimes. Counter will wrap around to 0 when it overflows and should not be used to guard resource lifetimes, device usage and open counts that control state changes, and pm states. Using counter_atomic* to guard lifetimes could lead to use-after free when it overflows and undefined behavior when used to manage state changes and device usage/open states. This patch series introduces Simple atomic counters. Counter atomic ops leverage atomic_t and provide a sub-set of atomic_t ops. In addition this patch series converts a few drivers to use the new api. The following criteria is used for select variables for conversion: 1. Variable doesn't guard object lifetimes, manage state changes e.g: device usage counts, device open counts, and pm states. 2. Variable is used for stats and counters. 3. The conversion doesn't change the overflow behavior. Changes since Patch v1 -- Thanks for reviews and reviewed-by, and Acked-by tags. Updated the patches with the tags. -- Addressed Kees's and Joel's comments: 1. Removed dec_return interfaces (Patch 1/11) 2. Removed counter_simple interfaces to be added later with changes to drivers that use them (if any) (Patch 1/11) 3. Comment and Changelogs updates to Patch 2/11 Kees, if this series is good, would you like to take this through your tree or would you like to take this through mine? Changes since RFC: -- Thanks for reviews and reviewed-by, and Acked-by tags. Updated the patches with the tags. -- Addressed Kees's comments: 1. Non-atomic counters renamed to counter_simple32 and counter_simple64 to clearly indicate size. 2. Added warning for counter_simple* usage and it should be used only when there is no need for atomicity. 3. Renamed counter_atomic to counter_atomic32 to clearly indicate size. 4. Renamed counter_atomic_long to counter_atomic64 and it now uses atomic64_t ops and indicates size. 5. Test updated for the API renames. 6. Added helper functions for test results printing 7. Verified that the test module compiles in kunit env. and test module can be loaded to run the test. 8. Updated Documentation to reflect the intent to make the API restricted so it can never be used to guard object lifetimes and state management. I left _return ops for now, inc_return is necessary for now as per the discussion we had on this topic. -- Updated driver patches with API name changes. -- We discussed if binder counters can be non-atomic. For now I left them the same as the RFC patch - using counter_atomic32 -- Unrelated to this patch series: The patch series review uncovered improvements could be made to test_async_driver_probe and vmw_vmci/vmci_guest. I will track these for fixing later. Shuah Khan (11): counters: Introduce counter_atomic* counters selftests:lib:test_counters: add new test for counters drivers/base: convert deferred_trigger_count and probe_count to counter_atomic32 drivers/base/devcoredump: convert devcd_count to counter_atomic32 drivers/acpi: convert seqno counter_atomic32 drivers/acpi/apei: convert seqno counter_atomic32 drivers/android/binder: convert stats, transaction_log to counter_atomic32 drivers/base/test/test_async_driver_probe: convert to use counter_atomic32 drivers/char/ipmi: convert stats to use counter_atomic32 drivers/misc/vmw_vmci: convert num guest devices counter to counter_atomic32 drivers/edac: convert pci counters to counter_atomic32 Documentation/core-api/counters.rst | 103 +++++++++++ MAINTAINERS | 8 + drivers/acpi/acpi_extlog.c | 5 +- drivers/acpi/apei/ghes.c | 5 +- drivers/android/binder.c | 41 ++--- drivers/android/binder_internal.h | 3 +- drivers/base/dd.c | 19 +- drivers/base/devcoredump.c | 5 +- drivers/base/test/test_async_driver_probe.c | 23 +-- drivers/char/ipmi/ipmi_msghandler.c | 9 +- drivers/char/ipmi/ipmi_si_intf.c | 9 +- drivers/edac/edac_pci.h | 5 +- drivers/edac/edac_pci_sysfs.c | 28 +-- drivers/misc/vmw_vmci/vmci_guest.c | 9 +- include/linux/counters.h | 173 +++++++++++++++++++ lib/Kconfig | 10 ++ lib/Makefile | 1 + lib/test_counters.c | 157 +++++++++++++++++ tools/testing/selftests/lib/Makefile | 1 + tools/testing/selftests/lib/config | 1 + tools/testing/selftests/lib/test_counters.sh | 5 + 21 files changed, 546 insertions(+), 74 deletions(-) create mode 100644 Documentation/core-api/counters.rst create mode 100644 include/linux/counters.h create mode 100644 lib/test_counters.c create mode 100755 tools/testing/selftests/lib/test_counters.sh -- 2.25.1

5 years, 1 month

2
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[REGRESSION] kselftest: next-20201006

by LKFT

## Kernel * kernel: 5.9.0-rc8 * git repo: ['https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git', 'https://gitlab.com/Linaro/lkft/mirrors/next/linux-next'] * git branch: master * git commit: a804ab086e9de200e2e70600996db7fc14c91959 * git describe: next-20201006 * Test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20201006 ## Regressions (compared to build next-20201002) x86: kselftest-vsyscall-mode-none: * rtc.rtctest kselftest: * net.mptcp.mptcp_connect.sh * rtc.rtctest i386: kselftest: * rtc.rtctest ## Fixes (compared to build next-20201002) x86: kselftest-vsyscall-mode-native: * net.mptcp.mptcp_connect.sh * rtc.rtctest kselftest-vsyscall-mode-none: * proc.read * tc-testing.tdc.sh i386: kselftest: * pidfd.pidfd_test ## Summary ### i386, kselftest * total: 676 * pass: 410 * fail: 215 * skip: 51 * xfail: 0 ### juno-r2, kselftest * total: 653 * pass: 404 * fail: 199 * skip: 50 * xfail: 0 ### x86, kselftest * total: 670 * pass: 436 * fail: 189 * skip: 45 * xfail: 0 ### x86, kselftest-vsyscall-mode-native * total: 671 * pass: 439 * fail: 187 * skip: 45 * xfail: 0 ### x86, kselftest-vsyscall-mode-none * total: 670 * pass: 437 * fail: 188 * skip: 45 * xfail: 0 ## Environments * dragonboard-410c * hi6220-hikey * i386 * juno-r2 * juno-r2-compat * juno-r2-kasan * nxp-ls2088 * qemu_arm * qemu_arm64 * qemu_i386 * qemu_x86_64 * x15 * x86 * x86-kasan ## Suites * kselftest * kselftest-vsyscall-mode-native * kselftest-vsyscall-mode-none ## Failures ### i386, kselftest * bpf.test_verifier * bpf.test_maps * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_clear_sighand * clone3.clone3_cap_checkpoint_restore * core.close_range_test * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * intel_pstate.run.sh * kvm.cr4_cpuid_sync_test * kvm.evmcs_test * kvm.hyperv_cpuid * kvm.mmio_warning_test * kvm.platform_info_test * kvm.set_sregs_test * kvm.smm_test * kvm.state_test * kvm.vmx_preemption_timer_test * kvm.svm_vmcall_test * kvm.sync_regs_test * kvm.vmx_close_while_nested_test * kvm.vmx_dirty_log_test * kvm.vmx_set_nested_state_test * kvm.vmx_tsc_adjust_test * kvm.xss_msr_test * kvm.debug_regs * kvm.clear_dirty_log_test * kvm.demand_paging_test * kvm.dirty_log_test * kvm.kvm_create_max_vcpus * kvm.set_memory_region_test * kvm.steal_time * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * mqueue.mq_perf_tests * net.run_netsocktests * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.test_vxlan_under_vrf.sh * net.l2tp.sh * net.traceroute.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.simult_flows.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-self-syscall * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * rseq.param_test * rseq.param_test_benchmark * rseq.param_test_compare_twice * rseq.run_param_test.sh * rtc.rtctest * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * vm.run_vmtests.sh ### juno-r2, kselftest * bpf.test_verifier * bpf.test_tag * bpf.test_maps * bpf.test_lpm_map * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_cap_checkpoint_restore * core.close_range_test * cpufreq.main.sh * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * memory-hotplug.mem-on-off-test.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * net.run_netsocktests * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.fib_rule_tests.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.udpgro.sh * net.test_vxlan_under_vrf.sh * net.tcp_fastopen_backup_key.sh * net.l2tp.sh * net.fib_nexthops.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.simult_flows.sh * netfilter.nft_nat.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_test * pidfd.pidfd_fdinfo_test * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * rseq.param_test * rseq.param_test_benchmark * rseq.param_test_compare_twice * rtc.rtctest * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * sysctl.sysctl.sh * tc-testing.tdc.sh * vm.run_vmtests.sh ### x86, kselftest * bpf.test_verifier * bpf.test_maps * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_cap_checkpoint_restore * core.close_range_test * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * intel_pstate.run.sh * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * mqueue.mq_perf_tests * net.run_netsocktests * net.xfrm_policy.sh * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.udpgro.sh * net.test_vxlan_under_vrf.sh * net.l2tp.sh * net.traceroute.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.mptcp_connect.sh * net.mptcp.simult_flows.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * rtc.rtctest * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * vm.run_vmtests.sh * x86.syscall_numbering_64 ### x86, kselftest-vsyscall-mode-native * bpf.test_verifier * bpf.test_maps * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_cap_checkpoint_restore * core.close_range_test * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * intel_pstate.run.sh * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * mqueue.mq_perf_tests * net.run_netsocktests * net.xfrm_policy.sh * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.udpgro.sh * net.test_vxlan_under_vrf.sh * net.l2tp.sh * net.traceroute.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.simult_flows.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * vm.run_vmtests.sh * x86.syscall_numbering_64 ### x86, kselftest-vsyscall-mode-none * bpf.test_verifier * bpf.test_maps * bpf.test_progs * bpf.test_dev_cgroup * bpf.test_tcpbpf_user * bpf.get_cgroup_id_user * bpf.test_socket_cookie * bpf.test_netcnt * bpf.test_tcpnotify_user * bpf.test_sysctl * bpf.test_progs-no_alu32 * bpf.test_xdp_redirect.sh * bpf.test_xdp_meta.sh * bpf.test_sock_addr.sh * bpf.test_tunnel.sh * bpf.test_lwt_seg6local.sh * bpf.test_skb_cgroup_id.sh * bpf.test_flow_dissector.sh * bpf.test_xdp_vlan_mode_generic.sh * bpf.test_xdp_vlan_mode_native.sh * bpf.test_lwt_ip_encap.sh * bpf.test_tcp_check_syncookie.sh * bpf.test_tc_tunnel.sh * bpf.test_tc_edt.sh * bpf.test_xdping.sh * bpf.test_bpftool.sh * cgroup.test_memcontrol * cgroup.test_kmem * cgroup.test_core * cgroup.test_freezer * clone3.clone3_cap_checkpoint_restore * core.close_range_test * filesystems.binderfs.binderfs_test * firmware.fw_run_tests.sh * ftrace.ftracetest * intel_pstate.run.sh * lkdtm.BUG.sh * lkdtm.WARNING.sh * lkdtm.WARNING_MESSAGE.sh * lkdtm.EXCEPTION.sh * lkdtm.CORRUPT_LIST_ADD.sh * lkdtm.CORRUPT_LIST_DEL.sh * lkdtm.STACK_GUARD_PAGE_LEADING.sh * lkdtm.STACK_GUARD_PAGE_TRAILING.sh * lkdtm.UNSET_SMEP.sh * lkdtm.CORRUPT_PAC.sh * lkdtm.UNALIGNED_LOAD_STORE_WRITE.sh * lkdtm.READ_AFTER_FREE.sh * lkdtm.READ_BUDDY_AFTER_FREE.sh * lkdtm.SLAB_FREE_DOUBLE.sh * lkdtm.SLAB_FREE_CROSS.sh * lkdtm.SLAB_FREE_PAGE.sh * lkdtm.EXEC_DATA.sh * lkdtm.EXEC_STACK.sh * lkdtm.EXEC_KMALLOC.sh * lkdtm.EXEC_VMALLOC.sh * lkdtm.EXEC_RODATA.sh * lkdtm.EXEC_USERSPACE.sh * lkdtm.EXEC_NULL.sh * lkdtm.ACCESS_USERSPACE.sh * lkdtm.ACCESS_NULL.sh * lkdtm.WRITE_RO.sh * lkdtm.WRITE_RO_AFTER_INIT.sh * lkdtm.WRITE_KERN.sh * lkdtm.REFCOUNT_INC_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_OVERFLOW.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_OVERFLOW.sh * lkdtm.REFCOUNT_DEC_ZERO.sh * lkdtm.REFCOUNT_DEC_NEGATIVE.sh * lkdtm.REFCOUNT_DEC_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_SUB_AND_TEST_NEGATIVE.sh * lkdtm.REFCOUNT_INC_ZERO.sh * lkdtm.REFCOUNT_ADD_ZERO.sh * lkdtm.REFCOUNT_INC_SATURATED.sh * lkdtm.REFCOUNT_DEC_SATURATED.sh * lkdtm.REFCOUNT_ADD_SATURATED.sh * lkdtm.REFCOUNT_INC_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_ADD_NOT_ZERO_SATURATED.sh * lkdtm.REFCOUNT_DEC_AND_TEST_SATURATED.sh * lkdtm.REFCOUNT_SUB_AND_TEST_SATURATED.sh * lkdtm.USERCOPY_HEAP_SIZE_TO.sh * lkdtm.USERCOPY_HEAP_SIZE_FROM.sh * lkdtm.USERCOPY_HEAP_WHITELIST_TO.sh * lkdtm.USERCOPY_HEAP_WHITELIST_FROM.sh * lkdtm.USERCOPY_STACK_FRAME_TO.sh * lkdtm.USERCOPY_STACK_FRAME_FROM.sh * lkdtm.USERCOPY_STACK_BEYOND.sh * lkdtm.USERCOPY_KERNEL.sh * lkdtm.STACKLEAK_ERASING.sh * lkdtm.CFI_FORWARD_PROTO.sh * mincore.mincore_selftest.global.check_file_mmap * mincore.mincore_selftest * mqueue.mq_perf_tests * net.run_netsocktests * net.xfrm_policy.sh * net.fib_tests.sh * net.fib-onlink-tests.sh * net.pmtu.sh * net.udpgso_bench.sh * net.psock_snd.sh * net.udpgro_bench.sh * net.udpgro.sh * net.test_vxlan_under_vrf.sh * net.l2tp.sh * net.traceroute.sh * net.altnames.sh * net.icmp_redirect.sh * net.txtimestamp.sh * net.vrf-xfrm-tests.sh * net.devlink_port_split.py * net.forwarding.bridge_igmp.sh * net.forwarding.bridge_port_isolation.sh * net.forwarding.bridge_sticky_fdb.sh * net.forwarding.bridge_vlan_aware.sh * net.forwarding.bridge_vlan_unaware.sh * net.forwarding.ethtool.sh * net.forwarding.gre_inner_v4_multipath.sh * net.forwarding.gre_inner_v6_multipath.sh * net.forwarding.gre_multipath.sh * net.forwarding.ip6gre_inner_v4_multipath.sh * net.forwarding.ip6gre_inner_v6_multipath.sh * net.forwarding.ipip_flat_gre_key.sh * net.forwarding.ipip_flat_gre_keys.sh * net.forwarding.ipip_flat_gre.sh * net.forwarding.ipip_hier_gre_key.sh * net.forwarding.ipip_hier_gre_keys.sh * net.forwarding.ipip_hier_gre.sh * net.forwarding.loopback.sh * net.forwarding.mirror_gre_bound.sh * net.forwarding.mirror_gre_bridge_1d.sh * net.forwarding.mirror_gre_bridge_1d_vlan.sh * net.forwarding.mirror_gre_bridge_1q_lag.sh * net.forwarding.mirror_gre_bridge_1q.sh * net.forwarding.mirror_gre_changes.sh * net.forwarding.mirror_gre_flower.sh * net.forwarding.mirror_gre_lag_lacp.sh * net.forwarding.mirror_gre_neigh.sh * net.forwarding.mirror_gre_nh.sh * net.forwarding.mirror_gre.sh * net.forwarding.mirror_gre_vlan_bridge_1q.sh * net.forwarding.mirror_gre_vlan.sh * net.forwarding.mirror_vlan.sh * net.forwarding.router_bridge.sh * net.forwarding.router_bridge_vlan.sh * net.forwarding.router_broadcast.sh * net.forwarding.router_mpath_nh.sh * net.forwarding.router_multicast.sh * net.forwarding.router_multipath.sh * net.forwarding.router.sh * net.forwarding.router_vid_1.sh * net.forwarding.sch_ets.sh * net.forwarding.sch_tbf_ets.sh * net.forwarding.sch_tbf_prio.sh * net.forwarding.sch_tbf_root.sh * net.forwarding.tc_actions.sh * net.forwarding.tc_chains.sh * net.forwarding.tc_flower_router.sh * net.forwarding.tc_flower.sh * net.forwarding.tc_shblocks.sh * net.forwarding.tc_vlan_modify.sh * net.forwarding.vxlan_asymmetric.sh * net.forwarding.vxlan_bridge_1d_port_8472.sh * net.forwarding.vxlan_bridge_1d.sh * net.forwarding.vxlan_bridge_1q_port_8472.sh * net.forwarding.vxlan_bridge_1q.sh * net.forwarding.vxlan_symmetric.sh * net.mptcp.simult_flows.sh * netfilter.nft_concat_range.sh * netfilter.nft_queue.sh * pidfd.pidfd_open_test * pidfd.pidfd_poll_test * proc.proc-fsconfig-hidepid * pstore.pstore_tests * ptrace.vmaccess.global.attach * ptrace.vmaccess * openat2.openat2_test * openat2.resolve_test * openat2.rename_attack_test * rtc.rtctest * seccomp.seccomp_bpf.global.user_notification_filter_empty * seccomp.seccomp_bpf.global.user_notification_filter_empty_threaded * seccomp.seccomp_bpf.global.user_notification_addfd * seccomp.seccomp_bpf * seccomp.seccomp_benchmark * splice.short_splice_read.sh * vm.run_vmtests.sh * x86.syscall_numbering_64 ## Skips ### i386, kselftest * breakpoints.breakpoint_test * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * net.udpgro.sh * net.xfrm_policy.sh * netfilter.bridge_brouter.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_flowtable.sh * netfilter.nft_nat.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * zram.zram.sh * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * ir.ir_loopback.sh * kexec.test_kexec_load.sh * kexec.test_kexec_file_load.sh * livepatch.test-livepatch.sh * livepatch.test-callbacks.sh * livepatch.test-shadow-vars.sh * livepatch.test-state.sh * livepatch.test-ftrace.sh * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * memory-hotplug.mem-on-off-test.sh * net.reuseport_bpf_numa * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * proc.proc-pid-vm * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh ### juno-r2, kselftest * mqueue.mq_perf_tests * breakpoints.breakpoint_test_arm64 * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * netfilter.bridge_brouter.sh * netfilter.nft_flowtable.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * rseq.run_param_test.sh * zram.zram.sh * arm64.sve-ptrace * arm64.sve-probe-vls * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * intel_pstate.run.sh * ir.ir_loopback.sh * livepatch.test-livepatch.sh * livepatch.test-callbacks.sh * livepatch.test-shadow-vars.sh * livepatch.test-state.sh * livepatch.test-ftrace.sh * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * net.xfrm_policy.sh * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * proc.proc-pid-vm * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh ### x86, kselftest * breakpoints.breakpoint_test * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * netfilter.bridge_brouter.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_flowtable.sh * netfilter.nft_nat.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * proc.proc-pid-vm * zram.zram.sh * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * ir.ir_loopback.sh * kexec.test_kexec_load.sh * kexec.test_kexec_file_load.sh * kvm.mmio_warning_test * kvm.svm_vmcall_test * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh ### x86, kselftest-vsyscall-mode-native * breakpoints.breakpoint_test * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * netfilter.bridge_brouter.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_flowtable.sh * netfilter.nft_nat.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * proc.proc-pid-vm * zram.zram.sh * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * ir.ir_loopback.sh * kexec.test_kexec_load.sh * kexec.test_kexec_file_load.sh * kvm.mmio_warning_test * kvm.svm_vmcall_test * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh ### x86, kselftest-vsyscall-mode-none * breakpoints.breakpoint_test * breakpoints.step_after_suspend_test * net.msg_zerocopy.sh * net.rtnetlink.sh * netfilter.bridge_brouter.sh * netfilter.conntrack_icmp_related.sh * netfilter.nft_flowtable.sh * netfilter.nft_nat.sh * netfilter.nft_trans_stress.sh * pidfd.pidfd_wait * proc.proc-pid-vm * zram.zram.sh * bpf.test_xdp_veth.sh * bpf.test_bpftool_metadata.sh * cgroup.test_stress.sh * efivarfs.efivarfs.sh * fpu.run_test_fpu.sh * ir.ir_loopback.sh * kexec.test_kexec_load.sh * kexec.test_kexec_file_load.sh * kvm.mmio_warning_test * kvm.svm_vmcall_test * lkdtm.PANIC.sh * lkdtm.LOOP.sh * lkdtm.EXHAUST_STACK.sh * lkdtm.CORRUPT_STACK.sh * lkdtm.CORRUPT_STACK_STRONG.sh * lkdtm.DOUBLE_FAULT.sh * lkdtm.OVERWRITE_ALLOCATION.sh * lkdtm.WRITE_AFTER_FREE.sh * lkdtm.WRITE_BUDDY_AFTER_FREE.sh * lkdtm.SOFTLOCKUP.sh * lkdtm.HARDLOCKUP.sh * lkdtm.SPINLOCKUP.sh * lkdtm.HUNG_TASK.sh * lkdtm.REFCOUNT_TIMING.sh * lkdtm.ATOMIC_TIMING.sh * net.drop_monitor_tests.sh * net.mptcp.diag.sh * netfilter.ipvs.sh * netfilter.nft_conntrack_helper.sh * netfilter.nft_meta.sh * pstore.pstore_post_reboot_tests * tpm2.test_smoke.sh * tpm2.test_space.sh -- Linaro LKFT https://lkft.linaro.org

5 years, 1 month

1
0
0 0

[PATCH] selftests/vm: 10x speedup for hmm-tests

by John Hubbard

This patch reduces the running time for hmm-tests from about 10+ seconds, to just under 1.0 second, for an approximately 10x speedup. That brings it in line with most of the other tests in selftests/vm, which mostly run in < 1 sec. This is done with a one-line change that simply reduces the number of iterations of several tests, from 256, to 10. Thanks to Ralph Campbell for suggesting changing NTIMES as a way to get the speedup. Suggested-by: Ralph Campbell <rcampbell(a)nvidia.com> Signed-off-by: John Hubbard <jhubbard(a)nvidia.com> --- This is based on mmotm. tools/testing/selftests/vm/hmm-tests.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/vm/hmm-tests.c b/tools/testing/selftests/vm/hmm-tests.c index 6b79723d7dc6..5d1ac691b9f4 100644 --- a/tools/testing/selftests/vm/hmm-tests.c +++ b/tools/testing/selftests/vm/hmm-tests.c @@ -49,7 +49,7 @@ struct hmm_buffer { #define TWOMEG (1 << 21) #define HMM_BUFFER_SIZE (1024 << 12) #define HMM_PATH_MAX 64 -#define NTIMES 256 +#define NTIMES 10 #define ALIGN(x, a) (((x) + (a - 1)) & (~((a) - 1))) -- 2.28.0

5 years, 1 month

2
3
0 0

[PATCH bpf-next v4 0/6] bpf: BTF support for ksyms

by Hao Luo

v3 -> v4: - Rebasing - Cast bpf_[per|this]_cpu_ptr's parameter to void __percpu * before passing into per_cpu_ptr. v2 -> v3: - Rename functions and variables in verifier for better readability. - Stick to logging message convention in libbpf. - Move bpf_per_cpu_ptr and bpf_this_cpu_ptr from trace-specific helper set to base helper set. - More specific test in ksyms_btf. - Fix return type cast in bpf_*_cpu_ptr. - Fix btf leak in ksyms_btf selftest. - Fix return error code for kallsyms_find(). v1 -> v2: - Move check_pseudo_btf_id from check_ld_imm() to replace_map_fd_with_map_ptr() and rename the latter. - Add bpf_this_cpu_ptr(). - Use bpf_core_types_are_compat() in libbpf.c for checking type compatibility. - Rewrite typed ksym extern type in BTF with int to save space. - Minor revision of bpf_per_cpu_ptr()'s comments. - Avoid using long in tests that use skeleton. - Refactored test_ksyms.c by moving kallsyms_find() to trace_helpers.c - Fold the patches that sync include/linux/uapi and tools/include/linux/uapi. rfc -> v1: - Encode VAR's btf_id for PSEUDO_BTF_ID. - More checks in verifier. Checking the btf_id passed as PSEUDO_BTF_ID is valid VAR, its name and type. - Checks in libbpf on type compatibility of ksyms. - Add bpf_per_cpu_ptr() to access kernel percpu vars. Introduced new ARG and RET types for this helper. This patch series extends the previously added __ksym externs with btf support. Right now the __ksym externs are treated as pure 64-bit scalar value. Libbpf replaces ld_imm64 insn of __ksym by its kernel address at load time. This patch series extend those externs with their btf info. Note that btf support for __ksym must come with the kernel btf that has VARs encoded to work properly. The corresponding chagnes in pahole is available at [1] (with a fix at [2] for gcc 4.9+). The first 3 patches in this series add support for general kernel global variables, which include verifier checking (01/06), libpf support (02/06) and selftests for getting typed ksym extern's kernel address (03/06). The next 3 patches extends that capability further by introducing helpers bpf_per_cpu_ptr() and bpf_this_cpu_ptr(), which allows accessing kernel percpu variables correctly (04/06 and 05/06). The tests of this feature were performed against pahole that is extended with [1] and [2]. For kernel BTF that does not have VARs encoded, the selftests will be skipped. [1] https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=f3d9054ba… [2] https://www.spinics.net/lists/dwarves/msg00451.html Hao Luo (6): bpf: Introduce pseudo_btf_id bpf/libbpf: BTF support for typed ksyms selftests/bpf: ksyms_btf to test typed ksyms bpf: Introduce bpf_per_cpu_ptr() bpf: Introducte bpf_this_cpu_ptr() bpf/selftests: Test for bpf_per_cpu_ptr() and bpf_this_cpu_ptr() include/linux/bpf.h | 6 + include/linux/bpf_verifier.h | 7 + include/linux/btf.h | 26 +++ include/uapi/linux/bpf.h | 67 +++++- kernel/bpf/btf.c | 25 --- kernel/bpf/helpers.c | 32 +++ kernel/bpf/verifier.c | 190 ++++++++++++++++-- kernel/trace/bpf_trace.c | 4 + tools/include/uapi/linux/bpf.h | 67 +++++- tools/lib/bpf/libbpf.c | 112 +++++++++-- .../testing/selftests/bpf/prog_tests/ksyms.c | 38 ++-- .../selftests/bpf/prog_tests/ksyms_btf.c | 88 ++++++++ .../selftests/bpf/progs/test_ksyms_btf.c | 55 +++++ tools/testing/selftests/bpf/trace_helpers.c | 27 +++ tools/testing/selftests/bpf/trace_helpers.h | 4 + 15 files changed, 653 insertions(+), 95 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/ksyms_btf.c create mode 100644 tools/testing/selftests/bpf/progs/test_ksyms_btf.c -- 2.28.0.709.gb0816b6eb0-goog

5 years, 1 month

2
12
0 0

[PATCH v5 00/16] Introduce partial kernel_read_file() support

by Kees Cook

v5: - add more reviews (thank you!) - add "description" string to post_load_data API (mimi) - drop bug fix that got taken already v4: https://lore.kernel.org/lkml/20200729175845.1745471-1-keescook@chromium.org/ v3: https://lore.kernel.org/lkml/20200724213640.389191-1-keescook@chromium.org/ v2: lost to the ether v1: https://lore.kernel.org/lkml/20200717174309.1164575-1-keescook@chromium.org/ Hi, Here's my tree for adding partial read support in kernel_read_file(), which fixes a number of issues along the way. It's got Scott's firmware and IMA patches ported and everything tests cleanly for me (even with CONFIG_IMA_APPRAISE=y), and now appears to pass 0day. :) The intention is for this to go via Greg's tree since Scott's driver code will depend on it. Thanks, -Kees Kees Cook (12): fs/kernel_read_file: Remove FIRMWARE_PREALLOC_BUFFER enum fs/kernel_read_file: Remove FIRMWARE_EFI_EMBEDDED enum fs/kernel_read_file: Split into separate source file fs/kernel_read_file: Remove redundant size argument fs/kernel_read_file: Switch buffer size arg to size_t fs/kernel_read_file: Add file_size output argument LSM: Introduce kernel_post_load_data() hook firmware_loader: Use security_post_load_data() module: Call security_kernel_post_load_data() LSM: Add "contents" flag to kernel_read_file hook fs/kernel_file_read: Add "offset" arg for partial reads firmware: Store opt_flags in fw_priv Scott Branden (4): fs/kernel_read_file: Split into separate include file IMA: Add support for file reads without contents firmware: Add request_partial_firmware_into_buf() test_firmware: Test partial read support drivers/base/firmware_loader/fallback.c | 19 +- drivers/base/firmware_loader/fallback.h | 5 +- .../base/firmware_loader/fallback_platform.c | 12 +- drivers/base/firmware_loader/firmware.h | 7 +- drivers/base/firmware_loader/main.c | 135 ++++++++++--- fs/Makefile | 3 +- fs/exec.c | 132 +----------- fs/kernel_read_file.c | 189 ++++++++++++++++++ include/linux/firmware.h | 12 ++ include/linux/fs.h | 39 ---- include/linux/ima.h | 20 +- include/linux/kernel_read_file.h | 55 +++++ include/linux/lsm_hook_defs.h | 6 +- include/linux/lsm_hooks.h | 13 ++ include/linux/security.h | 21 +- kernel/kexec.c | 2 +- kernel/kexec_file.c | 19 +- kernel/module.c | 24 ++- lib/test_firmware.c | 154 ++++++++++++-- security/integrity/digsig.c | 8 +- security/integrity/ima/ima_fs.c | 10 +- security/integrity/ima/ima_main.c | 73 +++++-- security/integrity/ima/ima_policy.c | 1 + security/loadpin/loadpin.c | 17 +- security/security.c | 28 ++- security/selinux/hooks.c | 8 +- .../selftests/firmware/fw_filesystem.sh | 91 +++++++++ 27 files changed, 807 insertions(+), 296 deletions(-) create mode 100644 fs/kernel_read_file.c create mode 100644 include/linux/kernel_read_file.h -- 2.25.1

5 years, 1 month

2
20
0 0

[PATCH 00/11] Introduce Simple atomic and non-atomic counters

by Shuah Khan

This patch series is a result of discussion at the refcount_t BOF the Linux Plumbers Conference. In this discussion, we identified a need for looking closely and investigating atomic_t usages in the kernel when it is used strictly as a counter without it controlling object lifetimes and state changes. There are a number of atomic_t usages in the kernel where atomic_t api is used strictly for counting and not for managing object lifetime. In some cases, atomic_t might not even be needed. The purpose of these counters is twofold: 1. clearly differentiate atomic_t counters from atomic_t usages that guard object lifetimes, hence prone to overflow and underflow errors. It allows tools that scan for underflow and overflow on atomic_t usages to detect overflow and underflows to scan just the cases that are prone to errors. 2. provides non-atomic counters for cases where atomic isn't necessary. Simple atomic and non-atomic counters api provides interfaces for simple atomic and non-atomic counters that just count, and don't guard resource lifetimes. Counters will wrap around to 0 when it overflows and should not be used to guard resource lifetimes, device usage and open counts that control state changes, and pm states. Using counter_atomic to guard lifetimes could lead to use-after free when it overflows and undefined behavior when used to manage state changes and device usage/open states. This patch series introduces Simple atomic and non-atomic counters. Counter atomic ops leverage atomic_t and provide a sub-set of atomic_t ops. In addition this patch series converts a few drivers to use the new api. The following criteria is used for select variables for conversion: 1. Variable doesn't guard object lifetimes, manage state changes e.g: device usage counts, device open counts, and pm states. 2. Variable is used for stats and counters. 3. The conversion doesn't change the overflow behavior. Changes since RFC: -- Thanks for reviews and reviewed-by, and Acked-by tags. Updated the patches with the tags. -- Addressed Kees's comments: 1. Non-atomic counters renamed to counter_simple32 and counter_simple64 to clearly indicate size. 2. Added warning for counter_simple* usage and it should be used only when there is no need for atomicity. 3. Renamed counter_atomic to counter_atomic32 to clearly indicate size. 4. Renamed counter_atomic_long to counter_atomic64 and it now uses atomic64_t ops and indicates size. 5. Test updated for the API renames. 6. Added helper functions for test results printing 7. Verified that the test module compiles in kunit env. and test module can be loaded to run the test. 8. Updated Documentation to reflect the intent to make the API restricted so it can never be used to guard object lifetimes and state management. I left _return ops for now, inc_return is necessary for now as per the discussion we had on this topic. -- Updated driver patches with API name changes. -- We discussed if binder counters can be non-atomic. For now I left them the same as the RFC patch - using counter_atomic32 -- Unrelated to this patch series: The patch series review uncovered improvements could be made to test_async_driver_probe and vmw_vmci/vmci_guest. I will track these for fixing later. Shuah Khan (11): counters: Introduce counter_simple* and counter_atomic* counters selftests:lib:test_counters: add new test for counters drivers/base: convert deferred_trigger_count and probe_count to counter_atomic32 drivers/base/devcoredump: convert devcd_count to counter_atomic32 drivers/acpi: convert seqno counter_atomic32 drivers/acpi/apei: convert seqno counter_atomic32 drivers/android/binder: convert stats, transaction_log to counter_atomic32 drivers/base/test/test_async_driver_probe: convert to use counter_atomic32 drivers/char/ipmi: convert stats to use counter_atomic32 drivers/misc/vmw_vmci: convert num guest devices counter to counter_atomic32 drivers/edac: convert pci counters to counter_atomic32 Documentation/core-api/counters.rst | 174 +++++++++ MAINTAINERS | 8 + drivers/acpi/acpi_extlog.c | 5 +- drivers/acpi/apei/ghes.c | 5 +- drivers/android/binder.c | 41 +-- drivers/android/binder_internal.h | 3 +- drivers/base/dd.c | 19 +- drivers/base/devcoredump.c | 5 +- drivers/base/test/test_async_driver_probe.c | 23 +- drivers/char/ipmi/ipmi_msghandler.c | 9 +- drivers/char/ipmi/ipmi_si_intf.c | 9 +- drivers/edac/edac_pci.h | 5 +- drivers/edac/edac_pci_sysfs.c | 28 +- drivers/misc/vmw_vmci/vmci_guest.c | 9 +- include/linux/counters.h | 350 +++++++++++++++++++ lib/Kconfig | 10 + lib/Makefile | 1 + lib/test_counters.c | 276 +++++++++++++++ tools/testing/selftests/lib/Makefile | 1 + tools/testing/selftests/lib/config | 1 + tools/testing/selftests/lib/test_counters.sh | 5 + 21 files changed, 913 insertions(+), 74 deletions(-) create mode 100644 Documentation/core-api/counters.rst create mode 100644 include/linux/counters.h create mode 100644 lib/test_counters.c create mode 100755 tools/testing/selftests/lib/test_counters.sh -- 2.25.1

5 years, 1 month

3
15
0 0

[PATCH] selftests: splice: Adjust for handler fallback removal

by Kees Cook

Some pseudo-filesystems do not have an explicit splice fops since adding commit 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops"), and now will reject attempts to use splice() in those filesystem paths. Reported-by: kernel test robot <rong.a.chen(a)intel.com> Link: https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops") Signed-off-by: Kees Cook <keescook(a)chromium.org> --- .../selftests/splice/short_splice_read.sh | 119 ++++++++++++++---- 1 file changed, 98 insertions(+), 21 deletions(-) diff --git a/tools/testing/selftests/splice/short_splice_read.sh b/tools/testing/selftests/splice/short_splice_read.sh index 7810d3589d9a..22b6c8910b18 100755 --- a/tools/testing/selftests/splice/short_splice_read.sh +++ b/tools/testing/selftests/splice/short_splice_read.sh @@ -1,21 +1,87 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 +# +# Test for mishandling of splice() on pseudofilesystems, which should catch +# bugs like 11990a5bd7e5 ("module: Correctly truncate sysfs sections output") +# +# Since splice fallback was removed as part of the set_fs() rework, many of these +# tests expect to fail now. See https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/ set -e +DIR=$(dirname "$0") + ret=0 +expect_success() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "ok: $title succeeded" >&2 + ;; + 1) + echo "FAIL: $title should work" >&2 + ret=$(( ret + 1 )) + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + +expect_failure() +{ + title="$1" + shift + + echo "" >&2 + echo "$title ..." >&2 + + set +e + "$@" + rc=$? + set -e + + case "$rc" in + 0) + echo "FAIL: $title unexpectedly worked" >&2 + ret=$(( ret + 1 )) + ;; + 1) + echo "ok: $title correctly failed" >&2 + ;; + *) + echo "FAIL: something else went wrong" >&2 + ret=$(( ret + 1 )) + ;; + esac +} + do_splice() { filename="$1" bytes="$2" expected="$3" + report="$4" - out=$(./splice_read "$filename" "$bytes" | cat) + out=$("$DIR"/splice_read "$filename" "$bytes" | cat) if [ "$out" = "$expected" ] ; then - echo "ok: $filename $bytes" + echo " matched $report" >&2 + return 0 else - echo "FAIL: $filename $bytes" - ret=1 + echo " no match: '$out' vs $report" >&2 + return 1 fi } @@ -23,34 +89,45 @@ test_splice() { filename="$1" + echo " checking $filename ..." >&2 + full=$(cat "$filename") + rc=$? + if [ $rc -ne 0 ] ; then + return 2 + fi + two=$(echo "$full" | grep -m1 . | cut -c-2) # Make sure full splice has the same contents as a standard read. - do_splice "$filename" 4096 "$full" + echo " splicing 4096 bytes ..." >&2 + if ! do_splice "$filename" 4096 "$full" "full read" ; then + return 1 + fi # Make sure a partial splice see the first two characters. - do_splice "$filename" 2 "$two" + echo " splicing 2 bytes ..." >&2 + if ! do_splice "$filename" 2 "$two" "'$two'" ; then + return 1 + fi + + return 0 } -# proc_single_open(), seq_read() -test_splice /proc/$$/limits -# special open, seq_read() -test_splice /proc/$$/comm +### /proc/$pid/ has no splice interface; these should all fail. +expect_failure "proc_single_open(), seq_read() splice" test_splice /proc/$$/limits +expect_failure "special open(), seq_read() splice" test_splice /proc/$$/comm -# proc_handler, proc_dointvec_minmax -test_splice /proc/sys/fs/nr_open -# proc_handler, proc_dostring -test_splice /proc/sys/kernel/modprobe -# proc_handler, special read -test_splice /proc/sys/kernel/version +### /proc/sys/ has a splice interface; these should all succeed. +expect_success "proc_handler: proc_dointvec_minmax() splice" test_splice /proc/sys/fs/nr_open +expect_success "proc_handler: proc_dostring() splice" test_splice /proc/sys/kernel/modprobe +expect_success "proc_handler: special read splice" test_splice /proc/sys/kernel/version +### /sys/ has no splice interface; these should all fail. if ! [ -d /sys/module/test_module/sections ] ; then - modprobe test_module + expect_success "test_module kernel module load" modprobe test_module fi -# kernfs, attr -test_splice /sys/module/test_module/coresize -# kernfs, binattr -test_splice /sys/module/test_module/sections/.init.text +expect_failure "kernfs attr splice" test_splice /sys/module/test_module/coresize +expect_failure "kernfs binattr splice" test_splice /sys/module/test_module/sections/.init.text exit $ret -- 2.25.1

5 years, 1 month

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[PATCH v2 0/6] kselftest: arm64/mte: Tests for user-space MTE

by Amit Daniel Kachhap

These patch series adds below kselftests to test the user-space support for the ARMv8.5 Memory Tagging Extension present in arm64 tree [1]. This patch series is based on Linux v5.9-rc3. 1) This test-case verifies that the memory allocated by kernel mmap interface can support tagged memory access. It first checks the presence of tags at address[56:59] and then proceeds with read and write. The pass criteria for this test is that tag fault exception should not happen. 2) This test-case crosses the valid memory to the invalid memory. In this memory area valid tags are not inserted so read and write should not pass. The pass criteria for this test is that tag fault exception should happen for all the illegal addresses. This test also verfies that PSTATE.TCO works properly. 3) This test-case verifies that the memory inherited by child process from parent process should have same tags copied. The pass criteria for this test is that tag fault exception should not happen. 4) This test checks different mmap flags with PROT_MTE memory protection. 5) This testcase checks that KSM should not merge pages containing different MTE tag values. However, if the tags are same then the pages may merge. This testcase uses the generic ksm sysfs interfaces to verify the MTE behaviour, so this testcase is not fullproof and may be impacted due to other load in the system. 6) Fifth test verifies that syscalls read/write etc works by considering that user pointer has valid/invalid allocation tags. Changes since v1 [2]: * Redefined MTE kernel header definitions to decouple kselftest compilations. * Removed gmi masking instructions in mte_insert_random_tag assembly function. This simplifies the tag inclusion mask test with only GCR mask register used. * Created a new mte_insert_random_tag function with gmi instruction. This is useful for the 6th test which reuses the original tag. * Now use /dev/shm/* to hold temporary files. * Updated the 6th test to handle the error properly in case of failure in accessing memory with invalid tag in kernel. * Code and comment clean-ups. Thanks, Amit Daniel [1]: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/mte [2]: https://patchwork.kernel.org/patch/11747791/ Amit Daniel Kachhap (6): kselftest/arm64: Add utilities and a test to validate mte memory kselftest/arm64: Verify mte tag inclusion via prctl kselftest/arm64: Check forked child mte memory accessibility kselftest/arm64: Verify all different mmap MTE options kselftest/arm64: Verify KSM page merge for MTE pages kselftest/arm64: Check mte tagged user address in kernel tools/testing/selftests/arm64/Makefile | 2 +- tools/testing/selftests/arm64/mte/.gitignore | 6 + tools/testing/selftests/arm64/mte/Makefile | 29 ++ .../selftests/arm64/mte/check_buffer_fill.c | 475 ++++++++++++++++++ .../selftests/arm64/mte/check_child_memory.c | 195 +++++++ .../selftests/arm64/mte/check_ksm_options.c | 159 ++++++ .../selftests/arm64/mte/check_mmap_options.c | 262 ++++++++++ .../arm64/mte/check_tags_inclusion.c | 185 +++++++ .../selftests/arm64/mte/check_user_mem.c | 111 ++++ .../selftests/arm64/mte/mte_common_util.c | 341 +++++++++++++ .../selftests/arm64/mte/mte_common_util.h | 118 +++++ tools/testing/selftests/arm64/mte/mte_def.h | 60 +++ .../testing/selftests/arm64/mte/mte_helper.S | 128 +++++ 13 files changed, 2070 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/arm64/mte/.gitignore create mode 100644 tools/testing/selftests/arm64/mte/Makefile create mode 100644 tools/testing/selftests/arm64/mte/check_buffer_fill.c create mode 100644 tools/testing/selftests/arm64/mte/check_child_memory.c create mode 100644 tools/testing/selftests/arm64/mte/check_ksm_options.c create mode 100644 tools/testing/selftests/arm64/mte/check_mmap_options.c create mode 100644 tools/testing/selftests/arm64/mte/check_tags_inclusion.c create mode 100644 tools/testing/selftests/arm64/mte/check_user_mem.c create mode 100644 tools/testing/selftests/arm64/mte/mte_common_util.c create mode 100644 tools/testing/selftests/arm64/mte/mte_common_util.h create mode 100644 tools/testing/selftests/arm64/mte/mte_def.h create mode 100644 tools/testing/selftests/arm64/mte/mte_helper.S -- 2.17.1

5 years, 1 month

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[PATCH v3 0/5] Speed up mremap on large regions

by Kalesh Singh

This version 3 of the mremap speed up patches previously posted at: v1 - https://lore.kernel.org/r/20200930222130.4175584-1-kaleshsingh@google.com v2 - https://lore.kernel.org/r/20201002162101.665549-1-kaleshsingh@google.com mremap time can be optimized by moving entries at the PMD/PUD level if the source and destination addresses are PMD/PUD-aligned and PMD/PUD-sized. Enable moving at the PMD and PUD levels on arm64 and x86. Other architectures where this type of move is supported and known to be safe can also opt-in to these optimizations by enabling HAVE_MOVE_PMD and HAVE_MOVE_PUD. Observed Performance Improvements for remapping a PUD-aligned 1GB-sized region on x86 and arm64: - HAVE_MOVE_PMD is already enabled on x86 : N/A - Enabling HAVE_MOVE_PUD on x86 : ~13x speed up - Enabling HAVE_MOVE_PMD on arm64 : ~ 8x speed up - Enabling HAVE_MOVE_PUD on arm64 : ~19x speed up Altogether, HAVE_MOVE_PMD and HAVE_MOVE_PUD give a total of ~150x speed up on arm64. Changes in v2: - Reduce mremap_test time by only validating a configurable threshold of the remapped region, as per John. - Use a random pattern for mremap validation. Provide pattern seed in test output, as per John. - Moved set_pud_at() to separate patch, per Kirill. - Use switch() instead of ifs in move_pgt_entry(), per Kirill. - Update commit message with description of Android garbage collector use case for HAVE_MOVE_PUD, as per Joel. - Fix build test error reported by kernel test robot in [1]. Changes in v3: - Make lines 80 cols or less where they don’t need to be longer, per John. - Removed unused PATTERN_SIZE in mremap_test - Added Reviewed-by tag for patch 1/5 (mremap kselftest patch). - Use switch() instead of ifs in get_extent(), per Kirill - Add BUILD_BUG() is get_extent() default case. - Move get_old_pud() and alloc_new_pud() out of #ifdef CONFIG_HAVE_MOVE_PUD, per Kirill. - Have get_old_pmd() and alloc_new_pmd() use get_old_pud() and alloc_old_pud(), per Kirill. - Replace #ifdef CONFIG_HAVE_MOVE_PMD / PUD in move_page_tables() with IS_ENABLED(CONFIG_HAVE_MOVE_PMD / PUD), per Kirill. - Fold Add set_pud_at() patch into patch 4/5, per Kirill. [1] https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org/thread/CKPGL4F… Kalesh Singh (5): kselftests: vm: Add mremap tests arm64: mremap speedup - Enable HAVE_MOVE_PMD mm: Speedup mremap on 1GB or larger regions arm64: mremap speedup - Enable HAVE_MOVE_PUD x86: mremap speedup - Enable HAVE_MOVE_PUD arch/Kconfig | 7 + arch/arm64/Kconfig | 2 + arch/arm64/include/asm/pgtable.h | 1 + arch/x86/Kconfig | 1 + mm/mremap.c | 230 ++++++++++++--- tools/testing/selftests/vm/.gitignore | 1 + tools/testing/selftests/vm/Makefile | 1 + tools/testing/selftests/vm/mremap_test.c | 344 +++++++++++++++++++++++ tools/testing/selftests/vm/run_vmtests | 11 + 9 files changed, 558 insertions(+), 40 deletions(-) create mode 100644 tools/testing/selftests/vm/mremap_test.c base-commit: 549738f15da0e5a00275977623be199fbbf7df50 -- 2.28.0.806.g8561365e88-goog

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