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

[PATCH 0/2] Modify the watchdog selftest for execution with kselftest runner

by Laura Nao

The watchdog selftest script supports various parameters for testing different IOCTLs. The watchdog ping functionality is validated by starting a loop where the watchdog device is periodically pet, which can only be stopped by the user interrupting the script. This results in a timeout when running this test using the kselftest runner with no non-oneshot parameters (or no parameters at all): TAP version 13 1..1 # timeout set to 45 # selftests: watchdog: watchdog-test # Watchdog Ticking Away! # .............................................# not ok 1 selftests: watchdog: watchdog-test # TIMEOUT 45 seconds To address this issue, the first patch in this series limits the loop to 5 iterations by default and adds support for a new '-c' option to customize the number of pings as required. The second patch conforms the test output to the KTAP format. Laura Nao (2): selftests/watchdog: limit ping loop and allow configuring the number of pings selftests/watchdog: convert the test output to KTAP format .../selftests/watchdog/watchdog-test.c | 166 +++++++++++------- 1 file changed, 101 insertions(+), 65 deletions(-) -- 2.30.2

6 months, 2 weeks

2
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[PATCH bpf-next v6 0/9] use network helpers, part 8

by Geliang Tang

From: Geliang Tang <tanggeliang(a)kylinos.cn> v6: - update patch 6 as Daniel suggested. (thanks) v5: - keep make_server and make_client as Eduard suggested. v4: - a new patch to use make_sockaddr in sockmap_ktls. - a new patch to close fd in error path in drop_on_reuseport. - drop make_server() in patch 7. - drop make_client() too in patch 9. v3: - a new patch to add backlog for network_helper_opts. - use start_server_str in sockmap_ktls now, not start_server. v2: - address Eduard's comments in v1. (thanks) - fix errors reported by CI. This patch set uses network helpers in sockmap_ktls and sk_lookup, and drop three local helpers tcp_server(), inetaddr_len() and make_socket() in them. Geliang Tang (9): selftests/bpf: Add backlog for network_helper_opts selftests/bpf: Use start_server_str in sockmap_ktls selftests/bpf: Use connect_to_fd in sockmap_ktls selftests/bpf: Use make_sockaddr in sockmap_ktls selftests/bpf: Close fd in error path in drop_on_reuseport selftests/bpf: Use start_server_str in sk_lookup selftests/bpf: Use connect_to_fd in sk_lookup selftests/bpf: Use connect_to_addr in sk_lookup selftests/bpf: Drop make_socket in sk_lookup tools/testing/selftests/bpf/network_helpers.c | 2 +- tools/testing/selftests/bpf/network_helpers.h | 1 + .../selftests/bpf/prog_tests/sk_lookup.c | 141 +++++++----------- .../selftests/bpf/prog_tests/sockmap_ktls.c | 51 ++----- 4 files changed, 61 insertions(+), 134 deletions(-) -- 2.43.0

6 months, 2 weeks

2
14
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[PATCH v2] selftests: mptcp: always close input's FD if opened

by Liu Jing

in main_loop_s function, when the open(cfg_input, O_RDONLY) function is run, the last fd is not closed if the "--cfg_repeat > 0" branch is not taken. Fixes: 05be5e273c84("selftests: mptcp: add disconnect tests"). Signed-off-by: Liu Jing <liujing(a)cmss.chinamobile.com> --- Changes from v1 - add close function in main_loop_s function --- tools/testing/selftests/net/mptcp/mptcp_connect.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c index d2043ec3bf6d..48b7389ae75b 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_connect.c +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c @@ -1119,7 +1119,8 @@ int main_loop_s(int listensock) if (cfg_input) close(fd); goto again; - } + } else + close(fd); return 0; } -- 2.33.0

6 months, 2 weeks

2
1
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[PATCH v4 00/13] riscv: Add support for xtheadvector

by Charlie Jenkins

xtheadvector is a custom extension that is based upon riscv vector version 0.7.1 [1]. All of the vector routines have been modified to support this alternative vector version based upon whether xtheadvector was determined to be supported at boot. vlenb is not supported on the existing xtheadvector hardware, so a devicetree property thead,vlenb is added to provide the vlenb to Linux. There is a new hwprobe key RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0 that is used to request which thead vendor extensions are supported on the current platform. This allows future vendors to allocate hwprobe keys for their vendor. Support for xtheadvector is also added to the vector kselftests. Signed-off-by: Charlie Jenkins <charlie(a)rivosinc.com> [1] https://github.com/T-head-Semi/thead-extension-spec/blob/95358cb2cca9489361… --- This series is a continuation of a different series that was fragmented into two other series in an attempt to get part of it merged in the 6.10 merge window. The split-off series did not get merged due to a NAK on the series that added the generic riscv,vlenb devicetree entry. This series has converted riscv,vlenb to thead,vlenb to remedy this issue. The original series is titled "riscv: Support vendor extensions and xtheadvector" [3]. The series titled "riscv: Extend cpufeature.c to detect vendor extensions" is still under development and this series is based on that series! [4] I have tested this with an Allwinner Nezha board. I ran into issues booting the board after 6.9-rc1 so I applied these patches to 6.8. There are a couple of minor merge conflicts that do arrise when doing that, so please let me know if you have been able to boot this board with a 6.9 kernel. I used SkiffOS [1] to manage building the image, but upgraded the U-Boot version to Samuel Holland's more up-to-date version [2] and changed out the device tree used by U-Boot with the device trees that are present in upstream linux and this series. Thank you Samuel for all of the work you did to make this task possible. [1] https://github.com/skiffos/SkiffOS/tree/master/configs/allwinner/nezha [2] https://github.com/smaeul/u-boot/commit/2e89b706f5c956a70c989cd31665f1429e9… [3] https://lore.kernel.org/all/20240503-dev-charlie-support_thead_vector_6_9-v… [4] https://lore.kernel.org/linux-riscv/20240609-support_vendor_extensions-v2-0… --- Changes in v4: - Replace inline asm with C (Samuel) - Rename VCSRs to CSRs (Samuel) - Replace .insn directives with .4byte directives - Link to v3: https://lore.kernel.org/r/20240619-xtheadvector-v3-0-bff39eb9668e@rivosinc.… Changes in v3: - Add back Heiko's signed-off-by (Conor) - Mark RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0 as a bitmask - Link to v2: https://lore.kernel.org/r/20240610-xtheadvector-v2-0-97a48613ad64@rivosinc.… Changes in v2: - Removed extraneous references to "riscv,vlenb" (Jess) - Moved declaration of "thead,vlenb" into cpus.yaml and added restriction that it's only applicable to thead cores (Conor) - Check CONFIG_RISCV_ISA_XTHEADVECTOR instead of CONFIG_RISCV_ISA_V for thead,vlenb (Jess) - Fix naming of hwprobe variables (Evan) - Link to v1: https://lore.kernel.org/r/20240609-xtheadvector-v1-0-3fe591d7f109@rivosinc.… --- Charlie Jenkins (12): dt-bindings: riscv: Add xtheadvector ISA extension description dt-bindings: cpus: add a thead vlen register length property riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree riscv: Add thead and xtheadvector as a vendor extension riscv: vector: Use vlenb from DT for thead riscv: csr: Add CSR encodings for CSR_VXRM/CSR_VXSAT riscv: Add xtheadvector instruction definitions riscv: vector: Support xtheadvector save/restore riscv: hwprobe: Add thead vendor extension probing riscv: hwprobe: Document thead vendor extensions and xtheadvector extension selftests: riscv: Fix vector tests selftests: riscv: Support xtheadvector in vector tests Heiko Stuebner (1): RISC-V: define the elements of the VCSR vector CSR Documentation/arch/riscv/hwprobe.rst | 10 + Documentation/devicetree/bindings/riscv/cpus.yaml | 19 ++ .../devicetree/bindings/riscv/extensions.yaml | 10 + arch/riscv/Kconfig.vendor | 26 ++ arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi | 3 +- arch/riscv/include/asm/cpufeature.h | 2 + arch/riscv/include/asm/csr.h | 15 ++ arch/riscv/include/asm/hwprobe.h | 5 +- arch/riscv/include/asm/switch_to.h | 2 +- arch/riscv/include/asm/vector.h | 224 ++++++++++++---- arch/riscv/include/asm/vendor_extensions/thead.h | 42 +++ .../include/asm/vendor_extensions/thead_hwprobe.h | 18 ++ .../include/asm/vendor_extensions/vendor_hwprobe.h | 37 +++ arch/riscv/include/uapi/asm/hwprobe.h | 3 +- arch/riscv/include/uapi/asm/vendor/thead.h | 3 + arch/riscv/kernel/cpufeature.c | 51 +++- arch/riscv/kernel/kernel_mode_vector.c | 8 +- arch/riscv/kernel/process.c | 4 +- arch/riscv/kernel/signal.c | 6 +- arch/riscv/kernel/sys_hwprobe.c | 5 + arch/riscv/kernel/vector.c | 25 +- arch/riscv/kernel/vendor_extensions.c | 10 + arch/riscv/kernel/vendor_extensions/Makefile | 2 + arch/riscv/kernel/vendor_extensions/thead.c | 18 ++ .../riscv/kernel/vendor_extensions/thead_hwprobe.c | 19 ++ tools/testing/selftests/riscv/vector/.gitignore | 3 +- tools/testing/selftests/riscv/vector/Makefile | 17 +- .../selftests/riscv/vector/v_exec_initval_nolibc.c | 93 +++++++ tools/testing/selftests/riscv/vector/v_helpers.c | 67 +++++ tools/testing/selftests/riscv/vector/v_helpers.h | 7 + tools/testing/selftests/riscv/vector/v_initval.c | 22 ++ .../selftests/riscv/vector/v_initval_nolibc.c | 68 ----- .../selftests/riscv/vector/vstate_exec_nolibc.c | 20 +- .../testing/selftests/riscv/vector/vstate_prctl.c | 295 ++++++++++++--------- 34 files changed, 888 insertions(+), 271 deletions(-) --- base-commit: 11cc01d4d2af304b7288251aad7e03315db8dffc change-id: 20240530-xtheadvector-833d3d17b423 -- - Charlie

6 months, 2 weeks

1
13
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[PATCH v2 0/3] tracing: Support poll on event hist file

by Masami Hiramatsu (Google)

Hi, Here is the v2 patch to support polling on event 'hist' file. The previous version is here; https://lore.kernel.org/all/171932861260.584123.15653284949837094747.stgit@… This version updates the test program, because previous version will return fail on stable kernels which does not have this feature. This checks whether the poll(POLLIN) on hist is timeout or not without sending event. If poll() is implemented, it should timed out. If not, poll(POLLIN) retuns soon. And it tests both of POLLIN and POLLPRI in this version. Background ---------- There has been interest in allowing user programs to monitor kernel events in real time. Ftrace provides `trace_pipe` interface to wait on events in the ring buffer, but it is needed to wait until filling up a page with events in the ring buffer. We can also peek the `trace` file periodically, but that is inefficient way to monitor a randomely happening event. Overview -------- This patch set allows user to `poll`(or `select`, `epoll`) on event histogram interface. As you know each event has its own `hist` file which shows histograms generated by trigger action. So user can set a new hist trigger on any event you want to monitor, and poll on the `hist` file until it is updated. There are 2 poll events are supported, POLLIN and POLLPRI. POLLIN means that there are any readable update on `hist` file and this event will be flashed only when you call read(). So, this is useful if you want to read the histogram periodically. The other POLLPRI event is for monitoring trace event. Like the POLLIN, this will be returned when the histogram is updated, but you don't need to read() the file and use poll() again. Note that this waits for histogram update (not event arrival), thus you must set a histogram on the event at first. Usage ----- Here is an example usage: ---- TRACEFS=/sys/kernel/tracing EVENT=$TRACEFS/events/sched/sched_process_free # setup histogram trigger and enable event echo "hist:key=comm" >> $EVENT/trigger echo 1 > $EVENT/enable # Wait for update poll pri $EVENT/hist # Event arrived. echo "process free event is comming" tail $TRACEFS/trace ---- The 'poll' command is in the selftest patch. You can take this series also from here; https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git/log/?h=t… Thank you, --- Masami Hiramatsu (Google) (3): tracing/hist: Add poll(POLLIN) support on hist file tracing/hist: Support POLLPRI event for poll on histogram selftests/tracing: Add hist poll() support test include/linux/trace_events.h | 5 + kernel/trace/trace_events.c | 18 ++++ kernel/trace/trace_events_hist.c | 101 +++++++++++++++++++- tools/testing/selftests/ftrace/Makefile | 2 tools/testing/selftests/ftrace/poll.c | 62 ++++++++++++ .../ftrace/test.d/trigger/trigger-hist-poll.tc | 74 +++++++++++++++ 6 files changed, 259 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/ftrace/poll.c create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-poll.tc -- Masami Hiramatsu (Google) <mhiramat(a)kernel.org>

6 months, 2 weeks

1
3
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[RFC PATCH 0/3] tracing: Support poll on event hist file

by Masami Hiramatsu (Google)

Hi, Here is an RFC patch to support polling on event 'hist' file. There has been interest in allowing user programs to monitor kernel events in real time. Ftrace provides `trace_pipe` interface to wait on events in the ring buffer, but it is needed to wait until filling up a page with events in the ring buffer. We can also peek the `trace` file periodically, but that is inefficient way to monitor a randomely happening event. This patch set allows user to `poll`(or `select`, `epoll`) on event histogram interface. As you know each event has its own `hist` file which shows histograms generated by trigger action. So user can set a new hist trigger on any event you want to monitor, and poll on the `hist` file until it is updated. There are 2 poll events are supported, POLLIN and POLLPRI. POLLIN means that there are any readable update on `hist` file and this event will be flashed only when you call read(). So, this is useful if you want to read the histogram periodically. The other POLLPRI event is for monitoring trace event. Like the POLLIN, this will be returned when the histogram is updated, but you don't need to read() the file and use poll() again. Note that this waits for histogram update (not event arrival), thus you must set a histogram on the event at first. Here is an example usage: ---- TRACEFS=/sys/kernel/tracing EVENT=$TRACEFS/events/sched/sched_process_free # setup histogram trigger and enable event echo "hist:key=comm" >> $EVENT/trigger echo 1 > $EVENT/enable # Wait for update poll $EVENT/hist # Event arrived. echo "process free event is comming" tail $TRACEFS/trace ---- The 'poll' command is in the selftest patch. You can take this series also from here; https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git/log/?h=t… Thank you, --- Masami Hiramatsu (Google) (3): tracing/hist: Add poll(POLLIN) support on hist file tracing/hist: Support POLLPRI event for poll on histogram selftests/tracing: Add hist poll() support test include/linux/trace_events.h | 5 + kernel/trace/trace_events.c | 18 ++++ kernel/trace/trace_events_hist.c | 101 +++++++++++++++++++- tools/testing/selftests/ftrace/Makefile | 3 + tools/testing/selftests/ftrace/poll.c | 34 +++++++ .../ftrace/test.d/trigger/trigger-hist-poll.tc | 46 +++++++++ 6 files changed, 204 insertions(+), 3 deletions(-) create mode 100644 tools/testing/selftests/ftrace/poll.c create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-poll.tc -- Masami Hiramatsu (Google) <mhiramat(a)kernel.org>

6 months, 2 weeks

3
5
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[PATCH v5 00/11] clk: Add kunit tests for fixed rate and parent data

by Stephen Boyd

This patch series adds unit tests for the clk fixed rate basic type and the clk registration functions that use struct clk_parent_data. To get there, we add support for loading device tree overlays onto the live DTB along with probing platform drivers to bind to device nodes in the overlays. With this series, we're able to exercise some of the code in the common clk framework that uses devicetree lookups to find parents and the fixed rate clk code that scans device tree directly and creates clks. Please review. I Cced everyone to all the patches so they get the full context. I'm hoping I can take the whole pile through the clk tree as they all build upon each other. Or the DT part can be merged through the DT tree to reduce the dependencies. Changes from v4: https://lore.kernel.org/r/20240422232404.213174-1-sboyd@kernel.org * Picked up reviewed-by tags * Check for non-NULL device pointers before calling put_device() * Fix CFI issues with kunit actions * Introduce platform_device_prepare_wait_for_probe() helper to wait for a platform device to probe * Move platform code to lib/kunit and rename functions to have kunit prefix * Fix issue with platform wrappers messing up reference counting because they used kunit actions * New patch to populate overlay devices on root node for powerpc * Make fixed-rate binding generic single clk consumer binding Changes from v3: https://lore.kernel.org/r/20230327222159.3509818-1-sboyd@kernel.org * No longer depend on Frank's series[1] because it was merged upstream[2] * Use kunit_add_action_or_reset() to shorten code * Skip tests properly when CONFIG_OF_OVERLAY isn't set Changes from v2: https://lore.kernel.org/r/20230315183729.2376178-1-sboyd@kernel.org * Overlays don't depend on __symbols__ node * Depend on Frank's always create root node if CONFIG_OF series[1] * Added kernel-doc to KUnit API doc * Fixed some kernel-doc on functions * More test cases for fixed rate clk Changes from v1: https://lore.kernel.org/r/20230302013822.1808711-1-sboyd@kernel.org * Don't depend on UML, use unittest data approach to attach nodes * Introduce overlay loading API for KUnit * Move platform_device KUnit code to drivers/base/test * Use #define macros for constants shared between unit tests and overlays * Settle on "test" as a vendor prefix * Make KUnit wrappers have "_kunit" postfix [1] https://lore.kernel.org/r/20230317053415.2254616-1-frowand.list@gmail.com [2] https://lore.kernel.org/r/20240308195737.GA1174908-robh@kernel.org Stephen Boyd (11): of/platform: Allow overlays to create platform devices from the root node of: Add test managed wrappers for of_overlay_apply()/of_node_put() dt-bindings: vendor-prefixes: Add "test" vendor for KUnit and friends dt-bindings: test: Add KUnit empty node binding of: Add a KUnit test for overlays and test managed APIs platform: Add test managed platform_device/driver APIs dt-bindings: test: Add single clk consumer clk: Add test managed clk provider/consumer APIs clk: Add KUnit tests for clk fixed rate basic type dt-bindings: clk: Add clk_parent_data test clk: Add KUnit tests for clks registered with struct clk_parent_data Documentation/dev-tools/kunit/api/clk.rst | 10 + Documentation/dev-tools/kunit/api/index.rst | 21 + Documentation/dev-tools/kunit/api/of.rst | 13 + .../dev-tools/kunit/api/platformdevice.rst | 10 + .../bindings/clock/test,clk-parent-data.yaml | 47 ++ .../devicetree/bindings/test/test,empty.yaml | 30 ++ .../test/test,single-clk-consumer.yaml | 34 ++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + drivers/clk/.kunitconfig | 2 + drivers/clk/Kconfig | 9 + drivers/clk/Makefile | 9 +- drivers/clk/clk-fixed-rate_test.c | 379 +++++++++++++++ drivers/clk/clk-fixed-rate_test.h | 8 + drivers/clk/clk_kunit_helpers.c | 204 ++++++++ drivers/clk/clk_parent_data_test.h | 10 + drivers/clk/clk_test.c | 451 +++++++++++++++++- drivers/clk/kunit_clk_fixed_rate_test.dtso | 19 + drivers/clk/kunit_clk_parent_data_test.dtso | 28 ++ drivers/of/.kunitconfig | 1 + drivers/of/Kconfig | 10 + drivers/of/Makefile | 2 + drivers/of/kunit_overlay_test.dtso | 9 + drivers/of/of_kunit_helpers.c | 74 +++ drivers/of/overlay_test.c | 116 +++++ drivers/of/platform.c | 9 +- include/kunit/clk.h | 28 ++ include/kunit/of.h | 115 +++++ include/kunit/platform_device.h | 20 + lib/kunit/Makefile | 4 +- lib/kunit/platform-test.c | 223 +++++++++ lib/kunit/platform.c | 302 ++++++++++++ 31 files changed, 2193 insertions(+), 6 deletions(-) create mode 100644 Documentation/dev-tools/kunit/api/clk.rst create mode 100644 Documentation/dev-tools/kunit/api/of.rst create mode 100644 Documentation/dev-tools/kunit/api/platformdevice.rst create mode 100644 Documentation/devicetree/bindings/clock/test,clk-parent-data.yaml create mode 100644 Documentation/devicetree/bindings/test/test,empty.yaml create mode 100644 Documentation/devicetree/bindings/test/test,single-clk-consumer.yaml create mode 100644 drivers/clk/clk-fixed-rate_test.c create mode 100644 drivers/clk/clk-fixed-rate_test.h create mode 100644 drivers/clk/clk_kunit_helpers.c create mode 100644 drivers/clk/clk_parent_data_test.h create mode 100644 drivers/clk/kunit_clk_fixed_rate_test.dtso create mode 100644 drivers/clk/kunit_clk_parent_data_test.dtso create mode 100644 drivers/of/kunit_overlay_test.dtso create mode 100644 drivers/of/of_kunit_helpers.c create mode 100644 drivers/of/overlay_test.c create mode 100644 include/kunit/clk.h create mode 100644 include/kunit/of.h create mode 100644 include/kunit/platform_device.h create mode 100644 lib/kunit/platform-test.c create mode 100644 lib/kunit/platform.c base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 -- https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git/ https://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi.git

6 months, 2 weeks

5
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[GIT PULL] Kselftest fixes for Linux 6.10-rc7

by Shuah Khan

Hi Linus, Please pull this kselftest fixes update for Linux 6.10-rc7. This kselftest fixes update for Linux 6.10-rc7 consists of one single patch to fix the non-contiguous CBM resctrl: - AMD supports non-contiguous CBM but does not report it via CPUID. This test should not use CPUID on AMD to detect non-contiguous CBM support. Fix the problem so the test uses CPUID to discover non-contiguous CBM support only on Intel. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit ed3994ac847e0d6605f248e7f6776b1d4f445f4b: selftests/fchmodat2: fix clang build failure due to -static-libasan (2024-06-11 15:05:05 -0600) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux_kselftest-fixes-6.10-rc7 for you to fetch changes up to 48236960c06d32370bfa6f2cc408e786873262c8: selftests/resctrl: Fix non-contiguous CBM for AMD (2024-06-26 13:22:34 -0600) ---------------------------------------------------------------- linux_kselftest-fixes-6.10-rc7 This kselftest fixes update for Linux 6.10-rc7 consists of one single patch to fix the non-contiguous CBM resctrl: - AMD supports non-contiguous CBM but does not report it via CPUID. This test should not use CPUID on AMD to detect non-contiguous CBM support. Fix the problem so the test uses CPUID to discover non-contiguous CBM support only on Intel. ---------------------------------------------------------------- Babu Moger (1): selftests/resctrl: Fix non-contiguous CBM for AMD tools/testing/selftests/resctrl/cat_test.c | 32 ++++++++++++++++++++---------- 1 file changed, 22 insertions(+), 10 deletions(-) ----------------------------------------------------------------

6 months, 2 weeks

2
1
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[PATCH v3 0/3] selftests/vDSO: fix clang build errors, and Makefile cleanup

by John Hubbard

Hi, Jason A. Donenfeld, I've added you because I ended up looking through your latest "implement getrandom() in vDSO" series [1], which also touches this Makefile, so just a heads up about upcoming (minor) merge conflicts. Changes since v2: 1. Added two patches, both of which apply solely to the Makefile. These provide a smaller, cleaner, and more accurate Makefile. 2. Added Reviewed-by and Tested-by tags for the original patch, which fixes all of the clang errors and warnings for this selftest. 3. Removed an obsolete blurb from the commit description of the original patch, now that Valentin Obst LLVM build fix has been merged. [1] https://lore.kernel.org/20240614190646.2081057-1-Jason@zx2c4.com John Hubbard (3): selftests/vDSO: fix clang build errors and warnings selftests/mm: remove partially duplicated "all:" target in Makefile selftests/vDSO: remove duplicate compiler invocations from Makefile tools/testing/selftests/vDSO/Makefile | 29 ++++++++----------- tools/testing/selftests/vDSO/parse_vdso.c | 16 ++++++---- .../selftests/vDSO/vdso_standalone_test_x86.c | 18 ++++++++++-- 3 files changed, 39 insertions(+), 24 deletions(-) base-commit: 2ccbdf43d5e758f8493a95252073cf9078a5fea5 -- 2.45.2

6 months, 2 weeks

2
10
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[PATCH v3] selftests/capabilities: Fix possible file leak in copy_fromat_to

by Ma Ke

The open() function returns -1 on error. openat() and open() initialize 'from' and 'to', and only 'from' validated with 'if' statement. If the initialization of variable 'to' fails, we should better check the value of 'to' and close 'from' to avoid possible file leak. Improve the checking of 'from' additionally. Fixes: 32ae976ed3b5 ("selftests/capabilities: Add tests for capability evolution") Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- Changes in v3: - Thank you for your interest in our vulnerability detection method. We extract vulnerability characteristics from a known vulnerability and match the same characteristics in the project code. As our work is still in progress, we are not able to disclose it at this time. Appreciate your understanding, we could better focus on the potential vulnerability itself. Reference link: https://lore.kernel.org/all/20240510003424.2016914-1-samasth.norway.ananda@… Changes in v2: - modified the patch according to suggestions; - found by customized static analysis tool. --- tools/testing/selftests/capabilities/test_execve.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/capabilities/test_execve.c b/tools/testing/selftests/capabilities/test_execve.c index 47bad7ddc5bc..6406ab6aa1f5 100644 --- a/tools/testing/selftests/capabilities/test_execve.c +++ b/tools/testing/selftests/capabilities/test_execve.c @@ -145,10 +145,14 @@ static void chdir_to_tmpfs(void) static void copy_fromat_to(int fromfd, const char *fromname, const char *toname) { int from = openat(fromfd, fromname, O_RDONLY); - if (from == -1) + if (from < 0) ksft_exit_fail_msg("open copy source - %s\n", strerror(errno)); int to = open(toname, O_CREAT | O_WRONLY | O_EXCL, 0700); + if (to < 0) { + close(from); + ksft_exit_fail_msg("open copy destination - %s\n", strerror(errno)); + } while (true) { char buf[4096]; -- 2.25.1

6 months, 2 weeks

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