This is a note to let you know that I've just added the patch titled selftests/resctrl: Fix uninitialized .sa_flags to the 6.6-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-resctrl-fix-uninitialized-.sa_flags.patch and it can be found in the queue-6.6 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From beb7f471847663559bd0fe60af1d70e05a1d7c6c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= <ilpo.jarvinen@xxxxxxxxxxxxxxx> Date: Mon, 2 Oct 2023 12:48:07 +0300 Subject: selftests/resctrl: Fix uninitialized .sa_flags MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> commit beb7f471847663559bd0fe60af1d70e05a1d7c6c upstream. signal_handler_unregister() calls sigaction() with uninitializing sa_flags in the struct sigaction. Make sure sa_flags is always initialized in signal_handler_unregister() by initializing the struct sigaction when declaring it. Also add the initialization to signal_handler_register() even if there are no know bugs in there because correctness is then obvious from the code itself. Fixes: 73c55fa5ab55 ("selftests/resctrl: Commonize the signal handler register/unregister for all tests") Suggested-by: Reinette Chatre <reinette.chatre@xxxxxxxxx> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Reviewed-by: Reinette Chatre <reinette.chatre@xxxxxxxxx> Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/resctrl/resctrl_val.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/tools/testing/selftests/resctrl/resctrl_val.c +++ b/tools/testing/selftests/resctrl/resctrl_val.c @@ -482,7 +482,7 @@ void ctrlc_handler(int signum, siginfo_t */ int signal_handler_register(void) { - struct sigaction sigact; + struct sigaction sigact = {}; int ret = 0; sigact.sa_sigaction = ctrlc_handler; @@ -504,7 +504,7 @@ int signal_handler_register(void) */ void signal_handler_unregister(void) { - struct sigaction sigact; + struct sigaction sigact = {}; sigact.sa_handler = SIG_DFL; sigemptyset(&sigact.sa_mask); Patches currently in stable-queue which might be from ilpo.jarvinen@xxxxxxxxxxxxxxx are queue-6.6/pci-mvebu-use-field_prep-with-link-width.patch queue-6.6/platform-x86-thinkpad_acpi-add-battery-quirk-for-thi.patch queue-6.6/pci-do-error-check-on-own-line-to-split-long-if-cond.patch queue-6.6/selftests-resctrl-reduce-failures-due-to-outliers-in-mba-mbm-tests.patch queue-6.6/media-cobalt-use-field_get-to-extract-link-width.patch queue-6.6/pci-use-field_get-in-sapphire-rx-5600-xt-pulse-quirk.patch queue-6.6/pci-tegra194-use-field_get-field_prep-with-link-widt.patch queue-6.6/atm-iphase-do-pci-error-checks-on-own-line.patch queue-6.6/selftests-resctrl-fix-uninitialized-.sa_flags.patch queue-6.6/pci-use-field_get-to-extract-link-width.patch queue-6.6/selftests-resctrl-fix-feature-checks.patch queue-6.6/selftests-resctrl-move-_gnu_source-define-into-makefile.patch queue-6.6/rdma-hfi1-use-field_get-to-extract-link-width.patch queue-6.6/selftests-resctrl-remove-duplicate-feature-check-from-cmt-test.patch queue-6.6/selftests-resctrl-refactor-feature-check-to-use-resource-and-feature-name.patch