From: Cristian Marussi <cristian.marussi@arm.com> To: linux-kselftest@vger.kernel.org, linux-arm-kernel@lists.infradead.org, shuah@kernel.org Cc: andreyknvl@google.com, dave.martin@arm.com Subject: [PATCH v3 03/11] kselftest: arm64: mangle_pstate_invalid_daif_bits Date: Fri, 2 Aug 2019 18:02:52 +0100 Message-ID: <20190802170300.20662-4-cristian.marussi@arm.com> (raw) In-Reply-To: <20190802170300.20662-1-cristian.marussi@arm.com> Added a simple mangle testcase which messes with the ucontext_t from within the sig_handler, trying to set PSTATE DAIF bits to an invalid value (masking everything). Expects SIGSEGV on test PASS. Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> --- .../arm64/signal/testcases/.gitignore | 1 + .../mangle_pstate_invalid_daif_bits.c | 28 +++++++++++++++++++ 2 files changed, 29 insertions(+) create mode 100644 tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_daif_bits.c diff --git a/tools/testing/selftests/arm64/signal/testcases/.gitignore b/tools/testing/selftests/arm64/signal/testcases/.gitignore index 8651272e3cfc..8a0a29f0cc2a 100644 --- a/tools/testing/selftests/arm64/signal/testcases/.gitignore +++ b/tools/testing/selftests/arm64/signal/testcases/.gitignore @@ -1 +1,2 @@ mangle_pstate_invalid_compat_toggle +mangle_pstate_invalid_daif_bits diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_daif_bits.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_daif_bits.c new file mode 100644 index 000000000000..af899d4bb655 --- /dev/null +++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_daif_bits.c @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2019 ARM Limited */ + +#include "test_signals_utils.h" +#include "testcases.h" + +static int mangle_invalid_pstate_run(struct tdescr *td, siginfo_t *si, + ucontext_t *uc) +{ + ASSERT_GOOD_CONTEXT(uc); + + /* + * This config should trigger a SIGSEGV by Kernel when it checks + * the sigframe consistency in valid_user_regs() routine. + */ + uc->uc_mcontext.pstate |= PSR_D_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT; + + return 1; +} + +struct tdescr tde = { + .sanity_disabled = true, + .name = "MANGLE_PSTATE_INVALID_DAIF_BITS", + .descr = "Mangling uc_mcontext with INVALID DAIF_BITS", + .sig_trig = SIGUSR1, + .sig_ok = SIGSEGV, + .run = mangle_invalid_pstate_run, +}; -- 2.17.1
next prev parent reply index Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-02 17:02 [PATCH v3 00/11] Add arm64/signal initial kselftest support Cristian Marussi 2019-08-02 17:02 ` [PATCH v3 01/11] kselftest: arm64: introduce new boilerplate code Cristian Marussi 2019-08-13 16:23 ` Dave Martin 2019-08-27 12:14 ` Cristian Marussi 2019-08-02 17:02 ` [PATCH v3 02/11] kselftest: arm64: adds first test and common utils Cristian Marussi 2019-08-06 15:50 ` Cristian Marussi 2019-08-07 15:42 ` Cristian Marussi 2019-08-09 10:54 ` Cristian Marussi 2019-08-09 11:16 ` Dave Martin 2019-08-09 12:20 ` Cristian Marussi 2019-08-09 12:32 ` Dave Martin 2019-08-12 12:43 ` Amit Kachhap 2019-08-13 13:22 ` Cristian Marussi 2019-08-14 10:22 ` Amit Kachhap 2019-08-27 14:24 ` Cristian Marussi 2019-08-13 16:24 ` Dave Martin 2019-08-28 17:34 ` Cristian Marussi 2019-09-03 15:34 ` Dave Martin 2019-09-03 16:08 ` Cristian Marussi 2019-08-02 17:02 ` Cristian Marussi [this message] 2019-08-13 16:24 ` [PATCH v3 03/11] kselftest: arm64: mangle_pstate_invalid_daif_bits Dave Martin 2019-08-29 10:19 ` Cristian Marussi 2019-08-02 17:02 ` [PATCH v3 04/11] kselftest: arm64: mangle_pstate_invalid_mode_el Cristian Marussi 2019-08-13 16:24 ` Dave Martin 2019-08-29 11:50 ` Cristian Marussi 2019-08-02 17:02 ` [PATCH v3 05/11] kselftest: arm64: mangle_pstate_ssbs_regs Cristian Marussi 2019-08-13 16:25 ` Dave Martin 2019-08-29 15:35 ` Cristian Marussi 2019-08-02 17:02 ` [PATCH v3 06/11] kselftest: arm64: fake_sigreturn_bad_magic Cristian Marussi 2019-08-13 16:25 ` Dave Martin 2019-08-30 14:29 ` Cristian Marussi 2019-09-04 10:05 ` Dave Martin 2019-09-04 10:37 ` Cristian Marussi 2019-09-04 10:47 ` Dave Martin 2019-08-02 17:02 ` [PATCH v3 07/11] kselftest: arm64: fake_sigreturn_bad_size_for_magic0 Cristian Marussi 2019-08-13 16:25 ` Dave Martin 2019-08-30 14:49 ` Cristian Marussi 2019-08-02 17:02 ` [PATCH v3 08/11] kselftest: arm64: fake_sigreturn_missing_fpsimd Cristian Marussi 2019-08-13 16:26 ` Dave Martin 2019-08-30 14:55 ` Cristian Marussi 2019-08-02 17:02 ` [PATCH v3 09/11] kselftest: arm64: fake_sigreturn_duplicated_fpsimd Cristian Marussi 2019-08-13 16:26 ` Dave Martin 2019-08-30 15:11 ` Cristian Marussi 2019-08-02 17:02 ` [PATCH v3 10/11] kselftest: arm64: fake_sigreturn_bad_size Cristian Marussi 2019-08-13 16:26 ` Dave Martin 2019-08-30 15:21 ` Cristian Marussi 2019-08-02 17:03 ` [PATCH v3 11/11] kselftest: arm64: fake_sigreturn_misaligned_sp Cristian Marussi 2019-08-07 16:04 ` Cristian Marussi 2019-08-13 16:28 ` Dave Martin 2019-08-30 15:22 ` Cristian Marussi 2019-08-13 16:27 ` Dave Martin 2019-08-30 16:33 ` Cristian Marussi 2019-08-13 16:22 ` [PATCH v3 00/11] Add arm64/signal initial kselftest support Dave Martin 2019-08-30 16:40 ` Cristian Marussi 2019-09-02 10:53 ` Dave Martin 2019-09-02 11:30 ` Cristian Marussi
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