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From: Cristian Marussi <cristian.marussi@arm.com>
To: linux-kselftest@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, shuah@kernel.org
Cc: dave.martin@arm.com, andreyknvl@google.com
Subject: [PATCH 10/13] kselftest: arm64: fake_sigreturn_bad_magic
Date: Thu, 13 Jun 2019 12:13:32 +0100	[thread overview]
Message-ID: <20190613111335.7645-11-cristian.marussi@arm.com> (raw)
In-Reply-To: <20190613111335.7645-1-cristian.marussi@arm.com>

Added a simple fake_sigreturn testcase which builds a ucontext_t
with a bad magic header and place it onto the stack.
Expects a SIGSEGV on test PASS.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
 .../arm64/signal/testcases/.gitignore         |  1 +
 .../testcases/fake_sigreturn_bad_magic.c      | 42 +++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c

diff --git a/tools/testing/selftests/arm64/signal/testcases/.gitignore b/tools/testing/selftests/arm64/signal/testcases/.gitignore
index 3e6b26be6727..c353b7bd899d 100644
--- a/tools/testing/selftests/arm64/signal/testcases/.gitignore
+++ b/tools/testing/selftests/arm64/signal/testcases/.gitignore
@@ -7,3 +7,4 @@ mangle_pstate_invalid_mode_el2
 mangle_pstate_invalid_mode_el3
 mangle_pstate_ssbs_regs
 fake_sigreturn_misaligned
+fake_sigreturn_bad_magic
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c
new file mode 100644
index 000000000000..de81ea10393f
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2019 ARM Limited */
+
+#include <asm/sigcontext.h>
+#include <ucontext.h>
+#include <stdio.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct a_sigframe sf;
+
+static int fake_sigreturn_bad_magic_run(struct tdescr *td,
+					siginfo_t *si, ucontext_t *uc)
+{
+	struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf);
+
+	/* just to fill the ucontext_t with something real */
+	if (!get_current_context(td, &sf.uc))
+		return 1;
+
+	/* find the terminator, preserving existig headers */
+	head = get_terminator(head, GET_SF_RESV_SIZE(sf), NULL);
+	if (head) {
+		head->magic = 0xdeadbeef;
+		head->size = 128;
+		write_terminator(GET_RESV_NEXT_HEAD(head));
+
+		ASSERT_BAD_CONTEXT(&sf.uc);
+		fake_sigreturn(&sf, sizeof(sf), 16);
+	}
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.name = "FAKE_SIGRETURN_BAD_MAGIC",
+		.descr = "Triggers a fake sigreturn with a sigframe including a bad non-existent magic",
+		.sig_ok = SIGSEGV,
+		.timeout = 3,
+		.run = fake_sigreturn_bad_magic_run,
+};
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
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 10/13] kselftest: arm64: fake_sigreturn_bad_magic
Date: Thu, 13 Jun 2019 12:13:32 +0100	[thread overview]
Message-ID: <20190613111335.7645-11-cristian.marussi@arm.com> (raw)
In-Reply-To: <20190613111335.7645-1-cristian.marussi@arm.com>

Added a simple fake_sigreturn testcase which builds a ucontext_t
with a bad magic header and place it onto the stack.
Expects a SIGSEGV on test PASS.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
 .../arm64/signal/testcases/.gitignore         |  1 +
 .../testcases/fake_sigreturn_bad_magic.c      | 42 +++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c

diff --git a/tools/testing/selftests/arm64/signal/testcases/.gitignore b/tools/testing/selftests/arm64/signal/testcases/.gitignore
index 3e6b26be6727..c353b7bd899d 100644
--- a/tools/testing/selftests/arm64/signal/testcases/.gitignore
+++ b/tools/testing/selftests/arm64/signal/testcases/.gitignore
@@ -7,3 +7,4 @@ mangle_pstate_invalid_mode_el2
 mangle_pstate_invalid_mode_el3
 mangle_pstate_ssbs_regs
 fake_sigreturn_misaligned
+fake_sigreturn_bad_magic
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c
new file mode 100644
index 000000000000..de81ea10393f
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2019 ARM Limited */
+
+#include <asm/sigcontext.h>
+#include <ucontext.h>
+#include <stdio.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct a_sigframe sf;
+
+static int fake_sigreturn_bad_magic_run(struct tdescr *td,
+					siginfo_t *si, ucontext_t *uc)
+{
+	struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf);
+
+	/* just to fill the ucontext_t with something real */
+	if (!get_current_context(td, &sf.uc))
+		return 1;
+
+	/* find the terminator, preserving existig headers */
+	head = get_terminator(head, GET_SF_RESV_SIZE(sf), NULL);
+	if (head) {
+		head->magic = 0xdeadbeef;
+		head->size = 128;
+		write_terminator(GET_RESV_NEXT_HEAD(head));
+
+		ASSERT_BAD_CONTEXT(&sf.uc);
+		fake_sigreturn(&sf, sizeof(sf), 16);
+	}
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.name = "FAKE_SIGRETURN_BAD_MAGIC",
+		.descr = "Triggers a fake sigreturn with a sigframe including a bad non-existent magic",
+		.sig_ok = SIGSEGV,
+		.timeout = 3,
+		.run = fake_sigreturn_bad_magic_run,
+};
-- 
2.17.1


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  parent reply	other threads:[~2019-06-13 15:30 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-13 11:13 [PATCH 00/13] Add arm64/signal initial kselftest support Cristian Marussi
2019-06-13 11:13 ` Cristian Marussi
2019-06-13 11:13 ` [PATCH 01/13] kselftest: arm64: introduce new boilerplate code Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:34   ` Dave Martin
2019-06-21 10:34     ` Dave Martin
2019-06-13 11:13 ` [PATCH 02/13] kselftest: arm64: adds arm64/signal support code Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:35   ` Dave Martin
2019-06-21 10:35     ` Dave Martin
2019-06-28 18:53     ` Cristian Marussi
2019-06-28 18:53       ` Cristian Marussi
2019-06-13 11:13 ` [PATCH 03/13] kselftest: arm64: mangle_sp_misaligned Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:35   ` Dave Martin
2019-06-21 10:35     ` Dave Martin
2019-07-02 15:39     ` Cristian Marussi
2019-07-02 15:39       ` Cristian Marussi
2019-07-03  8:39       ` Dave P Martin
2019-07-03  8:39         ` Dave P Martin
2019-06-13 11:13 ` [PATCH 04/13] kselftest: arm64: mangle_pc_invalid Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:35   ` Dave Martin
2019-06-21 10:35     ` Dave Martin
2019-06-13 11:13 ` [PATCH 05/13] kselftest: arm64: mangle_pstate_invalid_daif_bits Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:35   ` Dave Martin
2019-06-21 10:35     ` Dave Martin
2019-06-13 11:13 ` [PATCH 06/13] kselftest: arm64: mangle_pstate_invalid_state_toggle Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:35   ` Dave Martin
2019-06-21 10:35     ` Dave Martin
2019-06-13 11:13 ` [PATCH 07/13] kselftest: arm64: mangle_pstate_invalid_mode_el? Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:35   ` Dave Martin
2019-06-21 10:35     ` Dave Martin
2019-06-13 11:13 ` [PATCH 08/13] kselftest: arm64: mangle_pstate_ssbs_regs Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:35   ` Dave Martin
2019-06-21 10:35     ` Dave Martin
2019-07-02 15:51     ` Cristian Marussi
2019-07-02 15:51       ` Cristian Marussi
2019-07-03  8:56       ` Dave Martin
2019-07-03  8:56         ` Dave Martin
2019-06-13 11:13 ` [PATCH 09/13] kselftest: arm64: fake_sigreturn_misaligned Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:36   ` Dave Martin
2019-06-21 10:36     ` Dave Martin
2019-06-13 11:13 ` Cristian Marussi [this message]
2019-06-13 11:13   ` [PATCH 10/13] kselftest: arm64: fake_sigreturn_bad_magic Cristian Marussi
2019-06-21 10:36   ` Dave Martin
2019-06-21 10:36     ` Dave Martin
2019-07-03 17:41     ` Cristian Marussi
2019-07-03 17:41       ` Cristian Marussi
2019-06-13 11:13 ` [PATCH 11/13] kselftest: arm64: fake_sigreturn_bad_size Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:36   ` Dave Martin
2019-06-21 10:36     ` Dave Martin
2019-07-03 17:46     ` Cristian Marussi
2019-07-03 17:46       ` Cristian Marussi
2019-06-13 11:13 ` [PATCH 12/13] kselftest: arm64: fake_sigreturn_bad_size_for_magic0 Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:36   ` Dave Martin
2019-06-21 10:36     ` Dave Martin
2019-07-03 17:50     ` Cristian Marussi
2019-07-03 17:50       ` Cristian Marussi
2019-06-13 11:13 ` [PATCH 13/13] kselftest: arm64: fake_sigreturn_overflow_reserved Cristian Marussi
2019-06-13 11:13   ` Cristian Marussi
2019-06-21 10:36   ` Dave Martin
2019-06-21 10:36     ` Dave Martin
2019-07-03 17:51     ` Cristian Marussi
2019-07-03 17:51       ` Cristian Marussi
2019-06-21 10:34 ` [PATCH 00/13] Add arm64/signal initial kselftest support Dave Martin
2019-06-21 10:34   ` Dave Martin

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