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From 8c1a84778bb05a3becc493698b215681bf7249b3 Mon Sep 17 00:00:00 2001
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From: "Dmitry V. Levin" <ldv@altlinux.org>
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Date: Sat, 19 Sep 2020 08:00:00 +0000
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Subject: [PATCH 160/162] tests: disable shmctl IPC_STAT test with a bogus
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address on glibc >= 2.32
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Starting with commit glibc-2.32~80, on every 32-bit architecture where
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32-bit time_t support is enabled, glibc tries to retrieve the data
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provided in the third argument of shmctl call. This results to
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segfaults inside glibc when shmctl is called with a bogus address.
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* tests/ipc_shm.c [GLIBC_PREREQ_GE(2, 32) && __TIMESIZE != 64]
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(TEST_SHMCTL_BOGUS_ADDR): Define to 0.
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(main): Conditionalize on TEST_SHMCTL_BOGUS_ADDR the shmctl IPC_STAT
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invocation with a bogus address.
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---
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tests/ipc_shm.c | 19 +++++++++++++++++++
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1 file changed, 19 insertions(+)
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diff --git a/tests/ipc_shm.c b/tests/ipc_shm.c
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index 5cd414e..695fd94 100644
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--- a/tests/ipc_shm.c
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+++ b/tests/ipc_shm.c
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@@ -73,6 +73,21 @@
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# define str_bogus_cmd "0xdefaced2 /\\* SHM_\\?\\?\\? \\*/"
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#endif
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+#undef TEST_SHMCTL_BOGUS_ADDR
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+
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+/*
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+ * Starting with commit glibc-2.32~80, on every 32-bit architecture
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+ * where 32-bit time_t support is enabled, glibc tries to retrieve
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+ * the data provided in the third argument of shmctl call.
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+ */
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+#if GLIBC_PREREQ_GE(2, 32) && defined __TIMESIZE && __TIMESIZE != 64
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+# define TEST_SHMCTL_BOGUS_ADDR 0
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+#endif
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+
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+#ifndef TEST_SHMCTL_BOGUS_ADDR
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+# define TEST_SHMCTL_BOGUS_ADDR 1
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+#endif
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+
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static int id = -1;
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static void
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@@ -92,7 +107,9 @@ main(void)
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static const key_t bogus_key = (key_t) 0xeca86420fdb97531ULL;
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static const int bogus_id = 0xdefaced1;
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static const int bogus_cmd = 0xdefaced2;
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+#if TEST_SHMCTL_BOGUS_ADDR
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static void * const bogus_addr = (void *) -1L;
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+#endif
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static const size_t bogus_size =
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/*
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* musl sets size to SIZE_MAX if size argument is greater than
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@@ -160,10 +177,12 @@ main(void)
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printf("shmctl\\(%d, (%s\\|)?%s, NULL\\) = %s\n",
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bogus_id, str_ipc_64, str_bogus_cmd, sprintrc_grep(rc));
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+#if TEST_SHMCTL_BOGUS_ADDR
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rc = shmctl(bogus_id, IPC_STAT, bogus_addr);
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printf("shmctl\\(%d, (%s\\|)?%s, %p\\) = %s\n",
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bogus_id, str_ipc_64, str_ipc_stat, bogus_addr,
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sprintrc_grep(rc));
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+#endif
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if (shmctl(id, IPC_STAT, &ds))
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perror_msg_and_skip("shmctl IPC_STAT");
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diff --git a/tests-m32/ipc_shm.c b/tests-m32/ipc_shm.c
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index 5cd414e..695fd94 100644
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--- a/tests-m32/ipc_shm.c
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+++ b/tests-m32/ipc_shm.c
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@@ -73,6 +73,21 @@
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# define str_bogus_cmd "0xdefaced2 /\\* SHM_\\?\\?\\? \\*/"
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#endif
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+#undef TEST_SHMCTL_BOGUS_ADDR
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+
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+/*
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+ * Starting with commit glibc-2.32~80, on every 32-bit architecture
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+ * where 32-bit time_t support is enabled, glibc tries to retrieve
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+ * the data provided in the third argument of shmctl call.
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+ */
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+#if GLIBC_PREREQ_GE(2, 32) && defined __TIMESIZE && __TIMESIZE != 64
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+# define TEST_SHMCTL_BOGUS_ADDR 0
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+#endif
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+
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+#ifndef TEST_SHMCTL_BOGUS_ADDR
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+# define TEST_SHMCTL_BOGUS_ADDR 1
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+#endif
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+
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static int id = -1;
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static void
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@@ -92,7 +107,9 @@ main(void)
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static const key_t bogus_key = (key_t) 0xeca86420fdb97531ULL;
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static const int bogus_id = 0xdefaced1;
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static const int bogus_cmd = 0xdefaced2;
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+#if TEST_SHMCTL_BOGUS_ADDR
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static void * const bogus_addr = (void *) -1L;
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+#endif
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static const size_t bogus_size =
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/*
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* musl sets size to SIZE_MAX if size argument is greater than
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@@ -160,10 +177,12 @@ main(void)
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printf("shmctl\\(%d, (%s\\|)?%s, NULL\\) = %s\n",
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bogus_id, str_ipc_64, str_bogus_cmd, sprintrc_grep(rc));
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+#if TEST_SHMCTL_BOGUS_ADDR
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rc = shmctl(bogus_id, IPC_STAT, bogus_addr);
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printf("shmctl\\(%d, (%s\\|)?%s, %p\\) = %s\n",
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bogus_id, str_ipc_64, str_ipc_stat, bogus_addr,
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sprintrc_grep(rc));
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+#endif
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if (shmctl(id, IPC_STAT, &ds))
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perror_msg_and_skip("shmctl IPC_STAT");
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diff --git a/tests-mx32/ipc_shm.c b/tests-mx32/ipc_shm.c
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index 5cd414e..695fd94 100644
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--- a/tests-mx32/ipc_shm.c
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+++ b/tests-mx32/ipc_shm.c
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@@ -73,6 +73,21 @@
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# define str_bogus_cmd "0xdefaced2 /\\* SHM_\\?\\?\\? \\*/"
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#endif
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+#undef TEST_SHMCTL_BOGUS_ADDR
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+
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+/*
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+ * Starting with commit glibc-2.32~80, on every 32-bit architecture
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+ * where 32-bit time_t support is enabled, glibc tries to retrieve
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+ * the data provided in the third argument of shmctl call.
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+ */
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+#if GLIBC_PREREQ_GE(2, 32) && defined __TIMESIZE && __TIMESIZE != 64
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+# define TEST_SHMCTL_BOGUS_ADDR 0
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+#endif
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+
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+#ifndef TEST_SHMCTL_BOGUS_ADDR
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+# define TEST_SHMCTL_BOGUS_ADDR 1
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+#endif
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+
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static int id = -1;
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static void
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@@ -92,7 +107,9 @@ main(void)
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static const key_t bogus_key = (key_t) 0xeca86420fdb97531ULL;
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static const int bogus_id = 0xdefaced1;
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static const int bogus_cmd = 0xdefaced2;
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+#if TEST_SHMCTL_BOGUS_ADDR
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static void * const bogus_addr = (void *) -1L;
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+#endif
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static const size_t bogus_size =
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/*
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* musl sets size to SIZE_MAX if size argument is greater than
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@@ -160,10 +177,12 @@ main(void)
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printf("shmctl\\(%d, (%s\\|)?%s, NULL\\) = %s\n",
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bogus_id, str_ipc_64, str_bogus_cmd, sprintrc_grep(rc));
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+#if TEST_SHMCTL_BOGUS_ADDR
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rc = shmctl(bogus_id, IPC_STAT, bogus_addr);
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printf("shmctl\\(%d, (%s\\|)?%s, %p\\) = %s\n",
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bogus_id, str_ipc_64, str_ipc_stat, bogus_addr,
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sprintrc_grep(rc));
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+#endif
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if (shmctl(id, IPC_STAT, &ds))
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perror_msg_and_skip("shmctl IPC_STAT");
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--
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2.1.4
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