| // WARNING in xfrm_policy_insert |
| // https://syzkaller.appspot.com/bug?id=c037ca41c1bef07c2dc6fa6ee92c24f35244e153 |
| // status:open |
| // autogenerated by syzkaller (http://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| #include <endian.h> |
| #include <linux/futex.h> |
| #include <pthread.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| static void test(); |
| |
| void loop() |
| { |
| while (1) { |
| test(); |
| } |
| } |
| |
| struct thread_t { |
| int created, running, call; |
| pthread_t th; |
| }; |
| |
| static struct thread_t threads[16]; |
| static void execute_call(int call); |
| static int running; |
| static int collide; |
| |
| static void* thr(void* arg) |
| { |
| struct thread_t* th = (struct thread_t*)arg; |
| for (;;) { |
| while (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE)) |
| syscall(SYS_futex, &th->running, FUTEX_WAIT, 0, 0); |
| execute_call(th->call); |
| __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); |
| __atomic_store_n(&th->running, 0, __ATOMIC_RELEASE); |
| syscall(SYS_futex, &th->running, FUTEX_WAKE); |
| } |
| return 0; |
| } |
| |
| static void execute(int num_calls) |
| { |
| int call, thread; |
| running = 0; |
| for (call = 0; call < num_calls; call++) { |
| for (thread = 0; thread < sizeof(threads) / sizeof(threads[0]); thread++) { |
| struct thread_t* th = &threads[thread]; |
| if (!th->created) { |
| th->created = 1; |
| pthread_attr_t attr; |
| pthread_attr_init(&attr); |
| pthread_attr_setstacksize(&attr, 128 << 10); |
| pthread_create(&th->th, &attr, thr, th); |
| } |
| if (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE)) { |
| th->call = call; |
| __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); |
| __atomic_store_n(&th->running, 1, __ATOMIC_RELEASE); |
| syscall(SYS_futex, &th->running, FUTEX_WAKE); |
| if (collide && call % 2) |
| break; |
| struct timespec ts; |
| ts.tv_sec = 0; |
| ts.tv_nsec = 20 * 1000 * 1000; |
| syscall(SYS_futex, &th->running, FUTEX_WAIT, 1, &ts); |
| if (running) |
| usleep((call == num_calls - 1) ? 10000 : 1000); |
| break; |
| } |
| } |
| } |
| } |
| |
| long r[3]; |
| uint64_t procid; |
| void execute_call(int call) |
| { |
| switch (call) { |
| case 0: |
| syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0); |
| break; |
| case 1: |
| if (syscall(__NR_socketpair, 0xa, 0x80a, 0xf, 0x20000000) != -1) |
| r[0] = *(uint32_t*)0x20000000; |
| break; |
| case 2: |
| *(uint32_t*)0x20705000 = 0x10; |
| syscall(__NR_accept, r[0], 0x20000000, 0x20705000); |
| break; |
| case 3: |
| r[1] = syscall(__NR_socket, 0x10, 3, 6); |
| break; |
| case 4: |
| *(uint64_t*)0x2014dfc8 = 0x206a2ff4; |
| *(uint32_t*)0x2014dfd0 = 0xc; |
| *(uint64_t*)0x2014dfd8 = 0x2054aff0; |
| *(uint64_t*)0x2014dfe0 = 1; |
| *(uint64_t*)0x2014dfe8 = 0; |
| *(uint64_t*)0x2014dff0 = 0; |
| *(uint32_t*)0x2014dff8 = 0; |
| *(uint16_t*)0x206a2ff4 = 0x10; |
| *(uint16_t*)0x206a2ff6 = 0; |
| *(uint32_t*)0x206a2ff8 = 0; |
| *(uint32_t*)0x206a2ffc = 0; |
| *(uint64_t*)0x2054aff0 = 0x207c7000; |
| *(uint64_t*)0x2054aff8 = 0xb8; |
| *(uint32_t*)0x207c7000 = 0xb8; |
| *(uint16_t*)0x207c7004 = 0x19; |
| *(uint16_t*)0x207c7006 = 0x401; |
| *(uint32_t*)0x207c7008 = 0; |
| *(uint32_t*)0x207c700c = 0; |
| *(uint32_t*)0x207c7010 = htobe32(0xe0000001); |
| *(uint8_t*)0x207c7020 = 0xac; |
| *(uint8_t*)0x207c7021 = 0x14; |
| *(uint8_t*)0x207c7022 = 0; |
| *(uint8_t*)0x207c7023 = 0; |
| *(uint16_t*)0x207c7030 = 0; |
| *(uint16_t*)0x207c7032 = htobe16(0); |
| *(uint16_t*)0x207c7034 = 0; |
| *(uint16_t*)0x207c7036 = htobe16(0); |
| *(uint16_t*)0x207c7038 = 2; |
| *(uint8_t*)0x207c703a = 0; |
| *(uint8_t*)0x207c703b = 0; |
| *(uint8_t*)0x207c703c = 0; |
| *(uint32_t*)0x207c7040 = 0; |
| *(uint32_t*)0x207c7044 = 0; |
| *(uint64_t*)0x207c7048 = 0; |
| *(uint64_t*)0x207c7050 = 0; |
| *(uint64_t*)0x207c7058 = 0; |
| *(uint64_t*)0x207c7060 = 0; |
| *(uint64_t*)0x207c7068 = 0; |
| *(uint64_t*)0x207c7070 = 0; |
| *(uint64_t*)0x207c7078 = 0; |
| *(uint64_t*)0x207c7080 = 0; |
| *(uint64_t*)0x207c7088 = 0; |
| *(uint64_t*)0x207c7090 = 0; |
| *(uint64_t*)0x207c7098 = 0; |
| *(uint64_t*)0x207c70a0 = 0; |
| *(uint32_t*)0x207c70a8 = 0x7f; |
| *(uint32_t*)0x207c70ac = 0; |
| *(uint8_t*)0x207c70b0 = 0; |
| *(uint8_t*)0x207c70b1 = 0; |
| *(uint8_t*)0x207c70b2 = 0; |
| *(uint8_t*)0x207c70b3 = 0; |
| syscall(__NR_sendmsg, r[1], 0x2014dfc8, 0); |
| break; |
| case 5: |
| *(uint64_t*)0x2014dfc8 = 0x206a2ff4; |
| *(uint32_t*)0x2014dfd0 = 0xc; |
| *(uint64_t*)0x2014dfd8 = 0x2054aff0; |
| *(uint64_t*)0x2014dfe0 = 1; |
| *(uint64_t*)0x2014dfe8 = 0; |
| *(uint64_t*)0x2014dff0 = 0; |
| *(uint32_t*)0x2014dff8 = 0; |
| *(uint16_t*)0x206a2ff4 = 0x10; |
| *(uint16_t*)0x206a2ff6 = 0; |
| *(uint32_t*)0x206a2ff8 = 0; |
| *(uint32_t*)0x206a2ffc = 0; |
| *(uint64_t*)0x2054aff0 = 0x207c7000; |
| *(uint64_t*)0x2054aff8 = 0xb8; |
| *(uint32_t*)0x207c7000 = 0xb8; |
| *(uint16_t*)0x207c7004 = 0x19; |
| *(uint16_t*)0x207c7006 = 0x401; |
| *(uint32_t*)0x207c7008 = 0; |
| *(uint32_t*)0x207c700c = 0; |
| *(uint32_t*)0x207c7010 = htobe32(0xe0000001); |
| *(uint8_t*)0x207c7020 = 0xac; |
| *(uint8_t*)0x207c7021 = 0x14; |
| *(uint8_t*)0x207c7022 = 0; |
| *(uint8_t*)0x207c7023 = 0; |
| *(uint16_t*)0x207c7030 = 0; |
| *(uint16_t*)0x207c7032 = htobe16(0); |
| *(uint16_t*)0x207c7034 = 0; |
| *(uint16_t*)0x207c7036 = htobe16(0); |
| *(uint16_t*)0x207c7038 = 2; |
| *(uint8_t*)0x207c703a = 0; |
| *(uint8_t*)0x207c703b = 0; |
| *(uint8_t*)0x207c703c = 0; |
| *(uint32_t*)0x207c7040 = 0; |
| *(uint32_t*)0x207c7044 = 0; |
| *(uint64_t*)0x207c7048 = 0; |
| *(uint64_t*)0x207c7050 = 0; |
| *(uint64_t*)0x207c7058 = 0; |
| *(uint64_t*)0x207c7060 = 0; |
| *(uint64_t*)0x207c7068 = 0; |
| *(uint64_t*)0x207c7070 = 0; |
| *(uint64_t*)0x207c7078 = 0; |
| *(uint64_t*)0x207c7080 = 0; |
| *(uint64_t*)0x207c7088 = 0; |
| *(uint64_t*)0x207c7090 = 0; |
| *(uint64_t*)0x207c7098 = 0; |
| *(uint64_t*)0x207c70a0 = 0; |
| *(uint32_t*)0x207c70a8 = 0; |
| *(uint32_t*)0x207c70ac = 0; |
| *(uint8_t*)0x207c70b0 = 0; |
| *(uint8_t*)0x207c70b1 = 0; |
| *(uint8_t*)0x207c70b2 = 0; |
| *(uint8_t*)0x207c70b3 = 0; |
| syscall(__NR_sendmsg, -1, 0x2014dfc8, 0); |
| break; |
| case 6: |
| r[2] = syscall(__NR_socket, 0x10, 3, 6); |
| break; |
| case 7: |
| *(uint64_t*)0x2014dfc8 = 0x206a2ff4; |
| *(uint32_t*)0x2014dfd0 = 0xc; |
| *(uint64_t*)0x2014dfd8 = 0x2054aff0; |
| *(uint64_t*)0x2014dfe0 = 1; |
| *(uint64_t*)0x2014dfe8 = 0; |
| *(uint64_t*)0x2014dff0 = 0; |
| *(uint32_t*)0x2014dff8 = 0; |
| *(uint16_t*)0x206a2ff4 = 0x10; |
| *(uint16_t*)0x206a2ff6 = 0; |
| *(uint32_t*)0x206a2ff8 = 0; |
| *(uint32_t*)0x206a2ffc = 0; |
| *(uint64_t*)0x2054aff0 = 0x207c7000; |
| *(uint64_t*)0x2054aff8 = 0xc4; |
| *(uint32_t*)0x207c7000 = 0xc4; |
| *(uint16_t*)0x207c7004 = 0x19; |
| *(uint16_t*)0x207c7006 = 0x401; |
| *(uint32_t*)0x207c7008 = 0; |
| *(uint32_t*)0x207c700c = 0; |
| *(uint32_t*)0x207c7010 = htobe32(0xe0000001); |
| *(uint8_t*)0x207c7020 = 0xac; |
| *(uint8_t*)0x207c7021 = 0x14; |
| *(uint8_t*)0x207c7022 = 0; |
| *(uint8_t*)0x207c7023 = 0; |
| *(uint16_t*)0x207c7030 = 0; |
| *(uint16_t*)0x207c7032 = htobe16(0); |
| *(uint16_t*)0x207c7034 = 0; |
| *(uint16_t*)0x207c7036 = htobe16(0); |
| *(uint16_t*)0x207c7038 = 2; |
| *(uint8_t*)0x207c703a = 0; |
| *(uint8_t*)0x207c703b = 0; |
| *(uint8_t*)0x207c703c = 0; |
| *(uint32_t*)0x207c7040 = 0; |
| *(uint32_t*)0x207c7044 = 0; |
| *(uint64_t*)0x207c7048 = 0; |
| *(uint64_t*)0x207c7050 = 0; |
| *(uint64_t*)0x207c7058 = 0; |
| *(uint64_t*)0x207c7060 = 0; |
| *(uint64_t*)0x207c7068 = 0; |
| *(uint64_t*)0x207c7070 = 0; |
| *(uint64_t*)0x207c7078 = 0; |
| *(uint64_t*)0x207c7080 = 0; |
| *(uint64_t*)0x207c7088 = 0; |
| *(uint64_t*)0x207c7090 = 0; |
| *(uint64_t*)0x207c7098 = 0; |
| *(uint64_t*)0x207c70a0 = 0; |
| *(uint32_t*)0x207c70a8 = 0; |
| *(uint32_t*)0x207c70ac = 0; |
| *(uint8_t*)0x207c70b0 = 0; |
| *(uint8_t*)0x207c70b1 = 0; |
| *(uint8_t*)0x207c70b2 = 0; |
| *(uint8_t*)0x207c70b3 = 0; |
| *(uint16_t*)0x207c70b8 = 0xc; |
| *(uint16_t*)0x207c70ba = 0x15; |
| *(uint32_t*)0x207c70bc = 0; |
| *(uint32_t*)0x207c70c0 = 3; |
| syscall(__NR_sendmsg, r[2], 0x2014dfc8, 0); |
| break; |
| } |
| } |
| |
| void test() |
| { |
| memset(r, -1, sizeof(r)); |
| execute(8); |
| collide = 1; |
| execute(8); |
| } |
| |
| int main() |
| { |
| for (procid = 0; procid < 8; procid++) { |
| if (fork() == 0) { |
| for (;;) { |
| loop(); |
| } |
| } |
| } |
| sleep(1000000); |
| return 0; |
| } |
