// https://syzkaller.appspot.com/bug?id=02a49e798ac084d20d84b358c92735fde98cc831 // autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include static void test(); void loop() { while (1) { test(); } } long r[13]; void* thr(void* arg) { switch ((long)arg) { case 0: r[0] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul, 0xfffffffffffffffful, 0x0ul); break; case 1: r[1] = syscall(__NR_socket, 0x2ul, 0x1ul, 0x0ul); break; case 2: *(uint32_t*)0x20f11000 = (uint32_t)0xffffffffffffffc0; r[3] = syscall(__NR_setsockopt, r[1], 0x1ul, 0xful, 0x20f11000ul, 0x4ul); break; case 3: *(uint16_t*)0x20e9bff0 = (uint16_t)0x1; *(uint64_t*)0x20e9bff8 = (uint64_t)0x20f07000; *(uint16_t*)0x20f07000 = (uint16_t)0x6; *(uint8_t*)0x20f07002 = (uint8_t)0x0; *(uint8_t*)0x20f07003 = (uint8_t)0x0; *(uint32_t*)0x20f07004 = (uint32_t)0x0; r[10] = syscall(__NR_setsockopt, r[1], 0x1ul, 0x33ul, 0x20e9bff0ul, 0x10ul); break; case 4: *(uint32_t*)0x200d1ffc = (uint32_t)0x5; r[12] = syscall(__NR_setsockopt, 0xfffffffffffffffful, 0x10eul, 0x4ul, 0x200d1ffcul, 0x4ul); break; } return 0; } void test() { long i; pthread_t th[10]; memset(r, -1, sizeof(r)); srand(getpid()); for (i = 0; i < 5; i++) { pthread_create(&th[i], 0, thr, (void*)i); usleep(rand() % 10000); } for (i = 0; i < 5; i++) { pthread_create(&th[5 + i], 0, thr, (void*)i); if (rand() % 2) usleep(rand() % 10000); } usleep(rand() % 100000); } int main() { loop(); return 0; }