// https://syzkaller.appspot.com/bug?id=06aa5c3514c3d8739b7566521420673284f89f3b
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE 

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <pthread.h>
#include <pwd.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/event.h>
#include <sys/ioctl.h>
#include <sys/ktrace.h>
#include <sys/mman.h>
#include <sys/msg.h>
#include <sys/resource.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/sysctl.h>
#include <sys/syslog.h>
#include <time.h>
#include <unistd.h>

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
	if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
		exit(sig);
	}
	uintptr_t addr = (uintptr_t)info->si_addr;
	const uintptr_t prog_start = 1 << 20;
	const uintptr_t prog_end = 100 << 20;
	int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
	int valid = addr < prog_start || addr > prog_end;
	if (skip && valid) {
		_longjmp(segv_env, 1);
	}
	exit(sig);
}

static void install_segv_handler(void)
{
	struct sigaction sa;
	memset(&sa, 0, sizeof(sa));
	sa.sa_sigaction = segv_handler;
	sa.sa_flags = SA_NODEFER | SA_SIGINFO;
	sigaction(SIGSEGV, &sa, NULL);
	sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...) ({ int ok = 1; __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); if (_setjmp(segv_env) == 0) { __VA_ARGS__; } else ok = 0; __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); ok; })

static void sleep_ms(uint64_t ms)
{
	usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
	struct timespec ts;
	if (clock_gettime(CLOCK_MONOTONIC, &ts))
	exit(1);
	return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void thread_start(void* (*fn)(void*), void* arg)
{
	pthread_t th;
	pthread_attr_t attr;
	pthread_attr_init(&attr);
	pthread_attr_setstacksize(&attr, 128 << 10);
	int i = 0;
	for (; i < 100; i++) {
		if (pthread_create(&th, &attr, fn, arg) == 0) {
			pthread_attr_destroy(&attr);
			return;
		}
		if (errno == EAGAIN) {
			usleep(50);
			continue;
		}
		break;
	}
	exit(1);
}

typedef struct {
	pthread_mutex_t mu;
	pthread_cond_t cv;
	int state;
} event_t;

static void event_init(event_t* ev)
{
	if (pthread_mutex_init(&ev->mu, 0))
	exit(1);
	if (pthread_cond_init(&ev->cv, 0))
	exit(1);
	ev->state = 0;
}

static void event_reset(event_t* ev)
{
	ev->state = 0;
}

static void event_set(event_t* ev)
{
	pthread_mutex_lock(&ev->mu);
	if (ev->state)
	exit(1);
	ev->state = 1;
	pthread_mutex_unlock(&ev->mu);
	pthread_cond_broadcast(&ev->cv);
}

static void event_wait(event_t* ev)
{
	pthread_mutex_lock(&ev->mu);
	while (!ev->state)
		pthread_cond_wait(&ev->cv, &ev->mu);
	pthread_mutex_unlock(&ev->mu);
}

static int event_isset(event_t* ev)
{
	pthread_mutex_lock(&ev->mu);
	int res = ev->state;
	pthread_mutex_unlock(&ev->mu);
	return res;
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
	uint64_t start = current_time_ms();
	uint64_t now = start;
	pthread_mutex_lock(&ev->mu);
	for (;;) {
		if (ev->state)
			break;
		uint64_t remain = timeout - (now - start);
		struct timespec ts;
		ts.tv_sec = remain / 1000;
		ts.tv_nsec = (remain % 1000) * 1000 * 1000;
		pthread_cond_timedwait(&ev->cv, &ev->mu, &ts);
		now = current_time_ms();
		if (now - start > timeout)
			break;
	}
	int res = ev->state;
	pthread_mutex_unlock(&ev->mu);
	return res;
}

#define CAST 

static void sandbox_common()
{
	struct rlimit rlim;
	rlim.rlim_cur = rlim.rlim_max = 8 << 20;
	setrlimit(RLIMIT_MEMLOCK, &rlim);
	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
	setrlimit(RLIMIT_FSIZE, &rlim);
	rlim.rlim_cur = rlim.rlim_max = 1 << 20;
	setrlimit(RLIMIT_STACK, &rlim);
	rlim.rlim_cur = rlim.rlim_max = 0;
	setrlimit(RLIMIT_CORE, &rlim);
	rlim.rlim_cur = rlim.rlim_max = 256;
	setrlimit(RLIMIT_NOFILE, &rlim);
}

static void loop();

static int do_sandbox_none(void)
{
	sandbox_common();
	loop();
	return 0;
}

struct thread_t {
	int created, call;
	event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
	struct thread_t* th = (struct thread_t*)arg;
	for (;;) {
		event_wait(&th->ready);
		event_reset(&th->ready);
		execute_call(th->call);
		__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
		event_set(&th->done);
	}
	return 0;
}

static void loop(void)
{
	int i, call, thread;
	for (call = 0; call < 6; call++) {
		for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0])); thread++) {
			struct thread_t* th = &threads[thread];
			if (!th->created) {
				th->created = 1;
				event_init(&th->ready);
				event_init(&th->done);
				event_set(&th->done);
				thread_start(thr, th);
			}
			if (!event_isset(&th->done))
				continue;
			event_reset(&th->done);
			th->call = call;
			__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
			event_set(&th->ready);
			if (call == 1 || call == 4)
				break;
			event_timedwait(&th->done, 50);
			break;
		}
	}
	for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
		sleep_ms(1);
}

uint64_t r[2] = {0xffffffffffffffff, 0x0};

void execute_call(int call)
{
		intptr_t res = 0;
	switch (call) {
	case 0:
		NONFAILING(memcpy((void*)0x20000080, "./file0\000", 8));
		res = -1;
		NONFAILING(res = ((intptr_t(*)(intptr_t,intptr_t,intptr_t))CAST(open))(/*file=*/0x20000080, /*flags=O_RSYNC|O_NOFOLLOW|O_TRUNC|O_CREAT|0xe*/0x78e, /*mode=*/0));
		if (res != -1)
				r[0] = res;
		break;
	case 1:
		NONFAILING(*(uint64_t*)0x20000500 = 0);
		NONFAILING(*(uint64_t*)0x20000508 = 0);
		NONFAILING(*(uint64_t*)0x20000510 = 0x20000580);
		NONFAILING(memcpy((void*)0x20000580, "\x07\x90\xf7\x88\xff\x66\x4b\x51\xb0\x4b\xc2\x3b\xcb\x35\xcc\x6c\x1c\x38\xc4\xe3\x93\x05\xa6\x58\xa9\x19\x8f\x4f\xf7\x9f\x96\xfa\x45\x8d\xcf\xe7\xd9\x2c\x7e\x3c\xa5\xbe\x12\x83\x30\xcb\x26\x49\x3e\xd7\xb8\x86\x0b\xb4\x0d\x9b\xba\x8d\x13\x54\x84\x49\x79\x80\x40\x5e\x50\x25\x02\xb9\x33\x84\x0c\xaa\xc9\x31\xa3\x50\xbc\x38\x35\x88\xc1\x20\xe5\x53\x73\x3d\xca\x6e\xec\x22\x3f\xd2\x8b\x6d\xa7\xca\x71\xf3\xf8\x33\x67\xf4\x50\x5c\x0d\x6f\xcf\xfd\x40\x6a\x72\xb2\x48\x6a\xe7\xbe\x86\xa8\xb6\x2d\xec\x6c\x4b\xd2\x68\x5b\xd9\x68\x29\x2d\x7f\xf7\x99\x07\xb1\x9b\x1c\xed\x01\x39\xff\x29\x42\xa5\x69\x41\xc7\x5a\x90\xfd\x72\x13\x3e\x1e\x8c\xb1\x4e\x47\x7a\x28\xf3\x88\x1f\x99\x4b\xab\xef\x8f\x8a\xb4\x15\x73\xdf\x86\x2d\x4c\xfc\x26\x21\xba\x12\x9c\x10\xc8\xbe\x61\xfc\x4c\xb3\xb4\x35\x98\x54\x0f\x62\x79\xbe", 199));
		NONFAILING(*(uint64_t*)0x20000518 = 0xc7);
		NONFAILING(*(uint64_t*)0x20000520 = 0);
		NONFAILING(*(uint64_t*)0x20000528 = 0);
		NONFAILING(*(uint64_t*)0x20000530 = 0);
		NONFAILING(*(uint64_t*)0x20000538 = 0);
		NONFAILING(((intptr_t(*)(intptr_t,intptr_t,intptr_t))CAST(writev))(/*fd=*/r[0], /*vec=*/0x20000500, /*vlen=*/4));
		break;
	case 2:
		NONFAILING(((intptr_t(*)(intptr_t,intptr_t,intptr_t,intptr_t,intptr_t,intptr_t))CAST(mmap))(/*addr=*/0x20000000, /*len=*/0x13000, /*prot=PROT_READ|PROT_EXEC*/5, /*flags=MAP_FIXED*/0x10, /*fd=*/r[0], /*offset=*/0));
		break;
	case 3:
		res = -1;
		NONFAILING(res = ((intptr_t(*)(intptr_t,intptr_t,intptr_t))CAST(semget))(/*key=*/0, /*nsems=*/0x4000000009, /*flags=*/0x82));
		if (res != -1)
				r[1] = res;
		break;
	case 4:
		NONFAILING(*(uint16_t*)0x200002c0 = 3);
		NONFAILING(*(uint16_t*)0x200002c2 = 0xbf4e);
		NONFAILING(*(uint16_t*)0x200002c4 = 0x1800);
		NONFAILING(*(uint16_t*)0x200002c6 = 2);
		NONFAILING(*(uint16_t*)0x200002c8 = 0x1f);
		NONFAILING(*(uint16_t*)0x200002ca = 0);
		NONFAILING(*(uint16_t*)0x200002cc = 1);
		NONFAILING(*(uint16_t*)0x200002ce = 4);
		NONFAILING(*(uint16_t*)0x200002d0 = 0x1800);
		NONFAILING(*(uint16_t*)0x200002d2 = 4);
		NONFAILING(*(uint16_t*)0x200002d4 = 0xe5f1);
		NONFAILING(*(uint16_t*)0x200002d6 = 0);
		NONFAILING(*(uint16_t*)0x200002d8 = 0);
		NONFAILING(*(uint16_t*)0x200002da = 0xffd);
		NONFAILING(*(uint16_t*)0x200002dc = 0x1000);
		NONFAILING(*(uint16_t*)0x200002de = 4);
		NONFAILING(*(uint16_t*)0x200002e0 = 0x53);
		NONFAILING(*(uint16_t*)0x200002e2 = 0x1000);
		NONFAILING(*(uint16_t*)0x200002e4 = 2);
		NONFAILING(*(uint16_t*)0x200002e6 = 2);
		NONFAILING(*(uint16_t*)0x200002e8 = 0x1000);
		NONFAILING(*(uint16_t*)0x200002ea = 2);
		NONFAILING(*(uint16_t*)0x200002ec = 0);
		NONFAILING(*(uint16_t*)0x200002ee = 0x800);
		NONFAILING(*(uint16_t*)0x200002f0 = 2);
		NONFAILING(*(uint16_t*)0x200002f2 = 0xfffd);
		NONFAILING(*(uint16_t*)0x200002f4 = 0);
		NONFAILING(*(uint16_t*)0x200002f6 = 0);
		NONFAILING(*(uint16_t*)0x200002f8 = 9);
		NONFAILING(*(uint16_t*)0x200002fa = 0x1800);
		NONFAILING(((intptr_t(*)(intptr_t,intptr_t,intptr_t))CAST(semop))(/*semid=*/r[1], /*ops=*/0x200002c0, /*nops=*/0xa));
		break;
	case 5:
		NONFAILING(((intptr_t(*)(intptr_t,intptr_t,intptr_t,intptr_t))CAST(semctl))(/*semid=*/r[1], /*semnum=*/0, /*cmd=*/0, 0));
		break;
	}

}
int main(void)
{
		NONFAILING(((intptr_t(*)(intptr_t,intptr_t,intptr_t,intptr_t,intptr_t,intptr_t))CAST(mmap))(/*addr=*/0x20000000, /*len=*/0x1000000, /*prot=PROT_WRITE|PROT_READ*/3, /*flags=MAP_ANONYMOUS|MAP_FIXED|MAP_PRIVATE*/0x1012, /*fd=*/-1, /*offset=*/0));
	install_segv_handler();
			do_sandbox_none();
	return 0;
}