// https://syzkaller.appspot.com/bug?id=fe947937a34a780ffd523c88aae31173620493d6
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#ifndef __NR_io_uring_setup
#define __NR_io_uring_setup 425
#endif

#define SIZEOF_IO_URING_SQE 64
#define SIZEOF_IO_URING_CQE 16
#define SQ_HEAD_OFFSET 0
#define SQ_TAIL_OFFSET 64
#define SQ_RING_MASK_OFFSET 256
#define SQ_RING_ENTRIES_OFFSET 264
#define SQ_FLAGS_OFFSET 276
#define SQ_DROPPED_OFFSET 272
#define CQ_HEAD_OFFSET 128
#define CQ_TAIL_OFFSET 192
#define CQ_RING_MASK_OFFSET 260
#define CQ_RING_ENTRIES_OFFSET 268
#define CQ_RING_OVERFLOW_OFFSET 284
#define CQ_FLAGS_OFFSET 280
#define CQ_CQES_OFFSET 320

struct io_sqring_offsets {
  uint32_t head;
  uint32_t tail;
  uint32_t ring_mask;
  uint32_t ring_entries;
  uint32_t flags;
  uint32_t dropped;
  uint32_t array;
  uint32_t resv1;
  uint64_t resv2;
};

struct io_cqring_offsets {
  uint32_t head;
  uint32_t tail;
  uint32_t ring_mask;
  uint32_t ring_entries;
  uint32_t overflow;
  uint32_t cqes;
  uint64_t resv[2];
};

struct io_uring_params {
  uint32_t sq_entries;
  uint32_t cq_entries;
  uint32_t flags;
  uint32_t sq_thread_cpu;
  uint32_t sq_thread_idle;
  uint32_t features;
  uint32_t resv[4];
  struct io_sqring_offsets sq_off;
  struct io_cqring_offsets cq_off;
};

#define IORING_OFF_SQ_RING 0
#define IORING_OFF_SQES 0x10000000ULL
#define IORING_SETUP_SQE128 (1U << 10)
#define IORING_SETUP_CQE32 (1U << 11)

static long syz_io_uring_setup(volatile long a0, volatile long a1,
                               volatile long a2, volatile long a3)
{
  uint32_t entries = (uint32_t)a0;
  struct io_uring_params* setup_params = (struct io_uring_params*)a1;
  void** ring_ptr_out = (void**)a2;
  void** sqes_ptr_out = (void**)a3;
  setup_params->flags &= ~(IORING_SETUP_CQE32 | IORING_SETUP_SQE128);
  uint32_t fd_io_uring = syscall(__NR_io_uring_setup, entries, setup_params);
  uint32_t sq_ring_sz =
      setup_params->sq_off.array + setup_params->sq_entries * sizeof(uint32_t);
  uint32_t cq_ring_sz = setup_params->cq_off.cqes +
                        setup_params->cq_entries * SIZEOF_IO_URING_CQE;
  uint32_t ring_sz = sq_ring_sz > cq_ring_sz ? sq_ring_sz : cq_ring_sz;
  *ring_ptr_out =
      mmap(0, ring_sz, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE,
           fd_io_uring, IORING_OFF_SQ_RING);
  uint32_t sqes_sz = setup_params->sq_entries * SIZEOF_IO_URING_SQE;
  *sqes_ptr_out = mmap(0, sqes_sz, PROT_READ | PROT_WRITE,
                       MAP_SHARED | MAP_POPULATE, fd_io_uring, IORING_OFF_SQES);
  uint32_t* array =
      (uint32_t*)((uintptr_t)*ring_ptr_out + setup_params->sq_off.array);
  for (uint32_t index = 0; index < entries; index++)
    array[index] = index;
  return fd_io_uring;
}

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  *(uint8_t*)0x200003c0 = 0xfc;
  *(uint8_t*)0x200003c1 = 2;
  memset((void*)0x200003c2, 0, 13);
  *(uint8_t*)0x200003cf = 1;
  *(uint32_t*)0x200003d0 = htobe32(0xe0000001);
  *(uint16_t*)0x200003e0 = htobe16(0x4e20);
  *(uint16_t*)0x200003e2 = htobe16(0xa);
  *(uint16_t*)0x200003e4 = htobe16(0x4e21);
  *(uint16_t*)0x200003e6 = htobe16(0xff4e);
  *(uint16_t*)0x200003e8 = 0xa;
  *(uint8_t*)0x200003ea = 0;
  *(uint8_t*)0x200003eb = 0;
  *(uint8_t*)0x200003ec = 0x2e;
  *(uint32_t*)0x200003f0 = 0;
  *(uint32_t*)0x200003f4 = 0;
  *(uint64_t*)0x200003f8 = 0x83;
  *(uint64_t*)0x20000400 = 0xfffffffffffffffa;
  *(uint64_t*)0x20000408 = 6;
  *(uint64_t*)0x20000410 = 0;
  *(uint64_t*)0x20000418 = 0xc32;
  *(uint64_t*)0x20000420 = 0xfffffffffffffffc;
  *(uint64_t*)0x20000428 = 1;
  *(uint64_t*)0x20000430 = 0x80;
  *(uint64_t*)0x20000438 = 0x401;
  *(uint64_t*)0x20000440 = 0x7fffffffffffffff;
  *(uint64_t*)0x20000448 = 2;
  *(uint64_t*)0x20000450 = 0x100;
  *(uint32_t*)0x20000458 = 9;
  *(uint32_t*)0x2000045c = 0;
  *(uint8_t*)0x20000460 = 2;
  *(uint8_t*)0x20000461 = 0;
  *(uint8_t*)0x20000462 = 2;
  *(uint8_t*)0x20000463 = 1;
  memset((void*)0x20000468, 0, 10);
  memset((void*)0x20000472, 255, 2);
  *(uint32_t*)0x20000474 = htobe32(-1);
  *(uint32_t*)0x20000478 = htobe32(0x4d6);
  *(uint8_t*)0x2000047c = 0x6c;
  *(uint16_t*)0x20000480 = 2;
  *(uint32_t*)0x20000484 = htobe32(0);
  *(uint32_t*)0x20000494 = 0;
  *(uint8_t*)0x20000498 = 3;
  *(uint8_t*)0x20000499 = 1;
  *(uint8_t*)0x2000049a = 3;
  *(uint32_t*)0x2000049c = 0x4f91b143;
  *(uint32_t*)0x200004a0 = 5;
  *(uint32_t*)0x200004a4 = 0x7dff093b;
  syscall(__NR_setsockopt, /*fd=*/-1, /*level=*/0, /*optname=*/0x11,
          /*optval=*/0x200003c0ul, /*optlen=*/0xe8ul);
  *(uint32_t*)0x20000404 = 0;
  *(uint32_t*)0x20000408 = 0x4002;
  *(uint32_t*)0x2000040c = 0;
  *(uint32_t*)0x20000410 = 0;
  *(uint32_t*)0x20000418 = -1;
  memset((void*)0x2000041c, 0, 12);
  syz_io_uring_setup(/*entries=*/0x2c0c, /*params=*/0x20000400, /*ring_ptr=*/0,
                     /*sqes_ptr=*/0);
  return 0;
}