syzkaller-repros/linux/bfc3f972760618caea8f21371b32d8071ce0a56a.c

// possible deadlock in fifo_open
// https://syzkaller.appspot.com/bug?id=bfc3f972760618caea8f21371b32d8071ce0a56a
// status:dup
// 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/syscall.h>
#include <sys/types.h>
#include <unistd.h>

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  long res = 0;
  res = syscall(__NR_pipe, 0x20000c40);
  if (res != -1) {
    r[0] = *(uint32_t*)0x20000c40;
    r[1] = *(uint32_t*)0x20000c44;
  }
  res = syscall(__NR_socket, 2, 2, 0);
  if (res != -1)
    r[2] = res;
  syscall(__NR_close, r[2]);
  memcpy((void*)0x20000000, "/proc/thread-self/attr/exec\000", 28);
  syscall(__NR_openat, 0xffffffffffffff9c, 0x20000000, 2, 0);
  *(uint32_t*)0x20000040 = r[2];
  *(uint16_t*)0x20000044 = -1;
  sprintf((char*)0x20000046, "%020llu", (long long)-1);
  sprintf((char*)0x2000005a, "%020llu", (long long)-1);
  syscall(__NR_write, r[1], 0x20000040, 0x2e);
  syscall(__NR_splice, r[0], 0, r[2], 0, 0x10005, 0);
  memcpy((void*)0x20000200, "./file0\000", 8);
  syscall(__NR_mknod, 0x20000200, 0x1041, 0x4000);
  memcpy((void*)0x20000480, "./file0\000", 8);
  syscall(__NR_execve, 0x20000480, 0, 0);
  return 0;
}