// https://syzkaller.appspot.com/bug?id=a6948ba3e592d6bdf3f4530088f70b7efdd6db0f
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

unsigned long long procid;

static void kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

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 execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

#ifndef SYS__lwp_getname
#define SYS__lwp_getname 324
#endif
#ifndef SYS__lwp_setname
#define SYS__lwp_setname 323
#endif
#ifndef SYS_mmap
#define SYS_mmap 197
#endif

void execute_one(void)
{
  memcpy((void*)0x20000240,
         ">\337\322k!\367\257[-=\31437\373\372\002\362ZJ\203\237\260!"
         "\351W\360F\265\377\r\205\320>!\220\311go7\317D\005\322o\272\223\317+."
         "\000\000\000\000\000\000\a\000\000\000\000\0002d\314\000\000\000\000t"
         "I\306I}\370\\\213[\224\032\331\033\263\375b8\3402@"
         "7\302\265\261\301mM,\257vj\204-\030[\212 ",
         105);
  syscall(SYS__lwp_setname, 0, 0x20000240ul);
  syscall(SYS__lwp_getname, 0, 0ul, 0ul);
}
int main(void)
{
  syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}