// https://syzkaller.appspot.com/bug?id=ed7285b3b5ca4209c6065470667b8aa09270ee90
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

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;
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

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

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  *(uint64_t*)0x200000000140 = 8;
  *(uint64_t*)0x200000000148 = 0x20000008b;
  syscall(__NR_prlimit64, /*pid=*/0, /*res=RLIMIT_RTPRIO*/ 0xeul,
          /*new=*/0x200000000140ul, /*old=*/0ul);
  *(uint32_t*)0x200000000080 = 7;
  syscall(__NR_sched_setscheduler, /*pid=*/0, /*policy=SCHED_FIFO*/ 1ul,
          /*prio=*/0x200000000080ul);
  *(uint32_t*)0x200000000240 = 2;
  *(uint32_t*)0x200000000244 = 4;
  *(uint32_t*)0x200000000248 = 8;
  *(uint32_t*)0x20000000024c = 1;
  *(uint32_t*)0x200000000250 = 0x80;
  *(uint32_t*)0x200000000254 = -1;
  *(uint32_t*)0x200000000258 = 0;
  memset((void*)0x20000000025c, 0, 16);
  *(uint32_t*)0x20000000026c = 0;
  *(uint32_t*)0x200000000270 = 0;
  *(uint32_t*)0x200000000274 = 0;
  *(uint32_t*)0x200000000278 = 0;
  *(uint32_t*)0x20000000027c = 0;
  *(uint64_t*)0x200000000280 = 0;
  *(uint32_t*)0x200000000288 = 0;
  *(uint32_t*)0x20000000028c = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000240ul, /*size=*/0x50ul);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x2000000000c0 = 0x1b;
  *(uint32_t*)0x2000000000c4 = 0;
  *(uint32_t*)0x2000000000c8 = 0;
  *(uint32_t*)0x2000000000cc = 0x40000;
  *(uint32_t*)0x2000000000d0 = 0;
  *(uint32_t*)0x2000000000d4 = 0;
  *(uint32_t*)0x2000000000d8 = 0;
  memset((void*)0x2000000000dc, 0, 16);
  *(uint32_t*)0x2000000000ec = 0;
  *(uint32_t*)0x2000000000f0 = 0;
  *(uint32_t*)0x2000000000f4 = 0;
  *(uint32_t*)0x2000000000f8 = 0;
  *(uint32_t*)0x2000000000fc = 0;
  *(uint64_t*)0x200000000100 = 0;
  *(uint32_t*)0x200000000108 = 0;
  *(uint32_t*)0x20000000010c = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x2000000000c0ul, /*size=*/0x50ul);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x200000000840 = 6;
  *(uint32_t*)0x200000000844 = 0x1c;
  *(uint64_t*)0x200000000848 = 0x200000000d80;
  *(uint8_t*)0x200000000d80 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200000000d81, 8, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000d81, 0, 4, 4);
  *(uint16_t*)0x200000000d82 = 0;
  *(uint32_t*)0x200000000d84 = 2;
  *(uint8_t*)0x200000000d88 = 0;
  *(uint8_t*)0x200000000d89 = 0;
  *(uint16_t*)0x200000000d8a = 0;
  *(uint32_t*)0x200000000d8c = 0;
  *(uint8_t*)0x200000000d90 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200000000d91, 1, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000d91, 1, 4, 4);
  *(uint16_t*)0x200000000d92 = 0;
  *(uint32_t*)0x200000000d94 = r[1];
  *(uint8_t*)0x200000000d98 = 0;
  *(uint8_t*)0x200000000d99 = 0;
  *(uint16_t*)0x200000000d9a = 0;
  *(uint32_t*)0x200000000d9c = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000da0, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000da0, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000da0, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000da1, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000da1, 0, 4, 4);
  *(uint16_t*)0x200000000da2 = 0;
  *(uint32_t*)0x200000000da4 = 0x14;
  STORE_BY_BITMASK(uint8_t, , 0x200000000da8, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000da8, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000da8, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000da9, 3, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000da9, 0, 4, 4);
  *(uint16_t*)0x200000000daa = 0;
  *(uint32_t*)0x200000000dac = 0;
  *(uint8_t*)0x200000000db0 = 0x85;
  *(uint8_t*)0x200000000db1 = 0;
  *(uint16_t*)0x200000000db2 = 0;
  *(uint32_t*)0x200000000db4 = 5;
  STORE_BY_BITMASK(uint8_t, , 0x200000000db8, 4, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000db8, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000db8, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000db9, 9, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000db9, 0xa, 4, 4);
  *(uint16_t*)0x200000000dba = 0;
  *(uint32_t*)0x200000000dbc = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000dc0, 5, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dc0, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dc0, 3, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dc1, 9, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dc1, 0, 4, 4);
  *(uint16_t*)0x200000000dc2 = 1;
  *(uint32_t*)0x200000000dc4 = 0;
  *(uint8_t*)0x200000000dc8 = 0x95;
  *(uint8_t*)0x200000000dc9 = 0;
  *(uint16_t*)0x200000000dca = 0;
  *(uint32_t*)0x200000000dcc = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd0, 5, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd0, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd0, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd1, 9, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd1, 0, 4, 4);
  *(uint16_t*)0x200000000dd2 = 2;
  *(uint32_t*)0x200000000dd4 = 2;
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd8, 3, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd8, 2, 3, 2);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd8, 3, 5, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd9, 0xa, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000dd9, 9, 4, 4);
  *(uint16_t*)0x200000000dda = 0xfe00;
  *(uint32_t*)0x200000000ddc = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000de0, 5, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000de0, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000de0, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000de1, 9, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000de1, 0, 4, 4);
  *(uint16_t*)0x200000000de2 = 0;
  *(uint32_t*)0x200000000de4 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000de8, 3, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000de8, 0, 3, 2);
  STORE_BY_BITMASK(uint8_t, , 0x200000000de8, 6, 5, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000de9, 0xa, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000de9, 9, 4, 4);
  *(uint16_t*)0x200000000dea = 0xfe04;
  *(uint32_t*)0x200000000dec = 0xe1;
  STORE_BY_BITMASK(uint8_t, , 0x200000000df0, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000df0, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000df0, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000df1, 7, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000df1, 8, 4, 4);
  *(uint16_t*)0x200000000df2 = 0;
  *(uint32_t*)0x200000000df4 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000df8, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000df8, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000df8, 0, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000df9, 8, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000df9, 0, 4, 4);
  *(uint16_t*)0x200000000dfa = 0;
  *(uint32_t*)0x200000000dfc = 0xfffffff8;
  STORE_BY_BITMASK(uint8_t, , 0x200000000e00, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e00, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e00, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e01, 4, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e01, 0xa, 4, 4);
  *(uint16_t*)0x200000000e02 = 0;
  *(uint32_t*)0x200000000e04 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000e08, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e08, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e08, 0, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e09, 4, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e09, 0, 4, 4);
  *(uint16_t*)0x200000000e0a = 0;
  *(uint32_t*)0x200000000e0c = 0xfffffff0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000e10, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e10, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e10, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e11, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e11, 0, 4, 4);
  *(uint16_t*)0x200000000e12 = 0;
  *(uint32_t*)0x200000000e14 = 8;
  *(uint8_t*)0x200000000e18 = 0x18;
  STORE_BY_BITMASK(uint8_t, , 0x200000000e19, 2, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e19, 2, 4, 4);
  *(uint16_t*)0x200000000e1a = 0;
  *(uint32_t*)0x200000000e1c = r[0];
  *(uint8_t*)0x200000000e20 = 0;
  *(uint8_t*)0x200000000e21 = 0;
  *(uint16_t*)0x200000000e22 = 0;
  *(uint32_t*)0x200000000e24 = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000e28, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e28, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e28, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e29, 5, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e29, 0, 4, 4);
  *(uint16_t*)0x200000000e2a = 0;
  *(uint32_t*)0x200000000e2c = 8;
  *(uint8_t*)0x200000000e30 = 0x46;
  *(uint8_t*)0x200000000e31 = 8;
  *(uint16_t*)0x200000000e32 = 0xfff0;
  *(uint32_t*)0x200000000e34 = 0x76;
  STORE_BY_BITMASK(uint8_t, , 0x200000000e38, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e38, 1, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e38, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e39, 8, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e39, 9, 4, 4);
  *(uint16_t*)0x200000000e3a = 0;
  *(uint32_t*)0x200000000e3c = 0;
  STORE_BY_BITMASK(uint8_t, , 0x200000000e40, 6, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e40, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e40, 5, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e41, 8, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e41, 0, 4, 4);
  *(uint16_t*)0x200000000e42 = 0;
  *(uint32_t*)0x200000000e44 = 0;
  *(uint8_t*)0x200000000e48 = 0x85;
  *(uint8_t*)0x200000000e49 = 0;
  *(uint16_t*)0x200000000e4a = 0;
  *(uint32_t*)0x200000000e4c = 7;
  STORE_BY_BITMASK(uint8_t, , 0x200000000e50, 7, 0, 3);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e50, 0, 3, 1);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e50, 0xb, 4, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e51, 0, 0, 4);
  STORE_BY_BITMASK(uint8_t, , 0x200000000e51, 0, 4, 4);
  *(uint16_t*)0x200000000e52 = 0;
  *(uint32_t*)0x200000000e54 = 0;
  *(uint8_t*)0x200000000e58 = 0x95;
  *(uint8_t*)0x200000000e59 = 0;
  *(uint16_t*)0x200000000e5a = 0;
  *(uint32_t*)0x200000000e5c = 0;
  *(uint64_t*)0x200000000850 = 0x200000000980;
  memcpy((void*)0x200000000980, "GPL\000", 4);
  *(uint32_t*)0x200000000858 = 0;
  *(uint32_t*)0x20000000085c = 0;
  *(uint64_t*)0x200000000860 = 0;
  *(uint32_t*)0x200000000868 = 0;
  *(uint32_t*)0x20000000086c = 0;
  memset((void*)0x200000000870, 0, 16);
  *(uint32_t*)0x200000000880 = 0;
  *(uint32_t*)0x200000000884 = 0x10;
  *(uint32_t*)0x200000000888 = 0;
  *(uint32_t*)0x20000000088c = 0;
  *(uint64_t*)0x200000000890 = 0;
  *(uint32_t*)0x200000000898 = 0;
  *(uint32_t*)0x20000000089c = 0;
  *(uint64_t*)0x2000000008a0 = 0;
  *(uint32_t*)0x2000000008a8 = 0;
  *(uint32_t*)0x2000000008ac = 0;
  *(uint32_t*)0x2000000008b0 = 0;
  *(uint32_t*)0x2000000008b4 = 0;
  *(uint64_t*)0x2000000008b8 = 0;
  *(uint64_t*)0x2000000008c0 = 0;
  *(uint32_t*)0x2000000008c8 = 0;
  *(uint32_t*)0x2000000008cc = 0;
  *(uint32_t*)0x2000000008d0 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000840ul, /*size=*/0x94ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}