// https://syzkaller.appspot.com/bug?id=8a47019c46b0fcffca58d29c2b8edbe7f1b999f9
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

#include <linux/capability.h>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

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 setup_common()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setsid();
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  setup_common();
  sandbox_common();
  drop_caps();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  setup_binderfs();
  loop();
  exit(1);
}

uint64_t r[1] = {0xffffffffffffffff};

void loop(void)
{
  intptr_t res = 0;
  *(uint32_t*)0x20000200 = 3;
  *(uint32_t*)0x20000204 = 0xe;
  *(uint64_t*)0x20000208 = 0x20002280;
  memcpy(
      (void*)0x20002280,
      "\xb7\x02\x00\x00\x02\x00\x00\x00\xbf\xa3\x00\x00\x00\x00\x00\x00\x07\x03"
      "\x00\x00\x00\xfe\xff\xff\x7a\x0a\xf0\xff\xf8\xbf\xff\xfd\x79\xa4\xf0\xff"
      "\x00\x00\x00\x00\xb7\x06\x00\x00\xff\xff\xff\xff\x2d\x64\x05\x00\x00\x00"
      "\x00\x00\x65\x04\x04\x00\x01\x00\x1f\x05\x04\x04\x00\x00\x01\x00\x7d\x60"
      "\xb7\x03\x00\x00\x00\x00\x00\x00\x6a\x0a\x00\xfe\xfd\xff\x00\x00\x85\x00"
      "\x00\x00\x0d\x00\x00\x00\xb7\x00\x00\x00\x00\x00\x00\x00\x95\x00\x00\x00"
      "\x00\x00\x00\x00\xc7\x43\x96\xc8\xbb\xbb\x35\x23\x80\x97\x64\x51\x78\xd0"
      "\xba\xe3\xeb\xba\xdc\x20\xe5\xa7\xef\x8c\x9a\xc1\x46\x5c\x3a\x1f\x59\x91"
      "\x6f\xfc\x9b\xf0\xbd\x09\xf0\x7f\xb2\xea\x80\xe5\xcf\x8d\xf2\x65\xe1\xb4"
      "\x0e\x4c\x8a\xe7\xa8\x9c\xf8\xbd\x81\x9b\x5c\x0c\x00\x00\x00\x00\x8d\xa6"
      "\x80\x76\x77\x4b\xb4\xdb\x2c\x76\x99\x37\x00\x00\x90\xaf\x27\xdb\x5b\x56"
      "\x02\x4d\xb9\x6b\xcb\xbb\xd2\xcb\x20\x00\xce\xff\x07\x46\x73\xb4\xe8\xd5"
      "\x4e\x7e\x35\x77\x54\x50\x85\x35\x76\x6c\x80\x11\x46\x04\xea\xb9\xb2\x90"
      "\xa2\x48\xa1\x20\xc9\xc6\xe3\x9f\x30\x52\xaa\xe8\x06\x77\xee\xba\x68\x56"
      "\x2e\xae\x03\x00\x00\x00\x00\x27\x42\x33\x10\x6e\x2b\xaf\x69\xb1\xc6\x19"
      "\x0c\xe4\x09\x9f\x36\x6b\x89\xab\x63\xec\xf7\x72\xde\x7b\x26\x50\x40\xb6"
      "\xb1\xac\xbe\xf9\x2b\x27\x04\x55\x0a\x4d\x1d\xd5\xc5\x0b\x74\x20\xb5\x8a"
      "\x93\xfe\x94\xc7\x56\x00\x8a\xfc\xd0\xb2\xeb\x78\x56\x32\xe0\xa8\x5f\x02"
      "\xa5\x5c\x96\x02\x00\x00\x00\x49\x07\x00\x00\x00\x00\x00\x00\x12\x94\xfb"
      "\xa0\xed\x50\x20\xe6\x47\x7c\xc9\x21\xfe\xe1\xf6\xd8\xad\x6a\x2b\xe6\xaf"
      "\x7e\xc2\xd1\xba\x00\x00\x57\xf3\x01\x00\x00\x00\x00\x00\x00\x00\x01\x00"
      "\x00\x00\x00\x10\x00\x00\xaa\xf2\x53\x88\x6c\x0b\x7f\x00\x47\x31\xd7\x14"
      "\xad\x72\xe5\xad\x84\x30\xa6\x38\x0e\xd2\xd2\x9f\x47\xf9\x6a\x57\x6c\xd2"
      "\x0c\xef\x7e\xd9\x51\x57\xab\x05\x00\x00\xf0\x07\x7e\x9d\x13\xd8\xb9\x3e"
      "\xb0\xf2\xc6\xf8\x94\x1e\x35\xe1\x5d\x3d\x23\x69\xf5\xf1\x28\x16\xa4\xea"
      "\xee\xb1\xa6\x62\x88\x49\xeb\x70\x9d\xf5\xc6\xba\x73\xcc\xcd\xfa\x3c\x58"
      "\xbc\x52\x04\x33\x9b\x0b\x48\x7f\x0e\xee\xd5\x81\xcb\x20\x29\x94\xc4\x0d"
      "\x32\x27\x17\xc3\x38\x03\x32\x13\xc1\x8a\x00\xd4\x34\xee\x0c\xa2\xcf\x61"
      "\xef\xb4\xb3\x79\x7a\x64\x27\x35\xd6\xd4\x82\xba\x98\xd2\x52\xf3\x6c\x54"
      "\x33\x3a\xab\x3a\xa7\x36\x36\x9d\x92\x23\x98\x20\xf5\xf1\x55\x7b\x0b\xf7"
      "\xcc\xb0\xa5\xa1\x3c\x71\x4e\x0b\x1a\x5b\xc3\xf9\xca\xff\x32\x83\x07\x6c"
      "\xda\x3d\x0b\x1a\x29\x05\xcf\x7b\xd0\x4f\x2d\xb5\x30\xab\xcb\xe4\x4b\xc4"
      "\x05\x28\xad\x80\x79\x70\x72\x7f\xb8\x19\xaf\xa1\x4a\xad\x99\xf9\x30\xf1"
      "\xf7\xd7\xdd\x51\x99\x5e\xdc\xf5\x3b\x90\x72\x28\xfa\x9e\x83\x43\x4e\x71"
      "\xd5\xc5\x7f\x33\x70\x2f\x22\xb2\x24\x17\xbf\xb3\x8d\x04\xc8\x44\x1c\xee"
      "\xc8\xbc\xaf\xfb\xe8\x00\xa0\x41\x30\x7b\xd8\x32\x5a\x76\xf3\x95\xbc\xed"
      "\x3d\x3e\x9d\xe8\x29\x42\xa9\x52\xe8\x6b\xd6\x7a\xff\x5b\xc2\xe3\xc1\xfc"
      "\xc0\x0f\x61\x12\x4d\xd0\x6d\xf4\xb8\xfd\x35\x6c\xb3\x65\xad\xc0\x37\xe4"
      "\x43\x82\x0c\x05\xc5\xca\xe7\xbf\xcd\x55\xf8\xc8\x1f\x5e\xb1\xf8\xd6\x15"
      "\xca\x27\xef\xb2\x19\x3b\xb6\x16\x65\x10\x3b\x37\xf3\x0c\x2e\xfc\x9c\x3b"
      "\x5a\x4a\x5d\x95\x47\x9f\x81\xa1\x00\x00\x0f\xbd\x0e\x50\x22\x35\x17\x4f"
      "\x3a\x34\x84\x12\x4c\x55\x63\xcd\x37\x00\x00\x00\x00\x00\x18\x25\xb0\x5a"
      "\x58\x0e\xa8\xcb\x7f\x85\xb7\x7b\x35\xa0\x6a\x89\x5b\x28\x7b\x47\xef\xba"
      "\x22\x0b\xc2\x15\xac\xa4\xbb\x09\xb9\x1a\xda\xc5\x7a\x98\xfc\x8f\xdd\xa4"
      "\x7b\x35\x71\x70\xa6\x5d\x70\x18\xa7\xf9\x1c\x42\x28\xb3\x5f\x71\xa7\x09"
      "\x00\x00\x00\x00\x00\x00\x00\x87\x00\x86\xd8\x51\xff\x86\x25\xe0\x7b\xbe"
      "\xc8\x01\xb7\x9a\xfa\x47\x7e\xba\xb2\x55\xc7\x26\x58\x20\x45\x6f\xdc\x3f"
      "\x34\xf9\xd7\x29\x31\x5d\x85\x6b\xe7\xec\x56\x46\x13\xd5\xe2\x8c\xf7\xc4"
      "\x05\xd6\xe2\xb6\xae\xb2\x00\x00\xb8\x50\x5a\x36\xa8\x06\x7c\xb4\x59\xfa"
      "\xb8\x7c\x8d\xe1\x0e\x11\x77\x33\xd3\x0f\x4f\xe0\x49\x65\x8a\x2c\x3e\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\xb0\x16\xe6\x7b\x85\x6f\xf3\xa2\x21\xb1\x73\x09"
      "\x3d\xfe\x50\xf3\xc4\x1c\x05\x5d\x5c\xa6\x39\xbc\xa7\x60\xf9\xfa\x02\x92"
      "\x88\xde\x5e\xc3\x0a\xee\xce\xc0\x11\xac\xe9\x29\xde\x00\x00\x00\x0a\x85"
      "\x01\x19\x4d\x4f\xbc\xe2\x36\xfa\xef\xd8\xac\x47\x9e\x19\xfd\x6a\xc3\xa4"
      "\xa6\xd7\x19\x02\x0a\xe4\x86\x01\xb4\xdd\x74\xf7\x67\x69\xf6\xfc\x19\x0b"
      "\x32\xde\x66\xc4\x9f\x37\x00\xb0\xab\x91\x0e\x74\x6e\xaa\x0b\x4e\xca\xe2"
      "\x92\x8d\x78\xe3\x33\x87\xf2\xf0\xea\x69\x59\x9f\x11\xc1\x77\xd5\xd9\xcb"
      "\x12\xdb\x74\x79\x71\x51\x31\xb0\x26\xad\x1b\xdc\x7b\xd1\xfe\xe3\x6d\xb9"
      "\x90\x6e\xdd\x9d\x99\x59\x5c\x18\x44\xd0\xb1\xb8\x5d\x97\xcd\x30\x39\xa8"
      "\x19\xda\x4c\xbe\x98\x29\xec\x0f\xe1\xb6\x64\xfb\xd1\x78\xd4\xdb\xfa\x00"
      "\x00\x00\x85\x93\x33\x17\x01\x9e\xf3\x3a\xcc\x50\xef\x83\x3d\xb6\x26\x33"
      "\x71\xbc\x6d\x2e\x89\x39\xbf\x90\x0b\x39\x4b\x58\x5d\xf5\x9a\x09\xc7\x99"
      "\x5a\x97\xbc\xc4\x9d\x8b\xe4\xc8\x2b\xe1\x44\xeb\x4d\xdc\x09\x6f\x44\xbe"
      "\xfc\xe6\x5c\xe8\x29\x40\x50\xc4\x04\xc9\xf4\x95\xa2\xbf\x3f\x7b\x06\xbf"
      "\x51\x3a\x18\x3e\x52\x82\xed\x2f\x9a\xdd\x05\xd5\xdd\x2b\x5e\xee\xc7\x26"
      "\x97\x25\xc0\xc5\x74\x98\x11\x0f\x63\x73\x3c\x49\x1f\xde\xab\x10\x23\xd1"
      "\xc7\xca\xb6\xe5\x54\x76\x4e\x5b\x5a\x88\x3a\xeb\x5c\xd8\xa9\x25\xda\x9c"
      "\xfe\xf3\x69\xde\xa0\x81\x00\xa2\x38\x13\x46\x53\x54\xb2\x93\x96\x14\xdb"
      "\xc6\x9f\xc6\xb5\xce\x1b\x1f\x75\x83\x5d\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00",
      1278);
  *(uint64_t*)0x20000210 = 0x20000340;
  memcpy((void*)0x20000340, "syzkaller\000", 10);
  *(uint32_t*)0x20000218 = 0;
  *(uint32_t*)0x2000021c = 0;
  *(uint64_t*)0x20000220 = 0;
  *(uint32_t*)0x20000228 = 0;
  *(uint32_t*)0x2000022c = 0;
  memset((void*)0x20000230, 0, 16);
  *(uint32_t*)0x20000240 = 0;
  *(uint32_t*)0x20000244 = 0;
  *(uint32_t*)0x20000248 = -1;
  *(uint32_t*)0x2000024c = 8;
  *(uint64_t*)0x20000250 = 0x20000000;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000258 = 0;
  *(uint32_t*)0x2000025c = 0x10;
  *(uint64_t*)0x20000260 = 0x20000000;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint32_t*)0x2000000c = 0;
  *(uint32_t*)0x20000268 = 0x2ca;
  *(uint32_t*)0x2000026c = 0;
  *(uint32_t*)0x20000270 = -1;
  *(uint32_t*)0x20000274 = 0;
  *(uint64_t*)0x20000278 = 0;
  res = syscall(__NR_bpf, 5ul, 0x20000200ul, 0x26ul);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20000080 = r[0];
  *(uint32_t*)0x20000084 = 0x2a0;
  *(uint32_t*)0x20000088 = 0xe;
  *(uint32_t*)0x2000008c = 0;
  *(uint64_t*)0x20000090 = 0x20000040;
  memcpy((void*)0x20000040,
         "\xb9\x07\x03\x60\x00\x00\xf0\x07\x04\x9e\x0f\xf0\x08\x00", 14);
  *(uint64_t*)0x20000098 = 0;
  *(uint32_t*)0x200000a0 = 0;
  *(uint32_t*)0x200000a4 = 0xa000000;
  *(uint32_t*)0x200000a8 = 0;
  *(uint32_t*)0x200000ac = 0;
  *(uint64_t*)0x200000b0 = 0;
  *(uint64_t*)0x200000b8 = 0;
  *(uint32_t*)0x200000c0 = 0;
  *(uint32_t*)0x200000c4 = 0;
  syscall(__NR_bpf, 0xaul, 0x20000080ul, 0x48ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  do_sandbox_none();
  return 0;
}