// https://syzkaller.appspot.com/bug?id=4b0e06a6714d9421fac0f2e13ca91140b579fb52
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <signal.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/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_link.h>
#include <linux/in6.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/veth.h>

#ifndef __NR_ioctl
#define __NR_ioctl 29
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif

static unsigned long long procid;

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 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;
}

struct nlmsg {
  char* pos;
  int nesting;
  struct nlattr* nested[8];
  char buf[4096];
};

static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
                         const void* data, int size)
{
  memset(nlmsg, 0, sizeof(*nlmsg));
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_type = typ;
  hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
  memcpy(hdr + 1, data, size);
  nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}

static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
                         int size)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_len = sizeof(*attr) + size;
  attr->nla_type = typ;
  if (size > 0)
    memcpy(attr + 1, data, size);
  nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}

static void netlink_nest(struct nlmsg* nlmsg, int typ)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_type = typ;
  nlmsg->pos += sizeof(*attr);
  nlmsg->nested[nlmsg->nesting++] = attr;
}

static void netlink_done(struct nlmsg* nlmsg)
{
  struct nlattr* attr = nlmsg->nested[--nlmsg->nesting];
  attr->nla_len = nlmsg->pos - (char*)attr;
}

static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
                            int* reply_len, bool dofail)
{
  if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
    exit(1);
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
  struct sockaddr_nl addr;
  memset(&addr, 0, sizeof(addr));
  addr.nl_family = AF_NETLINK;
  ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                     (struct sockaddr*)&addr, sizeof(addr));
  if (n != (ssize_t)hdr->nlmsg_len) {
    if (dofail)
      exit(1);
    return -1;
  }
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (reply_len)
    *reply_len = 0;
  if (n < 0) {
    if (dofail)
      exit(1);
    return -1;
  }
  if (n < (ssize_t)sizeof(struct nlmsghdr)) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type == NLMSG_DONE)
    return 0;
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type != NLMSG_ERROR) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  errno = -((struct nlmsgerr*)(hdr + 1))->error;
  return -errno;
}

static int netlink_send(struct nlmsg* nlmsg, int sock)
{
  return netlink_send_ext(nlmsg, sock, 0, NULL, true);
}

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name, bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = CTRL_CMD_GETFAMILY;
  netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
               strnlen(family_name, GENL_NAMSIZ - 1) + 1);
  int n = 0;
  int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
  if (err < 0) {
    return -1;
  }
  uint16_t id = 0;
  struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
                                         NLMSG_ALIGN(sizeof(genlhdr)));
  for (; (char*)attr < nlmsg->buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
      id = *(uint16_t*)(attr + 1);
      break;
    }
  }
  if (!id) {
    errno = EINVAL;
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

static unsigned int queue_count = 2;

static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type,
                                    const char* name, bool up)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  if (name)
    netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name));
  netlink_attr(nlmsg, IFLA_NUM_TX_QUEUES, &queue_count, sizeof(queue_count));
  netlink_attr(nlmsg, IFLA_NUM_RX_QUEUES, &queue_count, sizeof(queue_count));
  netlink_nest(nlmsg, IFLA_LINKINFO);
  netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type));
}

static void netlink_device_change(struct nlmsg* nlmsg, int sock,
                                  const char* name, bool up, const char* master,
                                  const void* mac, int macsize,
                                  const char* new_name)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  hdr.ifi_index = if_nametoindex(name);
  netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
  if (new_name)
    netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
  if (master) {
    int ifindex = if_nametoindex(master);
    netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
  }
  if (macsize)
    netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static struct nlmsg nlmsg;

static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    unsigned long nb = a1;
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(nb % 10);
      nb /= 10;
    }
    return open(buf, a2 & ~O_CREAT, 0);
  }
}

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 setup_sysctl()
{
  int cad_pid = fork();
  if (cad_pid < 0)
    exit(1);
  if (cad_pid == 0) {
    for (;;)
      sleep(100);
  }
  char tmppid[32];
  snprintf(tmppid, sizeof(tmppid), "%d", cad_pid);
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/sys/kernel/debug/failslab/task-filter", "Y"},
      {"/sys/kernel/debug/fail_page_alloc/task-filter", "Y"},
      {"/sys/kernel/debug/fail_futex/task-filter", "Y"},
      {"/sys/kernel/debug/fail_usercopy/task-filter", "Y"},
      {"/sys/kernel/debug/fail_make_request/task-filter", "Y"},
      {"/sys/kernel/debug/fail_io_timeout/task-filter", "Y"},
      {"/sys/kernel/debug/fail_iommufd/task-filter", "Y"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", tmppid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data)) {
    }
  }
  kill(cad_pid, SIGKILL);
  while (waitpid(cad_pid, NULL, 0) != cad_pid)
    ;
}

#define NL802154_CMD_SET_SHORT_ADDR 11
#define NL802154_ATTR_IFINDEX 3
#define NL802154_ATTR_SHORT_ADDR 10

static const char* setup_802154()
{
  const char* error = NULL;
  int sock_generic = -1;
  int sock_route = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock_route == -1) {
    error = "socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) failed";
    goto fail;
  }
  sock_generic = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock_generic == -1) {
    error = "socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) failed";
    goto fail;
  }
  {
    int nl802154_family_id =
        netlink_query_family_id(&nlmsg, sock_generic, "nl802154", true);
    if (nl802154_family_id < 0) {
      error = "netlink_query_family_id failed";
      goto fail;
    }
    for (int i = 0; i < 2; i++) {
      char devname[] = "wpan0";
      devname[strlen(devname) - 1] += i;
      uint64_t hwaddr = 0xaaaaaaaaaaaa0002 + (i << 8);
      uint16_t shortaddr = 0xaaa0 + i;
      int ifindex = if_nametoindex(devname);
      struct genlmsghdr genlhdr;
      memset(&genlhdr, 0, sizeof(genlhdr));
      genlhdr.cmd = NL802154_CMD_SET_SHORT_ADDR;
      netlink_init(&nlmsg, nl802154_family_id, 0, &genlhdr, sizeof(genlhdr));
      netlink_attr(&nlmsg, NL802154_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
      netlink_attr(&nlmsg, NL802154_ATTR_SHORT_ADDR, &shortaddr,
                   sizeof(shortaddr));
      if (netlink_send(&nlmsg, sock_generic) < 0) {
        error = "NL802154_CMD_SET_SHORT_ADDR failed";
        goto fail;
      }
      netlink_device_change(&nlmsg, sock_route, devname, true, 0, &hwaddr,
                            sizeof(hwaddr), 0);
      if (i == 0) {
        netlink_add_device_impl(&nlmsg, "lowpan", "lowpan0", false);
        netlink_done(&nlmsg);
        netlink_attr(&nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
        if (netlink_send(&nlmsg, sock_route) < 0) {
          error = "netlink: adding device lowpan0 type lowpan link wpan0";
          goto fail;
        }
      }
    }
  }
fail:
  close(sock_route);
  close(sock_generic);
  return error;
}

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[6] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_open_dev$dri arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 64 72 69 2f 63 61 72 64 23 00} (length 0xf)
  //    }
  //    id: intptr = 0x1ff (8 bytes)
  //    flags: open_flags = 0x0 (8 bytes)
  //  ]
  //  returns fd_dri
  memcpy((void*)0x200000c0, "/dev/dri/card#\000", 15);
  res = -1;
  res = syz_open_dev(/*dev=*/0x200000c0, /*id=*/0x1ff, /*flags=*/0);
  if (res != -1)
    r[0] = res;
  //  syz_open_dev$dri arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 64 72 69 2f 63 61 72 64 23 00} (length 0xf)
  //    }
  //    id: intptr = 0x40100001 (8 bytes)
  //    flags: open_flags = 0x0 (8 bytes)
  //  ]
  //  returns fd_dri
  memcpy((void*)0x20000080, "/dev/dri/card#\000", 15);
  res = -1;
  res = syz_open_dev(/*dev=*/0x20000080, /*id=*/0x40100001, /*flags=*/0);
  if (res != -1)
    r[1] = res;
  //  ioctl$DRM_IOCTL_SET_CLIENT_CAP arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0x4010640d (4 bytes)
  //    arg: ptr[in, drm_get_cap] {
  //      drm_get_cap {
  //        cap: drm_cap = 0x3 (8 bytes)
  //        val: const = 0x2 (8 bytes)
  //      }
  //    }
  //  ]
  *(uint64_t*)0x20000000 = 3;
  *(uint64_t*)0x20000008 = 2;
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x4010640d, /*arg=*/0x20000000ul);
  //  ioctl$DRM_IOCTL_MODE_GETPLANERESOURCES arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0xc01064b5 (4 bytes)
  //    arg: ptr[inout, drm_mode_get_plane_res] {
  //      drm_mode_get_plane_res {
  //        ids: ptr[out, array[drm_plane_id]] {
  //          array[drm_plane_id] {
  //            drm_plane_id (resource)
  //          }
  //        }
  //        cnt: len = 0x1 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //  ]
  *(uint64_t*)0x20000140 = 0x20000100;
  *(uint32_t*)0x20000148 = 1;
  res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0xc01064b5,
                /*arg=*/0x20000140ul);
  if (res != -1)
    r[2] = *(uint32_t*)0x20000100;
  //  ioctl$DRM_IOCTL_MODE_GETPLANE arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0xc02064b6 (4 bytes)
  //    arg: ptr[inout, drm_mode_get_plane] {
  //      drm_mode_get_plane {
  //        plane_id: drm_plane_id (resource)
  //        crtc_id: drm_crtc_id (resource)
  //        fb_id: drm_fb_id (resource)
  //        possible_crtcs: const = 0x0 (4 bytes)
  //        gamma_size: const = 0x0 (4 bytes)
  //        count_format_types: len = 0x0 (4 bytes)
  //        format_type_ptr: nil
  //      }
  //    }
  //  ]
  *(uint32_t*)0x200002c0 = r[2];
  *(uint32_t*)0x200002c4 = 0;
  *(uint32_t*)0x200002c8 = 0;
  *(uint32_t*)0x200002cc = 0;
  *(uint32_t*)0x200002d0 = 0;
  *(uint32_t*)0x200002d4 = 0;
  *(uint64_t*)0x200002d8 = 0;
  res = syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc02064b6,
                /*arg=*/0x200002c0ul);
  if (res != -1) {
    r[3] = *(uint32_t*)0x200002c4;
    r[4] = *(uint32_t*)0x200002c8;
  }
  //  ioctl$DRM_IOCTL_MODE_GETRESOURCES arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0xc04064a0 (4 bytes)
  //    arg: ptr[inout, drm_mode_card_res] {
  //      drm_mode_card_res {
  //        fbid: nil
  //        crtcid: nil
  //        connid: ptr[out, array[drm_connector_id]] {
  //          array[drm_connector_id] {
  //            drm_connector_id (resource)
  //          }
  //        }
  //        encid: nil
  //        nfbid: len = 0x0 (4 bytes)
  //        ncrtcid: len = 0x0 (4 bytes)
  //        nconnid: len = 0x1 (4 bytes)
  //        nencid: len = 0x0 (4 bytes)
  //        maxw: const = 0x0 (4 bytes)
  //        maxh: const = 0x0 (4 bytes)
  //        minw: const = 0x0 (4 bytes)
  //        minh: const = 0x0 (4 bytes)
  //      }
  //    }
  //  ]
  *(uint64_t*)0x200006c0 = 0;
  *(uint64_t*)0x200006c8 = 0;
  *(uint64_t*)0x200006d0 = 0x20000640;
  *(uint64_t*)0x200006d8 = 0;
  *(uint32_t*)0x200006e0 = 0;
  *(uint32_t*)0x200006e4 = 0;
  *(uint32_t*)0x200006e8 = 1;
  *(uint32_t*)0x200006ec = 0;
  *(uint32_t*)0x200006f0 = 0;
  *(uint32_t*)0x200006f4 = 0;
  *(uint32_t*)0x200006f8 = 0;
  *(uint32_t*)0x200006fc = 0;
  res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0xc04064a0,
                /*arg=*/0x200006c0ul);
  if (res != -1)
    r[5] = *(uint32_t*)0x20000640;
  //  ioctl$DRM_IOCTL_MODE_SETCRTC arguments: [
  //    fd: fd_dri (resource)
  //    cmd: const = 0xc06864a2 (4 bytes)
  //    arg: ptr[in, drm_mode_crtc$DRM_IOCTL_MODE_SETCRTC] {
  //      drm_mode_crtc$DRM_IOCTL_MODE_SETCRTC {
  //        set_connectors_ptr: ptr[in, array[drm_connector_id]] {
  //          array[drm_connector_id] {
  //            drm_connector_id (resource)
  //          }
  //        }
  //        count_connectors: len = 0x1 (4 bytes)
  //        crtc_id: drm_crtc_id (resource)
  //        fb_id: drm_fb_id (resource)
  //        x: int32 = 0x3 (4 bytes)
  //        y: int32 = 0x5 (4 bytes)
  //        gamma_size: int32 = 0x2 (4 bytes)
  //        mode_valid: int32 = 0x80003 (4 bytes)
  //        mode: drm_mode_modeinfo {
  //          clock: int32 = 0xac7c (4 bytes)
  //          hdisplay: int16 = 0x1 (2 bytes)
  //          hsync_start: int16 = 0x7 (2 bytes)
  //          hsync_end: int16 = 0x69 (2 bytes)
  //          htotal: int16 = 0xf4b (2 bytes)
  //          hskew: int16 = 0x2 (2 bytes)
  //          vdisplay: int16 = 0x2 (2 bytes)
  //          vsync_start: int16 = 0x5 (2 bytes)
  //          vsync_end: int16 = 0x412f (2 bytes)
  //          vtotal: int16 = 0xe154 (2 bytes)
  //          vscan: int16 = 0x24 (2 bytes)
  //          vrefresh: int32 = 0x7 (4 bytes)
  //          flags: int32 = 0xb2bf (4 bytes)
  //          type: int32 = 0x3 (4 bytes)
  //          name: buffer: {fe 1d 00 00 34 13 00 00 00 00 00 00 00 0c aa 00 00
  //          00 09 00 00 00 00 00 00 00 04 b4 27 18 00 10} (length 0x20)
  //        }
  //      }
  //    }
  //  ]
  *(uint64_t*)0x20000300 = 0x20000180;
  *(uint32_t*)0x20000180 = r[5];
  *(uint32_t*)0x20000308 = 1;
  *(uint32_t*)0x2000030c = r[3];
  *(uint32_t*)0x20000310 = r[4];
  *(uint32_t*)0x20000314 = 3;
  *(uint32_t*)0x20000318 = 5;
  *(uint32_t*)0x2000031c = 2;
  *(uint32_t*)0x20000320 = 0x80003;
  *(uint32_t*)0x20000324 = 0xac7c;
  *(uint16_t*)0x20000328 = 1;
  *(uint16_t*)0x2000032a = 7;
  *(uint16_t*)0x2000032c = 0x69;
  *(uint16_t*)0x2000032e = 0xf4b;
  *(uint16_t*)0x20000330 = 2;
  *(uint16_t*)0x20000332 = 2;
  *(uint16_t*)0x20000334 = 5;
  *(uint16_t*)0x20000336 = 0x412f;
  *(uint16_t*)0x20000338 = 0xe154;
  *(uint16_t*)0x2000033a = 0x24;
  *(uint32_t*)0x2000033c = 7;
  *(uint32_t*)0x20000340 = 0xb2bf;
  *(uint32_t*)0x20000344 = 3;
  memcpy((void*)0x20000348,
         "\xfe\x1d\x00\x00\x34\x13\x00\x00\x00\x00\x00\x00\x00\x0c\xaa\x00\x00"
         "\x00\x09\x00\x00\x00\x00\x00\x00\x00\x04\xb4\x27\x18\x00\x10",
         32);
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0xc06864a2, /*arg=*/0x20000300ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000,
          /*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=*/0x21000000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  setup_sysctl();
  const char* reason;
  (void)reason;
  if ((reason = setup_802154()))
    printf("the reproducer may not work as expected: 802154 injection setup "
           "failed: %s\n",
           reason);
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}