// https://syzkaller.appspot.com/bug?id=78e52f7409c9dde3c0ce30ca9fb6a7c7e3ef85e6
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <net/if.h>
#include <netinet/in.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#include <sys/types.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
#ifndef __NR_sendmsg
#define __NR_sendmsg 211
#endif
#ifndef __NR_socket
#define __NR_socket 198
#endif

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 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_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 long syz_genetlink_get_family_id(volatile long name,
                                        volatile long sock_arg)
{
  int fd = sock_arg;
  if (fd < 0) {
    fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
    if (fd == -1) {
      return -1;
    }
  }
  struct nlmsg nlmsg_tmp;
  int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, false);
  if ((int)sock_arg < 0)
    close(fd);
  if (ret < 0) {
    return -1;
  }
  return ret;
}

uint64_t r[9] = {0xffffffffffffffff,
                 0xffffffffffffffff,
                 0xffffffffffffffff,
                 0x0,
                 0x0,
                 0xffffffffffffffff,
                 0xffffffffffffffff,
                 0x0,
                 0x0};

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  intptr_t res = 0;
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20006440 = 0;
  *(uint32_t*)0x20006448 = 0;
  *(uint64_t*)0x20006450 = 0x200063c0;
  *(uint64_t*)0x200063c0 = 0x200004c0;
  memcpy((void*)0x200004c0,
         "\x38\x00\x00\x00\x10\x00\x01\x00\x00\x00\x60\x00\x00\x00\x00\x00\x08"
         "\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00",
         28);
  *(uint32_t*)0x200004dc = 0;
  memcpy(
      (void*)0x200004e0,
      "\x14\x00\x1b\x00\x00\x00\x00\x00\x00\x00\x00\x21\x00\x00\x97\x00\x00\x00"
      "\x59\x64\x86\x3b\xe8\x00\x00\xb9\xfb\x4b\x85\xd6\x55\x32\x22\xc1\xa1\x06"
      "\x1f\x77\x9c\xb2\x38\xee\xa4\xe8\xda\x7a\x4a\xd1\x3e\x09\x4d\x53\x39\x1b"
      "\x10\x04\x4d\x9a\x5b\xda\xd5\x5f\x28\x47\x01\xe7\xbc\x74\x35\xa9\x6f\x06"
      "\xcf\xbc\x12\xa1\xf9\x27\xcd\x41\xa5\x78\x27\xd5\x26\x18\xdc\xa4\x80\x98"
      "\x81\xb0\x27\xfd\x55\x3f\x18\xb0\x5e\xcb\xb6\xad\x4e\x1a\xd0\x0f\x73\x52"
      "\xa8\x13\x0d\xb3\x7d\x78\xdd\x2b\x6d\x2e\x5a\x8c\x17\xa4\x54\x10",
      124);
  *(uint64_t*)0x200063c8 = 0x38;
  *(uint64_t*)0x20006458 = 1;
  *(uint64_t*)0x20006460 = 0;
  *(uint64_t*)0x20006468 = 0;
  *(uint32_t*)0x20006470 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x20006440ul, /*f=*/0ul);
  res = syscall(__NR_socket, /*domain=*/0xaul, /*type=*/3ul, /*proto=*/0x3a);
  if (res != -1)
    r[1] = res;
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10);
  if (res != -1)
    r[2] = res;
  memcpy((void*)0x20000080, "nl80211\000", 8);
  res = -1;
  res = syz_genetlink_get_family_id(/*name=*/0x20000080, /*fd=*/-1);
  if (res != -1)
    r[3] = res;
  memcpy((void*)0x20000000, "wlan1\000\000\000\000\000\000\000\000\000\000\000",
         16);
  res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x8933, /*arg=*/0x20000000ul);
  if (res != -1)
    r[4] = *(uint32_t*)0x20000010;
  *(uint64_t*)0x20000100 = 0;
  *(uint32_t*)0x20000108 = 0;
  *(uint64_t*)0x20000110 = 0x20000140;
  *(uint64_t*)0x20000140 = 0x200002c0;
  *(uint32_t*)0x200002c0 = 0x24;
  *(uint16_t*)0x200002c4 = r[3];
  *(uint16_t*)0x200002c6 = 5;
  *(uint32_t*)0x200002c8 = 0;
  *(uint32_t*)0x200002cc = 0;
  *(uint8_t*)0x200002d0 = 6;
  *(uint8_t*)0x200002d1 = 0;
  *(uint16_t*)0x200002d2 = 0;
  *(uint16_t*)0x200002d4 = 8;
  *(uint16_t*)0x200002d6 = 3;
  *(uint32_t*)0x200002d8 = r[4];
  *(uint16_t*)0x200002dc = 8;
  *(uint16_t*)0x200002de = 5;
  *(uint32_t*)0x200002e0 = 0xb;
  *(uint64_t*)0x20000148 = 0x24;
  *(uint64_t*)0x20000118 = 1;
  *(uint64_t*)0x20000120 = 0;
  *(uint64_t*)0x20000128 = 0;
  *(uint32_t*)0x20000130 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[2], /*msg=*/0x20000100ul, /*f=*/0ul);
  res = syscall(__NR_socket, /*domain=*/0xaul, /*type=*/3ul, /*proto=*/0x3a);
  if (res != -1)
    r[5] = res;
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10);
  if (res != -1)
    r[6] = res;
  memcpy((void*)0x20000080, "nl80211\000", 8);
  res = -1;
  res = syz_genetlink_get_family_id(/*name=*/0x20000080, /*fd=*/-1);
  if (res != -1)
    r[7] = res;
  memcpy((void*)0x20000000, "wlan1\000\000\000\000\000\000\000\000\000\000\000",
         16);
  res = syscall(__NR_ioctl, /*fd=*/r[5], /*cmd=*/0x8933, /*arg=*/0x20000000ul);
  if (res != -1)
    r[8] = *(uint32_t*)0x20000010;
  *(uint64_t*)0x20000100 = 0;
  *(uint32_t*)0x20000108 = 3;
  *(uint64_t*)0x20000110 = 0x20000140;
  *(uint64_t*)0x20000140 = 0x200002c0;
  *(uint32_t*)0x200002c0 = 0x24;
  *(uint16_t*)0x200002c4 = r[7];
  *(uint16_t*)0x200002c6 = 5;
  *(uint32_t*)0x200002c8 = 0;
  *(uint32_t*)0x200002cc = 0;
  *(uint8_t*)0x200002d0 = 6;
  *(uint8_t*)0x200002d1 = 0;
  *(uint16_t*)0x200002d2 = 0;
  *(uint16_t*)0x200002d4 = 8;
  *(uint16_t*)0x200002d6 = 3;
  *(uint32_t*)0x200002d8 = r[8];
  *(uint16_t*)0x200002dc = 8;
  *(uint16_t*)0x200002de = 5;
  *(uint32_t*)0x200002e0 = 9;
  *(uint64_t*)0x20000148 = 0x24;
  *(uint64_t*)0x20000118 = 1;
  *(uint64_t*)0x20000120 = 0;
  *(uint64_t*)0x20000128 = 0;
  *(uint32_t*)0x20000130 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[6], /*msg=*/0x20000100ul, /*f=*/0ul);
  return 0;
}