// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

static long syz_open_procfs(volatile long a0, volatile long a1)
{
  char buf[128];
  memset(buf, 0, sizeof(buf));
  if (a0 == 0) {
    snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1);
  } else if (a0 == -1) {
    snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1);
  } else {
    snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1);
  }
  int fd = open(buf, O_RDWR);
  if (fd == -1)
    fd = open(buf, O_RDONLY);
  return fd;
}

static inline long write_sysctl(const char* path, long value)
{
  int fd = open(path, O_WRONLY);
  if (fd < 0)
    return -errno;
  char buf[64];
  int n = snprintf(buf, sizeof(buf), "%ld", value);
  if (n < 0) {
    int e = errno;
    close(fd);
    return -e;
  }
  ssize_t w = write(fd, buf, (size_t)n);
  if (w != n) {
    int e = errno;
    close(fd);
    return -e;
  }
  close(fd);
  return 0;
}

static long syz_proc_sys_generated_322(
    volatile long net_ipv4_neigh_br_750d3ac76d5c_proxy_qlen,
    volatile long kernel_printk_ratelimit,
    volatile long net_ipv4_tcp_max_orphans,
    volatile long net_ipv4_conf_veth60b1cb7_promote_secondaries,
    volatile long net_ipv6_conf_veth233afe3_temp_valid_lft)
{
  (void)write_sysctl("/proc/sys/net/ipv4/neigh/br-750d3ac76d5c/proxy_qlen",
                     (long)net_ipv4_neigh_br_750d3ac76d5c_proxy_qlen);
  (void)write_sysctl("/proc/sys/kernel/printk_ratelimit",
                     (long)kernel_printk_ratelimit);
  (void)write_sysctl("/proc/sys/net/ipv4/tcp_max_orphans",
                     (long)net_ipv4_tcp_max_orphans);
  (void)write_sysctl("/proc/sys/net/ipv4/conf/veth60b1cb7/promote_secondaries",
                     (long)net_ipv4_conf_veth60b1cb7_promote_secondaries);
  (void)write_sysctl("/proc/sys/net/ipv6/conf/veth233afe3/temp_valid_lft",
                     (long)net_ipv6_conf_veth233afe3_temp_valid_lft);
  return 0;
}

uint64_t r[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-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=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  syz_proc_sys_generated_322(
      /*net_ipv4_neigh_br_750d3ac76d5c_proxy_qlen=*/0x10c,
      /*kernel_printk_ratelimit=*/-1, /*net_ipv4_tcp_max_orphans=*/0x1fe6c2,
      /*net_ipv4_conf_veth60b1cb7_promote_secondaries=*/0,
      /*net_ipv6_conf_veth233afe3_temp_valid_lft=*/0x4145ee);
  memcpy((void*)0x200000000100, "map_files\000", 10);
  res = -1;
  res = syz_open_procfs(/*pid=*/0, /*file=*/0x200000000100);
  if (res != -1)
    r[0] = res;
  syscall(__NR_fcntl, /*fd=*/r[0], /*cmd=*/0x402ul,
          /*typ=DN_CREATE|DN_MODIFY|DN_ACCESS|DN_MULTISHOT*/ 0x80000007ul);
  return 0;
}