syzkaller-repros/linux/a85a088887c207571b990ac7b4c55ee20fc35d6b.c

// WARNING: kmalloc bug in xdp_umem_create
// https://syzkaller.appspot.com/bug?id=a85a088887c207571b990ac7b4c55ee20fc35d6b
// status:fixed
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <stdint.h>
#include <string.h>
#include <sys/syscall.h>
#include <unistd.h>

uint64_t r[1] = {0xffffffffffffffff};
void loop()
{
  long res = 0;
  res = syscall(__NR_socket, 0x2c, 3, 0);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000040 = 0x20000000;
  *(uint64_t*)0x20000048 = 0x200002000;
  *(uint32_t*)0x20000050 = 0x800;
  *(uint32_t*)0x20000054 = 2;
  syscall(__NR_setsockopt, r[0], 0x11b, 4, 0x20000040, 0x18);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  loop();
  return 0;
}