diff --git a/unix/linux/types.go b/unix/linux/types.go
index f3c2396..eb0fd3c 100644
--- a/unix/linux/types.go
+++ b/unix/linux/types.go
@@ -111,6 +111,7 @@
 #include <linux/netfilter.h>
 #include <linux/netlink.h>
 #include <linux/nexthop.h>
+#include <linux/openat2.h>
 #include <linux/perf_event.h>
 #include <linux/random.h>
 #include <linux/rtc.h>
@@ -874,6 +875,18 @@
 	AT_EACCESS = C.AT_EACCESS
 )
 
+type OpenHow C.struct_open_how
+
+const SizeofOpenHow = C.sizeof_struct_open_how
+
+const (
+	RESOLVE_BENEATH       = C.RESOLVE_BENEATH
+	RESOLVE_IN_ROOT       = C.RESOLVE_IN_ROOT
+	RESOLVE_NO_MAGICLINKS = C.RESOLVE_NO_MAGICLINKS
+	RESOLVE_NO_SYMLINKS   = C.RESOLVE_NO_SYMLINKS
+	RESOLVE_NO_XDEV       = C.RESOLVE_NO_XDEV
+)
+
 type PollFd C.struct_pollfd
 
 const (
diff --git a/unix/syscall_linux.go b/unix/syscall_linux.go
index 5b3af2e..ec7e4c4 100644
--- a/unix/syscall_linux.go
+++ b/unix/syscall_linux.go
@@ -136,6 +136,12 @@
 	return openat(dirfd, path, flags|O_LARGEFILE, mode)
 }
 
+//sys	openat2(dirfd int, path string, open_how *OpenHow, size int) (fd int, err error)
+
+func Openat2(dirfd int, path string, how *OpenHow) (fd int, err error) {
+	return openat2(dirfd, path, how, SizeofOpenHow)
+}
+
 //sys	ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error)
 
 func Ppoll(fds []PollFd, timeout *Timespec, sigmask *Sigset_t) (n int, err error) {
diff --git a/unix/syscall_linux_test.go b/unix/syscall_linux_test.go
index 01f29ca..76555d4 100644
--- a/unix/syscall_linux_test.go
+++ b/unix/syscall_linux_test.go
@@ -13,6 +13,7 @@
 	"fmt"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"runtime"
 	"runtime/debug"
 	"strconv"
@@ -730,3 +731,62 @@
 		count += *(*uint64)(unsafe.Pointer(&buffer))
 	}
 }
+
+func TestOpenat2(t *testing.T) {
+	how := &unix.OpenHow{
+		Flags: unix.O_RDONLY,
+	}
+	fd, err := unix.Openat2(unix.AT_FDCWD, ".", how)
+	if err != nil {
+		if err == unix.ENOSYS || err == unix.EPERM {
+			t.Skipf("openat2: %v (old kernel? need Linux >= 5.6)", err)
+		}
+		t.Fatalf("openat2: %v", err)
+	}
+	if err := unix.Close(fd); err != nil {
+		t.Fatalf("close: %v", err)
+	}
+
+	// prepare
+	tempDir, err := ioutil.TempDir("", t.Name())
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tempDir)
+
+	subdir := filepath.Join(tempDir, "dir")
+	if err := os.Mkdir(subdir, 0755); err != nil {
+		t.Fatal(err)
+	}
+	symlink := filepath.Join(subdir, "symlink")
+	if err := os.Symlink("../", symlink); err != nil {
+		t.Fatal(err)
+	}
+
+	dirfd, err := unix.Open(subdir, unix.O_RDONLY, 0)
+	if err != nil {
+		t.Fatalf("open(%q): %v", subdir, err)
+	}
+	defer unix.Close(dirfd)
+
+	// openat2 with no extra flags -- should succeed
+	fd, err = unix.Openat2(dirfd, "symlink", how)
+	if err != nil {
+		t.Errorf("Openat2 should succeed, got %v", err)
+	}
+	if err := unix.Close(fd); err != nil {
+		t.Fatalf("close: %v", err)
+	}
+
+	// open with RESOLVE_BENEATH, should result in EXDEV
+	how.Resolve = unix.RESOLVE_BENEATH
+	fd, err = unix.Openat2(dirfd, "symlink", how)
+	if err == nil {
+		if err := unix.Close(fd); err != nil {
+			t.Fatalf("close: %v", err)
+		}
+	}
+	if err != unix.EXDEV {
+		t.Errorf("Openat2 should fail with EXDEV, got %v", err)
+	}
+}
diff --git a/unix/zsyscall_linux.go b/unix/zsyscall_linux.go
index 4eec7a7..2fbbbe5 100644
--- a/unix/zsyscall_linux.go
+++ b/unix/zsyscall_linux.go
@@ -83,6 +83,22 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func openat2(dirfd int, path string, open_how *OpenHow, size int) (fd int, err error) {
+	var _p0 *byte
+	_p0, err = BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	r0, _, e1 := Syscall6(SYS_OPENAT2, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(open_how)), uintptr(size), 0, 0)
+	fd = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error) {
 	r0, _, e1 := Syscall6(SYS_PPOLL, uintptr(unsafe.Pointer(fds)), uintptr(nfds), uintptr(unsafe.Pointer(timeout)), uintptr(unsafe.Pointer(sigmask)), 0, 0)
 	n = int(r0)
diff --git a/unix/ztypes_linux.go b/unix/ztypes_linux.go
index 1879d57..68e4974 100644
--- a/unix/ztypes_linux.go
+++ b/unix/ztypes_linux.go
@@ -752,6 +752,22 @@
 	AT_EACCESS = 0x200
 )
 
+type OpenHow struct {
+	Flags   uint64
+	Mode    uint64
+	Resolve uint64
+}
+
+const SizeofOpenHow = 0x18
+
+const (
+	RESOLVE_BENEATH       = 0x8
+	RESOLVE_IN_ROOT       = 0x10
+	RESOLVE_NO_MAGICLINKS = 0x2
+	RESOLVE_NO_SYMLINKS   = 0x4
+	RESOLVE_NO_XDEV       = 0x1
+)
+
 type PollFd struct {
 	Fd      int32
 	Events  int16