1 files changed, 12 insertions, 3 deletions

diff --git a/vendor/golang.org/x/sys/unix/xattr_bsd.go b/vendor/golang.org/x/sys/unix/xattr_bsd.go
index 9304993..30c1d71 100644
--- a/vendor/golang.org/x/sys/unix/xattr_bsd.go
+++ b/vendor/golang.org/x/sys/unix/xattr_bsd.go
@@ -81,7 +81,10 @@ func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) {
 // flags are unused on FreeBSD
 
 func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) {
-        d := unsafe.Pointer(&data[0])
+        var d unsafe.Pointer
+        if len(data) > 0 {
+                d = unsafe.Pointer(&data[0])
+        }
         datasiz := len(data)
 
         nsid, a, err := xattrnamespace(attr)
@@ -94,7 +97,10 @@ func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) {
 }
 
 func Setxattr(file string, attr string, data []byte, flags int) (err error) {
-        d := unsafe.Pointer(&data[0])
+        var d unsafe.Pointer
+        if len(data) > 0 {
+                d = unsafe.Pointer(&data[0])
+        }
         datasiz := len(data)
 
         nsid, a, err := xattrnamespace(attr)
@@ -107,7 +113,10 @@ func Setxattr(file string, attr string, data []byte, flags int) (err error) {
 }
 
 func Lsetxattr(link string, attr string, data []byte, flags int) (err error) {
-        d := unsafe.Pointer(&data[0])
+        var d unsafe.Pointer
+        if len(data) > 0 {
+                d = unsafe.Pointer(&data[0])
+        }
         datasiz := len(data)
 
         nsid, a, err := xattrnamespace(attr)