From: Li Qiang <address@hidden>

The 'fs.xattr.value' field in V9fsFidState object doesn't consider the
situation that this field has been allocated previously. Every time, it
will be allocated directly. This leads a host memory leak issue. This
patch fix this.

-- 
1.8.3.1
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index 75ba5f1..a4c7109 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -3269,6 +3269,7 @@ static void v9fs_xattrcreate(void *opaque)
     xattr_fidp->fs.xattr.flags = flags;
     v9fs_string_init(&xattr_fidp->fs.xattr.name);
     v9fs_string_copy(&xattr_fidp->fs.xattr.name, &name);
+    g_free(xattr_fidp->fs.xattr.value);
     xattr_fidp->fs.xattr.value = g_malloc(size);
     err = offset;
     put_fid(pdu, file_fidp);