always call inode_change_ok early in ->setattr
Make sure we call inode_change_ok before doing any changes in ->setattr,
and make sure to call it even if our fs wants to ignore normal UNIX
permissions, but use the ATTR_FORCE to skip those.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 3cdc5f7..43a9b37 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1270,11 +1270,12 @@
if (!fuse_allow_task(fc, current))
return -EACCES;
- if (fc->flags & FUSE_DEFAULT_PERMISSIONS) {
- err = inode_change_ok(inode, attr);
- if (err)
- return err;
- }
+ if (!(fc->flags & FUSE_DEFAULT_PERMISSIONS))
+ attr->ia_valid |= ATTR_FORCE;
+
+ err = inode_change_ok(inode, attr);
+ if (err)
+ return err;
if ((attr->ia_valid & ATTR_OPEN) && fc->atomic_o_trunc)
return 0;