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-rw-r--r--pkg/sentry/fsimpl/kernfs/inode_impl_util.go5
1 files changed, 3 insertions, 2 deletions
diff --git a/pkg/sentry/fsimpl/kernfs/inode_impl_util.go b/pkg/sentry/fsimpl/kernfs/inode_impl_util.go
index eac578f25..8139bff76 100644
--- a/pkg/sentry/fsimpl/kernfs/inode_impl_util.go
+++ b/pkg/sentry/fsimpl/kernfs/inode_impl_util.go
@@ -371,6 +371,8 @@ type OrderedChildrenOptions struct {
// OrderedChildren may modify the tracked children. This applies to
// operations related to rename, unlink and rmdir. If an OrderedChildren is
// not writable, these operations all fail with EPERM.
+ //
+ // Note that writable users must implement the sticky bit (I_SVTX).
Writable bool
}
@@ -556,7 +558,6 @@ func (o *OrderedChildren) Unlink(ctx context.Context, name string, child Inode)
return err
}
- // TODO(gvisor.dev/issue/3027): Check sticky bit before removing.
o.removeLocked(name)
return nil
}
@@ -603,8 +604,8 @@ func (o *OrderedChildren) Rename(ctx context.Context, oldname, newname string, c
if err := o.checkExistingLocked(oldname, child); err != nil {
return err
}
+ o.removeLocked(oldname)
- // TODO(gvisor.dev/issue/3027): Check sticky bit before removing.
dst.replaceChildLocked(ctx, newname, child)
return nil
}