diff options
| -rw-r--r-- | pkg/sentry/fs/inode_overlay.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pkg/sentry/fs/inode_overlay.go b/pkg/sentry/fs/inode_overlay.go index 246b97161..5a388dad1 100644 --- a/pkg/sentry/fs/inode_overlay.go +++ b/pkg/sentry/fs/inode_overlay.go @@ -15,6 +15,7 @@ package fs import ( + "fmt" "strings" "gvisor.dev/gvisor/pkg/abi/linux" @@ -207,6 +208,11 @@ func overlayLookup(ctx context.Context, parent *overlayEntry, inode *Inode, name } func overlayCreate(ctx context.Context, o *overlayEntry, parent *Dirent, name string, flags FileFlags, perm FilePermissions) (*File, error) { + // Sanity check. + if parent.Inode.overlay == nil { + panic(fmt.Sprintf("overlayCreate called with non-overlay parent inode (parent InodeOperations type is %T)", parent.Inode.InodeOperations)) + } + // Dirent.Create takes renameMu if the Inode is an overlay Inode. if err := copyUpLockedForRename(ctx, parent); err != nil { return nil, err |