On Thu, Nov 10, 2022 at 11:09:27AM +0000, David Howells wrote: > When NFS superblocks are created by automounting, their LSM parameters > aren't set in the fs_context struct prior to sget_fc() being called, > leading to failure to match existing superblocks. > > Fix this by adding a new LSM hook to load fc->security for submount > creation when alloc_fs_context() is creating the fs_context for it. FWIW, it feels like security_sb_mnt_opts_compat() would be a saner place for that. It would need to get struct dentry *reference passed to it, but that should be it...
