On Wed, 18 Dec 2024 13:27:39 +0100 Petr Mladek <pmladek@xxxxxxxx> wrote: > But this would happen only when the last reference is released > when formatting the string which is kind of corner case. > > As I said, I think that taking lock in vsprintf() formats is highly > unexpected and thus a way to hell. > > What do others think, please? We already can take locks from printk formats. https://lore.kernel.org/all/20241120102602.3e17f2d5@xxxxxxxxxxxxxxxxxx/ At least when SELinux is enabled. But that may be an SELinux issue and not a printk one. -- Steve
