Re: namespaces?: bug at mm/slub.c:2750

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Serge E. Hallyn <serue@xxxxxxxxxx> wrote:

> It's called under uidhash_lock spinlock so should be ok, but in
> principle you're right so it's probably a good idea.

The lock is nothing to do with it.  put_user_ns() may call kfree() on the
user_namespace, but the user_struct given to uid_hash_remove() may still be
attached to it.

David
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