Re: [PATCH v4 09/11] smack: namespace groundwork

From: Hillf Danton
Date: Thu Oct 15 2015 - 03:46:07 EST


>
> +static inline void smack_userns_free(struct user_namespace *ns)
> +{
> + struct smack_ns *snsp = ns->security;
> + struct smack_known *skp;
> + struct smack_known_ns *sknp, *n;
> +
> + list_for_each_entry_safe(sknp, n, &snsp->smk_mapped, smk_list_ns) {
> + skp = sknp->smk_unmapped;
> +
> + mutex_lock(&skp->smk_mapped_lock);
> + list_del_rcu(&sknp->smk_list_known);
> + if (sknp->smk_allocated)
> + kfree(sknp->smk_mapped);
> + kfree(sknp);

sknp is released,
> + mutex_unlock(&skp->smk_mapped_lock);
> +
> + list_del(&sknp->smk_list_ns);

but it is used again! typo?
> + }
> +
> + kfree(snsp);
> +}
> +
>


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