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-rw-r--r--security/selinux/ss/sidtab.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c
index a308ce1e6a13..f511ffccb131 100644
--- a/security/selinux/ss/sidtab.c
+++ b/security/selinux/ss/sidtab.c
@@ -518,19 +518,13 @@ void sidtab_sid2str_put(struct sidtab *s, struct sidtab_entry *entry,
const char *str, u32 str_len)
{
struct sidtab_str_cache *cache, *victim = NULL;
+ unsigned long flags;
/* do not cache invalid contexts */
if (entry->context.len)
return;
- /*
- * Skip the put operation when in non-task context to avoid the need
- * to disable interrupts while holding s->cache_lock.
- */
- if (!in_task())
- return;
-
- spin_lock(&s->cache_lock);
+ spin_lock_irqsave(&s->cache_lock, flags);
cache = rcu_dereference_protected(entry->cache,
lockdep_is_held(&s->cache_lock));
@@ -561,7 +555,7 @@ void sidtab_sid2str_put(struct sidtab *s, struct sidtab_entry *entry,
rcu_assign_pointer(entry->cache, cache);
out_unlock:
- spin_unlock(&s->cache_lock);
+ spin_unlock_irqrestore(&s->cache_lock, flags);
kfree_rcu(victim, rcu_member);
}