diff --git a/sys/compat/linuxkpi/common/src/linux_slab.c b/sys/compat/linuxkpi/common/src/linux_slab.c
--- a/sys/compat/linuxkpi/common/src/linux_slab.c
+++ b/sys/compat/linuxkpi/common/src/linux_slab.c
@@ -193,6 +193,9 @@
 void
 linux_kmem_cache_destroy(struct linux_kmem_cache *c)
 {
+	if (c == NULL)
+		return;
+
 	if (unlikely(c->cache_flags & SLAB_TYPESAFE_BY_RCU)) {
 		/* make sure all free callbacks have been called */
 		rcu_barrier();