Fix for "kmem -[sS]" options on Linux 4.14 and later kernels built with CONFIG_SLAB_FREELIST_HARDENED enabled. Without the patch, there will error messages of the type "kmem: <cache name> slab: <address> invalid freepointer: <obfuscated address>" for caches created during SLUB bootstrap, as they are likely to have s->random == 0. Signed-off-by: Hari Bathini <hbathini(a)linux.ibm.com&gt; --- memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/memory.c b/memory.c index ccc2944..c2433eb 100644 --- a/memory.c +++ b/memory.c @@ -19244,7 +19244,7 @@ count_free_objects(struct meminfo *si, ulong freelist) static ulong freelist_ptr(struct meminfo *si, ulong ptr, ulong ptr_addr) { - if (si->random) + if (VALID_MEMBER(kmem_cache_random)) /* CONFIG_SLAB_FREELIST_HARDENED */ return (ptr ^ si->random ^ ptr_addr); else