Message ID | 20201229231446.l1zpffxO9%akpm@linux-foundation.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | [01/16] selftests/vm: fix building protection keys test | expand |
--- a/mm/kasan/generic.c~kasan-fix-null-pointer-dereference-in-kasan_record_aux_stack +++ a/mm/kasan/generic.c @@ -337,6 +337,8 @@ void kasan_record_aux_stack(void *addr) cache = page->slab_cache; object = nearest_obj(cache, page, addr); alloc_meta = kasan_get_alloc_meta(cache, object); + if (!alloc_meta) + return; alloc_meta->aux_stack[1] = alloc_meta->aux_stack[0]; alloc_meta->aux_stack[0] = kasan_save_stack(GFP_NOWAIT);