From 8df273c8566412f09860dd16a4fe6fd2bf4c1a3d Mon Sep 17 00:00:00 2001
From: anupritaisno1 <www.anuprita804@gmail.com>
Date: Tue, 7 Dec 2021 05:23:48 +0530
Subject: [PATCH] bug on kmem_cache_free with the wrong cache

Signed-off-by: Daniel Micay <danielmicay@gmail.com>
Signed-off-by: anupritaisno1 <www.anuprita804@gmail.com>
---
 mm/slab.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mm/slab.h b/mm/slab.h
index 32ccbb32a..ad457ec12 100755
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -510,10 +510,14 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
 		return s;
 
 	cachep = virt_to_cache(x);
+#ifdef CONFIG_BUG_ON_DATA_CORRUPTION
+	BUG_ON(cachep && cachep != s);
+#else
 	if (WARN(cachep && cachep != s,
 		  "%s: Wrong slab cache. %s but object is from %s\n",
 		  __func__, s->name, cachep->name))
 		print_tracking(cachep, x);
+#endif
 	return cachep;
 }