linux-kernel - Taint kernel when we detect a corrupted slab.

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Message-ID: <20120918150543.GA14718@redhat.com>
Date:	Tue, 18 Sep 2012 11:05:44 -0400
From:	Dave Jones <davej@...hat.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Cc:	cl@...ux-foundation.org
Subject: Taint kernel when we detect a corrupted slab.

It doesn't seem worth adding a new taint flag for this, so just re-use
the one from 'bad page'

Signed-off-by: Dave Jones <davej@...hat.com>

diff --git a/mm/slub.c b/mm/slub.c
index 2fdd96f..0c5009d 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -568,6 +568,8 @@ static void slab_bug(struct kmem_cache *s, char *fmt, ...)
 	printk(KERN_ERR "BUG %s (%s): %s\n", s->name, print_tainted(), buf);
 	printk(KERN_ERR "----------------------------------------"
 			"-------------------------------------\n\n");
+
+	add_taint(TAINT_BAD_PAGE);
 }
 
 static void slab_fix(struct kmem_cache *s, char *fmt, ...)
--
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