[PATCH] module: log OOT_MODULE tainting

[Jiri Kosina]

Follow what we do with other taints and output a message into kernel ring 
buffer once tainting a kernel because out-of-tree module is being loaded.

Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>

diff --git a/kernel/module.c b/kernel/module.c
index b02d633..3f52b3e 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2478,8 +2478,11 @@ static int check_modinfo(struct module *mod, struct load_info *info)
 		return -ENOEXEC;
 	}
 
-	if (!get_modinfo(info, "intree"))
+	if (!get_modinfo(info, "intree")) {
 		add_taint_module(mod, TAINT_OOT_MODULE);
+		printk(KERN_WARNING "%s: out of tree module taints kernel\n",
+				mod->name);
+	}
 
 	if (get_modinfo(info, "staging")) {
 		add_taint_module(mod, TAINT_CRAP);
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