From: Eric Dumazet <eric.dumazet@gmail.com>
To: Greg KH <greg@kroah.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH] kobject: Fix kobject_set_name_vargs()
Date: Thu, 11 Mar 2010 21:50:52 +0100 [thread overview]
Message-ID: <1268340652.2845.10.camel@edumazet-laptop> (raw)
In case of kvasprintf() failure, we can leak old kobject name.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
---
diff --git a/lib/kobject.c b/lib/kobject.c
index 8115eb1..1247c57 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -222,8 +222,10 @@ int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
return 0;
kobj->name = kvasprintf(GFP_KERNEL, fmt, vargs);
- if (!kobj->name)
+ if (!kobj->name) {
+ kobj->name = old_name;
return -ENOMEM;
+ }
/* ewww... some of these buggers have '/' in the name ... */
while ((s = strchr(kobj->name, '/')))
next reply other threads:[~2010-03-11 20:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-11 20:50 Eric Dumazet [this message]
2010-03-12 4:15 ` [PATCH] kobject: Fix kobject_set_name_vargs() Greg KH
2010-03-12 4:39 ` Kay Sievers
2010-03-12 4:46 ` Kay Sievers
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