From: Dan Carpenter <error27@gmail.com>
To: netdev@vger.kernel.org
Cc: Florian Fainelli <florian@openwrt.org>,
"David S. Miller" <davem@davemloft.net>,
Ralf Baechle <ralf@linux-mips.org>,
Jiri Pirko <jpirko@redhat.com>,
Stefan Weil <weil@mail.berlios.de>,
kernel-janitors@vger.kernel.org
Subject: [patch] cpmac: use after free
Date: Wed, 3 Mar 2010 11:46:10 +0300 [thread overview]
Message-ID: <20100303084610.GH5086@bicker> (raw)
The original code dereferenced "cpmac_mii" after calling
"mdiobus_free(cpmac_mii);"
Signed-off-by: Dan Carpenter <error27@gmail.com>
---
Found by a static checker and not tested. Sorry. :/
diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c
index b85c81f..9d48942 100644
--- a/drivers/net/cpmac.c
+++ b/drivers/net/cpmac.c
@@ -1290,8 +1290,8 @@ void __devexit cpmac_exit(void)
{
platform_driver_unregister(&cpmac_driver);
mdiobus_unregister(cpmac_mii);
- mdiobus_free(cpmac_mii);
iounmap(cpmac_mii->priv);
+ mdiobus_free(cpmac_mii);
}
module_init(cpmac_init);
next reply other threads:[~2010-03-03 8:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-03 8:46 Dan Carpenter [this message]
2010-03-03 8:59 ` [patch] cpmac: use after free Jiri Pirko
2010-03-03 9:07 ` David Miller
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