linux-kernel - BUG null dereference in driver ./drivers/net/hamradio/yam.c

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Date:	Mon, 21 Dec 2009 20:13:01 +0000
From:	Alexander Strakh <strakh@...ras.ru>
To:	Frederic Rible <frible@...ser.fr>,
	Thomas Sailer <sailer@....ee.ethz.ch>,
	"Jean-Paul Roubelat" <jpr@...bb.org>, linux-hams@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: BUG null dereference in driver ./drivers/net/hamradio/yam.c

        KERNEL_VERSION: 2.6.32
        SUBJECT: null derefernce in function __init yam_init_driver
        SUBSCRIBE:
        In driver drivers/net/hamradio/yam.c in function __init 
yam_init_driver:

1. If in line 1153 dev = NULL then we goto line 1154
2. In line 1155 we have null dereference of "dev->name"

1153                 if (!dev) {
1154                         printk(KERN_ERR "yam: cannot allocate net device 
%s\n",
1155                                dev->name);
1156                         err = -ENOMEM;
1157                         goto error;
1158                 }

Found by Linux Device Drivers Verification Project (Svace Detector)
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