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Date: Thu, 5 Apr 2001 13:56:08 -0700
From: Andy Chou <acc@CS.Stanford.EDU>
To: Andy Chou <acc@CS.Stanford.EDU>
Cc: linux-kernel@vger.kernel.org, mc@CS.Stanford.EDU
Subject: Re: [CHECKER] 15 potential pointer dereference errors in 2.4.3
Message-ID: <20010405135608.A748@Xenon.Stanford.EDU>
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In-Reply-To: <20010405015251.A20904@Xenon.Stanford.EDU>; from acc@CS.Stanford.EDU on Thu, Apr 05, 2001 at 01:52:51AM -0700
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Here's one more potential bug for 2.4.3.

-Andy

[BUG]
/u2/acc/oses/linux/2.4.3/drivers/isdn/hysdn/hysdn_net.c:309:hysdn_net_create: ERROR:NULL:302:309: Using
NULL ptr "dev" illegally! set by 'kmalloc_Rsmp_93d4cfe6':302

Start --->
	if ((dev = kmalloc(sizeof(struct net_local), GFP_KERNEL)) ==
NULL) {
		printk(KERN_WARNING "HYSDN: unable to allocate mem\n");
		if (card->debug_flags & LOG_NET_INIT)
			return (-ENOMEM);
	}
	memset(dev, 0, sizeof(struct net_local));	/* clean the structure
*/

Error --->
	spin_lock_init(&((struct net_local *) dev)->lock);

-
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