Revision e7c243c925f6d9dcb898504ff24d6650b5cbb3b1 authored by Evgeniy Polyakov on 25 August 2007, 06:36:29 UTC, committed by David S. Miller on 27 August 2007, 01:35:47 UTC
I tried to preserve bridging code as it was before, but logic is quite
strange - I think we should free skb on error, since it is already
unshared and thus will just leak.

Herbert Xu states:

> +	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
> +		goto out;

If this happens it'll be a double-free on skb since we'll
return NF_DROP which makes the caller free it too.

We could return NF_STOLEN to prevent that but I'm not sure
whether that's correct netfilter semantics.  Patrick, could
you please make a call on this?

Patrick McHardy states:

NF_STOLEN should work fine here.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 7c8347a
Raw File
wext.h
#ifndef __NET_WEXT_H
#define __NET_WEXT_H

/*
 * wireless extensions interface to the core code
 */

#ifdef CONFIG_WIRELESS_EXT
extern int wext_proc_init(void);
extern int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
			     void __user *arg);
#else
static inline int wext_proc_init(void)
{
	return 0;
}
static inline int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
				    void __user *arg)
{
	return -EINVAL;
}
#endif

#endif /* __NET_WEXT_H */
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