netdev - Re: [net 4/4] i40e: fix call of ndo_dflt_bridge

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 27 Oct 2016 15:13:39 -0700
From:   Greg <gvrose8192@...il.com>
To:     Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Cc:     davem@...emloft.net, Huaibin Wang <huaibin.wang@...nd.com>,
        netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
        jogreene@...hat.com, guru.anbalagane@...cle.com,
        Carolyn Wyborny <carolyn.wyborny@...el.com>,
        Nicolas Dichtel <nicolas.dichtel@...nd.com>
Subject: Re: [net 4/4] i40e: fix call of ndo_dflt_bridge_getlink()

On Thu, 2016-10-27 at 14:27 -0700, Jeff Kirsher wrote:
> From: Huaibin Wang <huaibin.wang@...nd.com>
> 
> Order of arguments is wrong.
> The wrong code has been introduced by commit 7d4f8d871ab1, but is compiled
> only since commit 9df70b66418e.
> 
> Note that this may break netlink dumps.
> 
> Fixes: 9df70b66418e ("i40e: Remove incorrect #ifdef's")
> Fixes: 7d4f8d871ab1 ("switchdev; add VLAN support for port's bridge_getlink")
> CC: Carolyn Wyborny <carolyn.wyborny@...el.com>
> Signed-off-by: Huaibin Wang <huaibin.wang@...nd.com>
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
> Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
> index 6abc130..31c97e3 100644
> --- a/drivers/net/ethernet/intel/i40e/i40e_main.c
> +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
> @@ -9034,7 +9034,7 @@ static int i40e_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
>  		return 0;
>  
>  	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, veb->bridge_mode,
> -				       nlflags, 0, 0, filter_mask, NULL);
> +				       0, 0, nlflags, filter_mask, NULL);

Yikes!  And NDO function with 10 parameters?  No wonder they get mixed
up.

- Greg

>  }
>  
>  /* Hardware supports L4 tunnel length of 128B (=2^7) which includes