netdev - Re: [PATCH] bonding: Fix sysfs attribute handling

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:	Sat, 22 Mar 2008 18:12:34 -0700
From:	Jay Vosburgh <fubar@...ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Libor Pechacek <lpechacek@...e.cz>,
	bonding-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, stable@...nel.org
Subject: Re: [PATCH] bonding: Fix sysfs attribute handling 

Andrew Morton <akpm@...ux-foundation.org> wrote:

>On Fri, 21 Mar 2008 14:52:55 +0100 Libor Pechacek <lpechacek@...e.cz> wrote:
>
>> bonding: Fix sysfs attribute handling
>> 
>> For bonding interfaces any attempt to read the sysfs directory contents after
>> module removal results in an oops.  The fix is to release sysfs attributes
>> for the interfaces upon module unload.
>> 
>> Signed-off-by: Libor Pechacek <lpechacek@...e.cz>
>> --
>>  drivers/net/bonding/bond_main.c |    3 +--
>>  1 files changed, 1 insertions(+), 2 deletions(-)
>> 
>> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>> index 0942d82..33767d4 100644
>> --- a/drivers/net/bonding/bond_main.c
>> +++ b/drivers/net/bonding/bond_main.c
>> @@ -4528,8 +4528,7 @@ static void bond_free_all(void)
>>  		netif_tx_unlock_bh(bond_dev);
>>  		/* Release the bonded slaves */
>>  		bond_release_all(bond_dev);
>> -		bond_deinit(bond_dev);
>> -		unregister_netdevice(bond_dev);
>> +		bond_destroy(bond);
>>  	}
>
>Is this also needed in 2.6.24.x?

	Yes (I haven't tested it personally, but the affected code is
the same).  I was going to forward this to stable when it was accepted
upstream.  The oops is fairly straightforward to create:

# modprobe bonding
# cd /sys/class/net/bond0/bonding
# rmmod bonding
# ls

	-J

---
	-Jay Vosburgh, IBM Linux Technology Center, fubar@...ibm.com
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html