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  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:	Mon, 03 Jun 2013 16:26:45 +0800
From:	Gao feng <>
To:	Arkadiusz Miskiewicz <>
CC:	Jason Wang <>,,
	Balakumaran Kannan <>,
	Maruthi Thotad <>
Subject: Re: [PATCH] net: tun: release the reference of tun device in tun_recvmsg

On 05/29/2013 06:29 AM, Arkadiusz Miskiewicz wrote:
> On Friday 26 of April 2013, Jason Wang wrote:
>> On 04/26/2013 01:03 PM, Gao feng wrote:
>>> On 04/25/2013 11:04 PM, Arkadiusz Miskiewicz wrote:
>>>> On Thursday 25 of April 2013, Gao feng wrote:
>>>>> We forget to release the reference of tun device in tun_recvmsg.
>>>>> bug introduced in commit 54f968d6efdbf7dec36faa44fc11f01b0e4d1990
>>>>> (tuntap: move socket to tun_file)
>>>> Hm, still hitting the problem even with the patch - dmesg:
>>> Ok, seams there are another problems we haven't discovered.
>>> it's excellent if you can find out which commit introduces this
>>> bug by git bisect.
>>> Thanks!
>> Yes, bisect will be helpful. If you could not do it, please tell me the
>> steps to reproduce the issue and the tree you used. I just test with
>> net.git and net-next.git with a tap device created by tunctl, didn't
>> meet the issue.
> Took a while. Suspected patch is below. I'm running fresh linus git
> (3.10.0-rc3-00046-g58f8bbd) with the patch reverted and couldn't
> reproduce problem anymore after several tries (will do more testing
> in meantime).

Thanks for your helpful work :)
I already send a patch to fix this problem.

> My tap0 has ipv6 addresses (with link scope only). openvpn 2.3.1.

Indeed, not only tap/tun device, the other net devices can trigger
this problem too.

To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists