linux-kernel - Re: pm/linux-next cause network stop working with qemu-kvm/e1000

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, 23 Mar 2013 01:38:43 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Bob Moore <robert.moore@...el.com>
Cc:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: pm/linux-next cause network stop working with qemu-kvm/e1000

On Fri, Mar 22, 2013 at 5:27 PM, Yinghai Lu <yinghai@...nel.org> wrote:
> c13085e519e8984fede41fa3d6a5502523b10996 is the first bad commit
> commit c13085e519e8984fede41fa3d6a5502523b10996
> Author: Bob Moore <robert.moore@...el.com>
> Date:   Fri Mar 8 09:19:38 2013 +0000
>
>     ACPICA: Resource Mgr: Prevent infinite loops in resource walks
>
>     Add checks for zero-length resource descriptors in all code that
>     loops through a resource descriptor list. This prevents possible
>     infinite loops because the length is used to increment the traveral
>     pointer and detect the end-of-descriptor.
>
>     Signed-off-by: Bob Moore <robert.moore@...el.com>
>     Signed-off-by: Lv Zheng <lv.zheng@...el.com>
>     Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>
> :040000 040000 84f29d6ee654ffe4c935ce9023208019b2ef09a5
> c8a6613be9a5a130f69e654c5b560a8adb2174db M      drivers
>
>
> long delay after
> calling  ip_auto_config+0x0/0xea4 @ 1
>
> also happen on one 8 sockets nehalem-ex.
>
> If I revert that commit, network works again.

Attached patch fix the problem. Please fold it into offending patch in
pm/linux-next.

Thanks

Yinghai

Download attachment "fix_x.patch" of type "application/octet-stream" (542 bytes)