linux-kernel - Re: BUG kmalloc-2048: Poison overwritten

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]

Message-ID: <dd18b0c30806012144ncd458f3jdeb1336e9082948d@mail.gmail.com>
Date:	Mon, 2 Jun 2008 04:44:23 +0000
From:	"Justin Mattock" <justinmattock@...il.com>
To:	"Arjan van de Ven" <arjan@...radead.org>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: BUG kmalloc-2048: Poison overwritten

On Mon, Jun 2, 2008 at 4:15 AM, Arjan van de Ven <arjan@...radead.org> wrote:
> On Mon, 2 Jun 2008 03:53:43 +0000
> "Justin Mattock" <justinmattock@...il.com> wrote:
>
>> On Mon, Jun 2, 2008 at 2:01 AM, Arjan van de Ven
>> <arjan@...radead.org> wrote:
>> > On Sun, 1 Jun 2008 23:13:51 +0000
>> > "Justin Mattock" <justinmattock@...il.com> wrote:
>> >
>> >> I received this after the second simultaneous suspend: (I will try
>> >> and see if this is re creatable or not)
>> >>
>> >> [  232.270737] BUG: unable to handle kernel paging request at
>> >> 6b6b6c6b
>> >
>> > bad bad bad
>> >
>> >
>> >> [  232.270743] IP: [<c013f96d>] module_put+0x12/0x2b
>> >> [  232.270750] *pde = 00000000
>> >> [  232.270753] Oops: 0002 [#1] SMP
>> >> [  232.270757] Modules linked in: hci_usb cpufreq_ondemand
>> >> cpufreq_performance cpufreq_powersave rfcomm hidp l2cap bluetooth
>> >> fan ipmi_watchdog ipmi_msghandler uinput wlan_tkip
>> >> ieee80211_crypt_tkip ieee80211_crypt arpt_mangle arptable_filter
>> >> arp_tables nf_conntrack_ipv4 nf_conntrack iptable_mangle
>> >> iptable_filter ip_tables x_tables intelfb i2c_i810 i2c_algo_bit
>> >> coretemp eeprom acpi_cpufreq fglrx(P) applesmc joydev uvcvideo
>> >> appletouch wlan_scan_sta
>> >   ^^^^^
>> >
>> > naughty
>> >
>> >> ath_rate_sample firewire_ohci firewire_core snd_hda_intel ath_pci
>> >> snd_pcm wlan ohci1394 intel_agp evdev ath_hal(P) snd_timer ieee1394
>> >                                        ^^^^^^^^^^
>> >
>> > worse
>> >
>> >
>> >> Hopefully this is nothing serious,
>> >> regards;
>> >
>> > actually it's very serious, something is scribbling all over your
>> > memory, it's just a matter of time before that overwrites something
>> > important on your filesystem, and then you have a high risk of
>> > losing most of your data.
>> >
>> > However, since  you're using 2 proprietary kernel modules, you
>> > really ought to contact the vendors for those modules for support;
>> > they're a very likely cause for problems
>> > (for example, these two are the cause for the number 1, 2, 5 and 7
>> > of the top 10 kernel oopses/crashes for the last week)
>> >
>> >
>> >
>> great!!!  Well The problem I have with these modules is A) madwifi
>> "waiting until support is in the kernel for this one,
>
> you mean the ath5k driver which already is in the kernel?
> If it doesnt work for you, have you filed a bugzilla ?
>
>> for now I
>> just have to deal with risking loosing any data". B) graphics driver I
>> can unload the driver but then loose suspend to mem "argh!!"
>
> A current ATI driver in X.org ought to be close to getting this one
> right.
>
>> aside from that, I just performed the test again of simultaneously
>> suspending to memory and didn't receive this message,
>
> sure the corruption this time wasn't in a redzone.. but maybe elsewhere.
>
>> so now I'm at a
>> lost for words as to what is happening. The positive side is there
>> isn't any important data on my system i.g. important doc's etc..., but
>>
>
> good luck.
>
>
> --
> If you want to reach me at my work email, use arjan@...ux.intel.com
> For development, discussion and tips for power savings,
> visit http://www.lesswatts.org
>

Thanks for the help: if the new athk5 supports model AR5418 then I'm a
go for that,
As for the rest of the issues "nice, now you have me freaked out," "I
guess I'll have to use OSX," but then If I do
I'll have to listen to this voice in my head saying " use Linux" "go
ahead Justin use Linux" "come on what are you chicken",
kind of like putting you're full day's worth of work in; and driving
on the 405, Then all of a sudden having a voice tell you
to go grab a nice cold refreshment(B$%^r)
regards;

-- 
Justin P. Mattock
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/