linux-kernel - Re: [PATCH 2/5] x86: fix runtime error in arch/x86/kernel/cpu/mcheck/mce_amd

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:	Mon, 28 Jan 2008 22:42:20 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Greg KH <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	Yinghai Lu <yhlu.kernel@...il.com>,
	Jacob Shin <jacob.shin@....com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Alexander Viro <viro@....linux.org.uk>
Subject: Re: [PATCH 2/5] x86: fix runtime error in
	arch/x86/kernel/cpu/mcheck/mce_amd_64.c

[Ingo Molnar - Mon, Jan 28, 2008 at 08:01:49PM +0100]
| 
| * Greg KH <gregkh@...e.de> wrote:
| 
| > > Are kobjects protected against accidental copying? If not add &kobj 
| > > to the 'magic value' too, and check that - it becomes 
| > > copying-resistent that way and has the same cost to check. (which is 
| > > negligible anyway)
| > 
| > Oh, that's a very cool idea, I like it :)
| 
| hey, you are welcome :-)
| 
| [ I guess i should not mention that i've implemented list debugging for 
|   Linux that checksums the struct list contents and stores the checksum 
|   in it (offset by a magic value plus to address of the list head), and 
|   thus protects it against accidental corruption? It was capable of 
|   reliably detecting mixed up list_add() arguments for example, it 
|   detected list corruption of _every_ sort, it detected double
|   list_del() and list_add() of an already active list member as well. It
|   was even capable of detecting SMP races: two parallel unserialized
|   list_del()'s on the same list head were detected and warned about as 
|   well. I guess i should release it one of these days? =B-) ]
| 

did miss some words while reading this... ;)
really sorry, drop the mail i sent please

		- Cyrill -
--
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/