linux-kernel - Re: [PATCH 03/10] uprobes: Send SIGILL if handle

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: <20150506133024.GE4519@linux.vnet.ibm.com>
Date:	Wed, 6 May 2015 19:00:24 +0530
From:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Anton Arapov <arapov@...il.com>,
	David Long <dave.long@...aro.org>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Ingo Molnar <mingo@...nel.org>,
	Jan Willeke <willeke@...ibm.com>,
	Jim Keniston <jkenisto@...ibm.com>,
	Mark Wielaard <mjw@...hat.com>,
	Pratyush Anand <panand@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/10] uprobes: Send SIGILL if handle_trampoline() fails

* Oleg Nesterov <oleg@...hat.com> [2015-05-04 14:48:58]:

> 1. It doesn't make sense to continue if handle_trampoline() fails,
>    change handle_swbp() to always return after this call.
> 
> 2. Turn pr_warn() into uprobe_warn(), and change handle_trampoline()
>    to send SIGILL on failure. It is pointless to return to user mode
>    with the corrupted instruction_pointer() which we can't restore.

I agree

> 
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>
> ---

Acked-by: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
-- 
Thanks and Regards
Srikar Dronamraju

--
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/