From: Borislav Petkov <bp@alien8.de>
To: gilad kleinman <dkgs1998@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86/module: Fixed bug allowing invalid relocation addresses.
Date: Wed, 18 Mar 2020 20:58:04 +0100 [thread overview]
Message-ID: <20200318195803.GE4377@zn.tnic> (raw)
In-Reply-To: <CAOQ9fa-i3mW2jQ2P=+34Feh9sZzaqDFKHau9GrgEWR9d26AqDg@mail.gmail.com>
On Wed, Mar 18, 2020 at 09:40:47PM +0200, gilad kleinman wrote:
> When you load a bad module and the kernel crashes -- the panic message will
> usually be related to the module and easily traced back. If you load a
> module with a bad relocation table (because of a bit-flip \ bad toolchain),
First of all, please do not top-post.
Then, if you're worried about corrupted module text, we have
CONFIG_MODULE_SIG which verifies previously signed modules. AFAICT, that
should take care of the issue you're talking about here.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
prev parent reply other threads:[~2020-03-18 19:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-14 21:36 [PATCH] x86/module: Fixed bug allowing invalid relocation addresses Gilad Wharton Kleinman
2020-03-16 12:58 ` Peter Zijlstra
2020-03-18 19:46 ` gilad kleinman
[not found] ` <CAOQ9fa-i3mW2jQ2P=+34Feh9sZzaqDFKHau9GrgEWR9d26AqDg@mail.gmail.com>
2020-03-18 19:58 ` Borislav Petkov [this message]
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