linux-kernel - Re: [PATCH 07/15] Don't return -ENOSYS as extra notes size if spufs is not loaded

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:	Wed, 12 Sep 2007 13:04:57 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linuxppc-dev@...abs.org
Cc:	Michael Ellerman <michael@...erman.id.au>,
	Jeremy Kerr <jk@...abs.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 07/15] Don't return -ENOSYS as extra notes size if spufs is not loaded

On Wednesday 12 September 2007, Michael Ellerman wrote:
> Because the SPU coredump code might be built as part of a module (spufs),
> we have a stub which is called by the coredump code, this routine then calls
> into spufs if it's loaded.
> 
> Unfortunately the stub returns -ENOSYS if spufs is not loaded, which is
> interpreted by the coredump code as an extra note size of -38 bytes. This
> leads to a corrupt core dump.
> 
> If spufs is not loaded there will be no SPU ELF notes to write, and so the
> extra notes size will be == 0.
> 
> Signed-off-by: Michael Ellerman <michael@...erman.id.au>

Acked-by: Arnd Bergmann <arnd.bergmann@...ibm.com>
-
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/