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Message-ID: <alpine.LRH.2.02.1806251928160.30363@argo.troja.mff.cuni.cz>
Date: Mon, 25 Jun 2018 19:29:42 +0200 (CEST)
From: Pavel Kankovsky <peak@...o.troja.mff.cuni.cz>
To: owl-dev@...ts.openwall.com
cc: Vasily Averin <vvs@...tuozzo.com>
Subject: Re: 32-bit syscall breakage in -431 kernel with KAISER
On Sun, 24 Jun 2018, Solar Designer wrote:
> My preliminary analysis suggests that maybe the KAISER backport broke
> the pt_regs ABI for 32-bit syscalls in x86_64 kernels. Specifically,
> SIOCGIFCONF might be failing with EFAULT because fs/compat_ioctl.c:
> dev_ifconf() uses compat_alloc_user_space():
Yes. It fails because compat_alloc_user_space returns NULL.
--
Pavel Kankovsky aka Peak "Que sçay-je?"
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