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From: Peter Zijlstra <peterz@infradead.org>
To: sxwjean@me.com
Cc: x86@kernel.org, linux-mm@kvack.org, Xiongwei Song <sxwjean@gmail.com>
Subject: Re: [PATCH 2/2] x86/mm: Randomize va with generic arch_pick_mmap_layout()
Date: Tue, 21 Sep 2021 14:02:39 +0200	[thread overview]
Message-ID: <YUnJ3zrF36RPlNCH@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20210921110252.2593542-3-sxwjean@me.com>

On Tue, Sep 21, 2021 at 07:02:52PM +0800, sxwjean@me.com wrote:
> +static inline int is_compat_task(void)
> +{
> +	return IS_ENABLED(CONFIG_COMPAT) && test_thread_flag(TIF_32BIT);
> +}

This is fundamentally broken.


  reply	other threads:[~2021-09-21 12:02 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-21 11:02 [PATCH 0/2] Use generic code for virtual address of randomization of x86 sxwjean
2021-09-21 11:02 ` [PATCH 1/2] x86: Rename TIF_ADDR32 to TIF_32BIT sxwjean
2021-09-21 11:50   ` Peter Zijlstra
2021-09-21 14:13     ` Xiongwei Song
2021-09-21 11:02 ` [PATCH 2/2] x86/mm: Randomize va with generic arch_pick_mmap_layout() sxwjean
2021-09-21 12:02   ` Peter Zijlstra [this message]
2021-09-21 13:24 ` [PATCH 0/2] Use generic code for virtual address of randomization of x86 Kees Cook
2021-09-21 14:11   ` Xiongwei Song
2021-09-21 14:19   ` Peter Zijlstra

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