linux-kernel - Re: [PATCH AUTOSEL 5.15 5/9] x86/mm: Disallow vsyscall page read for copy_from_kernel

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Message-ID: <05870905-f592-186c-146f-0dfe734cec60@igalia.com>
Date: Mon, 11 Mar 2024 19:01:58 -0300
From: "Guilherme G. Piccoli" <gpiccoli@...lia.com>
To: Sasha Levin <sashal@...nel.org>
Cc: Alexei Starovoitov <ast@...nel.org>, Borislav Petkov <bp@...en8.de>,
 bpf <bpf@...r.kernel.org>,
 "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
 houtao1@...wei.com, linux-kernel <linux-kernel@...r.kernel.org>,
 "luto@...nel.org" <luto@...nel.org>, Ingo Molnar <mingo@...hat.com>,
 Peter Zijlstra <peterz@...radead.org>, stable@...r.kernel.org,
 "x86@...nel.org" <x86@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
 sohil.mehta@...el.com, xrivendell7@...il.com
Subject: Re: [PATCH AUTOSEL 5.15 5/9] x86/mm: Disallow vsyscall page read for
 copy_from_kernel_nofault()

Hi Sasha et. al.,

thanks for this backport! I'm not sure how common is to send a Tested-by
to stable in these cases, but since I tested this one anyway, given that
I was working with this syzkaller report...feel free to add my:

Tested-by: Guilherme G. Piccoli <gpiccoli@...lia.com> # v5.15.y

Cheers,

Guilherme