linux-kernel - Re: [PATCH v2 2/2] riscv: selftests: Add a ptrace test to verify syscall parameter modification

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Message-ID: <878qsxdmjl.fsf@all.your.base.are.belong.to.us>
Date: Tue, 03 Dec 2024 12:38:06 +0100
From: Björn Töpel <bjorn@...nel.org>
To: Celeste Liu <uwu@...lacanthus.name>, Oleg Nesterov <oleg@...hat.com>,
 Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt
 <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, Eric Biederman
 <ebiederm@...ssion.com>, Kees Cook <kees@...nel.org>, Shuah Khan
 <shuah@...nel.org>
Cc: Alexandre Ghiti <alex@...ti.fr>, "Dmitry V. Levin" <ldv@...ace.io>,
 Andrea Bolognani <abologna@...hat.com>, Thomas Gleixner
 <tglx@...utronix.de>, Ron Economos <re@...z.net>, Charlie Jenkins
 <charlie@...osinc.com>, Quan Zhou <zhouquan@...as.ac.cn>, Felix Yan
 <felixonmars@...hlinux.org>, Ruizhe Pan <c141028@...il.com>, Shiqi Zhang
 <shiqi@...c.iscas.ac.cn>, Guo Ren <guoren@...nel.org>, Yao Zi
 <ziyao@...root.org>, Han Gao <gaohan@...as.ac.cn>,
 linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org, stable@...r.kernel.org,
 linux-kselftest@...r.kernel.org, Celeste Liu <uwu@...lacanthus.name>
Subject: Re: [PATCH v2 2/2] riscv: selftests: Add a ptrace test to verify
 syscall parameter modification

Celeste Liu <uwu@...lacanthus.name> writes:

> From: Charlie Jenkins <charlie@...osinc.com>
>
> This test checks that orig_a0 allows a syscall argument to be modified,
> and that changing a0 does not change the syscall argument.
>
> Cc: stable@...r.kernel.org
> Co-developed-by: Quan Zhou <zhouquan@...as.ac.cn>
> Signed-off-by: Quan Zhou <zhouquan@...as.ac.cn>
> Co-developed-by: Celeste Liu <uwu@...lacanthus.name>
> Signed-off-by: Celeste Liu <uwu@...lacanthus.name>
> Signed-off-by: Charlie Jenkins <charlie@...osinc.com>

Nice with a selftest! (Don't think the Cc: stable applies... ;-))

Reviewed-by: Björn Töpel <bjorn@...osinc.com>