From: David Hildenbrand <david@redhat.com>
To: Mark Brown <broonie@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Shuah Khan <shuah@kernel.org>, Mike Rapoport <rppt@kernel.org>
Cc: linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] selftests/mm: Check for YAMA ptrace_scope configuraiton before modifying it
Date: Wed, 11 Jun 2025 15:20:57 +0200 [thread overview]
Message-ID: <a020ab91-2da7-4c47-b88e-4639b8b0bd37@redhat.com> (raw)
In-Reply-To: <20250610-selftest-mm-enable-yama-v1-1-0097b6713116@kernel.org>
On 10.06.25 16:07, Mark Brown wrote:
> When running the memfd_secret test run_vmtests.sh unconditionally tries
> to confgiure the YAMA LSM's ptrace_scope configuration, leading to an error
> if YAMA is not in the running kernel:
>
> # ./run_vmtests.sh: line 432: /proc/sys/kernel/yama/ptrace_scope: No such file or directory
> # # ----------------------
> # # running ./memfd_secret
> # # ----------------------
>
> Check that this file is present before trying to write to it.
>
> The indentation here is a bit odd, and it doesn't seem great that we
> configure but don't restore ptrace_scope.
>
> Signed-off-by: Mark Brown <broonie@kernel.org>
> ---
Acked-by: David Hildenbrand <david@redhat.com>
--
Cheers,
David / dhildenb
prev parent reply other threads:[~2025-06-11 13:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-10 14:07 Mark Brown
2025-06-10 17:16 ` Mike Rapoport
2025-06-11 13:20 ` David Hildenbrand [this message]
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