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[2003:cf:574b:cf00:f62e:8cab:c07c:593e]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-435e10e46cesm8825497f8f.7.2026.01.28.11.05.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jan 2026 11:05:26 -0800 (PST) Message-ID: Subject: Re: [PATCH v3 4/7] seccomp: mark first listener in the tree From: Alexander Mikhalitsyn To: Aleksa Sarai , Alexander Mikhalitsyn Cc: kees@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Andy Lutomirski , Will Drewry , Jonathan Corbet , Shuah Khan , Tycho Andersen , Andrei Vagin , Christian Brauner , =?ISO-8859-1?Q?St=E9phane?= Graber Date: Wed, 28 Jan 2026 20:05:25 +0100 In-Reply-To: <2026-01-21-hectic-wriggly-dips-flags-EE541h@cyphar.com> References: <20251211124614.161900-1-aleksandr.mikhalitsyn@canonical.com> <20251211124614.161900-5-aleksandr.mikhalitsyn@canonical.com> <2026-01-21-hectic-wriggly-dips-flags-EE541h@cyphar.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2-0+deb13u1 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Wed, 2026-01-21 at 13:22 +0100, Aleksa Sarai wrote: > On 2025-12-11, Alexander Mikhalitsyn > wrote: > > Let's note if listener was a first one installed in the seccomp > > filters tree. We will need this information to retain old > > quirk behavior (as before seccomp nesting introduced). > >=20 > > Also, rename has_duplicate_listener() to > > check_duplicate_listener(), > > cause now this function is not read-only, but also modifies a state > > of a new_child seccomp_filter. > >=20 > > No functional change intended at this point. >=20 > Ah sorry, I didn't notice the date of the mails -- this was sent > before > the LPC discussion! I'll wait for the v4 before reviewing further. Hi Aleksa, Yeah, I'm thinking about preparing a separate patches to address a quirky seccomp behavior we discussed during LPC and then resend this series. Kind regards, Alex