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From: Alejandro Colomar <alx.manpages@gmail.com>
To: Christian Brauner <brauner@kernel.org>,
	Florian Weimer <fweimer@redhat.com>,
	Michael Kerrisk <mtk.manpages@gmail.com>
Cc: linux-kernel@vger.kernel.org,
	"Коренберг Марк" <socketpair@gmail.com>,
	"Andrei Vagin" <avagin@openvz.org>,
	"Dmitry Safonov" <dima@arista.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Serge Hallyn" <serge@hallyn.com>,
	bugzilla-daemon@kernel.org, linux-api@vger.kernel.org
Subject: vfork(2) behavior not consistent with fork(2) (was: vfork(2) fails after unshare(CLONE_NEWTIME) (was: [Bug 215769] man 2 vfork() does not document corner case when PID == 1))
Date: Wed, 6 Apr 2022 21:22:13 +0200	[thread overview]
Message-ID: <f21a06dc-1e2a-87cd-59dc-e8d5245b0a50@gmail.com> (raw)
In-Reply-To: <20220406084613.3srklyt27qxcmrcx@wittgenstein>

> $ sudo ./vfork_newpid
> vfork_newpid: PID: 8479
> vfork_newpid: PID 8479 exiting after execve(2): Success
> print_pid: PID 1 exiting. 


I definitely think this is a kernel (or glibc) bug.
execve(2) is supposed to _never_ return 0 (and errno 0).
I submitted a new bug to discuss it.

Please see <https://bugzilla.kernel.org/show_bug.cgi?id=215813>

  reply	other threads:[~2022-04-06 20:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-215769-216477@https.bugzilla.kernel.org/>
     [not found] ` <bug-215769-216477-to2O9X1Knw@https.bugzilla.kernel.org/>
2022-04-02 21:15   ` vfork(2) fails after unshare(CLONE_NEWTIME) (was: [Bug 215769] man 2 vfork() does not document corner case when PID == 1) Alejandro Colomar (man-pages)
2022-04-04  8:05     ` Christian Brauner
2022-04-05 19:28       ` vfork(2) behavior not consistent with fork(2) (was: vfork(2) fails after unshare(CLONE_NEWTIME) (was: [Bug 215769] man 2 vfork() does not document corner case when PID == 1)) Alejandro Colomar
2022-04-06  8:46         ` Christian Brauner
2022-04-06 19:22           ` Alejandro Colomar [this message]
2022-04-06 19:26             ` vfork(2) behavior not consistent with fork(2) Florian Weimer
2022-04-06 19:31               ` [Bug 215813] syscall(SYS_vfork) causes execve() to return 0. (was: vfork(2) behavior not consistent with fork(2)) Alejandro Colomar

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