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From: Cyril Hrubis <>
Subject: [LTP] [PATCH v2] syscalls/bind03: Bugfix for running with option "-i"
Date: Mon, 10 May 2021 16:54:45 +0200	[thread overview]
Message-ID: <YJlJNdi039jziyCp@yuki> (raw)
In-Reply-To: <>

I was looking at the test wondering why do you try to unlink socket that
wasn't bind properly and it looks like kernel creates the socket even in
a case that the bind fails, which is strange and I would call it a bug.

Looking at the kernel code it indeed does mknod before it takes locks
and checks the socket. Even more it turns out that there is in-flight
patchset that is fixing this:

Anyways for now moved the code initializing the sockets into a setup()
function and the only call that had to stay in the run() function is the
unlink(SNAME_B); with a comment that kernel is buggy.

And we will have to write a regression test for this bug once upstream
kernel is fixed.

Also note that I use unlink() here since the test will fail otherwise
once kernel is fixed and there is no socket to be unlinked.

Cyril Hrubis

  reply	other threads:[~2021-05-10 14:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-08  2:14 Zhao Gongyi
2021-05-10 14:54 ` Cyril Hrubis [this message]
2021-05-10 17:15   ` Petr Vorel

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