From: Joshua Hudson <joshudson@gmail.com>
To: musl <musl@lists.openwall.com>
Subject: Re: Hangup calling setuid() from vfork() child
Date: Mon, 30 Sep 2019 12:57:34 -0700 [thread overview]
Message-ID: <CA+jjjYSomVyXPoRkioRj3yhS6xRZ+Ejv9xpm8_ALdJLuD3o=Nw@mail.gmail.com> (raw)
>It's simpler than that. The (retired) specification for vfork did not
>allow anything but _exit or execve in the child after vfork, so the
>issue doesn't arise and it works perfectly fine with threads as long
>as you follow the requirement.
I'm reading the man page for vfork and it says what it actually does, that
is overlay the child process on the memory of the calling process.
posix_spawn can't be used in the originating location, and fork() is
hogging too much memory.
next reply other threads:[~2019-09-30 19:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-30 19:57 Joshua Hudson [this message]
2019-09-30 20:24 ` Markus Wichmann
2019-09-30 20:27 ` Szabolcs Nagy
-- strict thread matches above, loose matches on Subject: below --
2019-09-30 20:45 Joshua Hudson
2019-09-30 15:29 Joshua Hudson
2019-09-30 17:39 ` Markus Wichmann
2019-09-30 17:43 ` Rich Felker
2019-09-30 17:41 ` Rich Felker
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