Date: Mon, 30 Sep 2019 12:57:34 -0700 From: Joshua Hudson <joshudson@...il.com> To: musl <musl@...ts.openwall.com> Subject: Re: Hangup calling setuid() from vfork() child >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.
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