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[Bug libc/14749] Dangerous race condition with vfork in posix_spawn
- From: "fweimer at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Wed, 07 Mar 2018 09:53:19 +0000
- Subject: [Bug libc/14749] Dangerous race condition with vfork in posix_spawn
- Auto-submitted: auto-generated
- References: <bug-14749-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=14749
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
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CC| |fweimer at redhat dot com
--- Comment #3 from Florian Weimer <fweimer at redhat dot com> ---
(In reply to Rich Felker from comment #0)
> Fundamentally, the danger of this race is the possibility of it giving rise
> to two threads/processes sharing an address space, but with different
> privileges; this kind of situation must never be allowed to arise.
Why? The kernel does this, too, and user-space file servers really want this
functionality as well.
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