From: email@example.com To: firstname.lastname@example.org Subject: Re: [9front] [PATCH] kernel: disallow executing from #| or #d Date: Tue, 10 May 2022 10:40:41 -0400 [thread overview] Message-ID: <77567FF86B34A592067F8FA1ADD7F3C6@eigenstate.org> (raw) In-Reply-To: <email@example.com> Quoth Jacob Moody <firstname.lastname@example.org>: > Hello, > > I noticed that you could execute from #| and #d. > ex: > > cpu% bind '#|' /n/pipetest > cpu% /n/pipetest/data1 & > cpu% echo '#!/bin/rc' >> /n/pipetest/data > cpu% echo 'echo hello' >> /n/pipetest/data > cpu% hello > > I believe this would also work for binaries > if the writer could predict what parts of the binary > the kernel will want to read. I am inclined to > block this behavior but would be curious what others > think. Included is a patch to error on OEXEC opens > in devdup and devpipe. I think all files should be the same, as much as they can be -- we shouldn't necessarily need to care if we have a pipe or not.
next prev parent reply other threads:[~2022-05-10 14:42 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-10 6:40 Jacob Moody 2022-05-10 14:40 ` ori [this message] 2022-05-10 16:34 ` Jacob Moody 2022-05-10 19:59 ` Amavect 2022-05-10 22:47 ` Jacob Moody 2022-05-11 4:21 ` Amavect 2022-05-11 6:31 ` Jacob Moody 2022-05-11 16:32 ` Amavect 2022-05-11 16:50 ` Jacob Moody 2022-05-15 2:43 ` Amavect 2022-05-15 15:26 ` Amavect 2022-05-15 16:28 ` Jacob Moody 2022-05-10 20:52 ` [9front] " Anthony Martin
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