From: random832@fastmail.com (Random832)
Subject: [TUHS] The evolution of Unix facilities and architecture
Date: Fri, 12 May 2017 20:51:43 -0400 [thread overview]
Message-ID: <1494636703.1615694.975085000.13626EAC@webmail.messagingengine.com> (raw)
In-Reply-To: <20170513004423.F3A9C18C099@mercury.lcs.mit.edu>
On Fri, May 12, 2017, at 20:44, Noel Chiappa wrote:
> So now I'm wondering - was this really the bug? Or was there some
> bug in ptrace I don't see, which was the actual bug that's being
> discussed here.
Ah. There's the other piece. You start the SUID program under the
debugger, and rather than kicking off the debugger, it simply starts it
non-suid. *However*, in the presence of shared text (either of the two
cases being checked for in the other place), you can make changes to the
text image (e.g. put whatever code you want at the entry point), which
will be reused the *next* time it is started *without* the debugger.
next prev parent reply other threads:[~2017-05-13 0:51 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-13 0:44 Noel Chiappa
2017-05-13 0:51 ` Random832 [this message]
2017-05-13 0:55 ` Dave Horsfall
2017-05-13 1:17 ` Chris Torek
2017-05-13 15:25 ` Steve Simon
2017-05-13 16:55 ` Clem Cole
2017-05-13 17:19 ` William Pechter
2017-05-14 12:55 ` Derek Fawcus
2017-05-14 22:12 ` Dave Horsfall
2017-05-15 1:24 ` Nemo
2017-05-15 18:00 ` Steve Johnson
2017-05-16 22:33 ` Ron Natalie
2017-05-16 23:13 ` Arthur Krewat
2017-05-16 23:18 ` Ron Natalie
2017-05-13 23:01 ` Dave Horsfall
[not found] <mailman.1.1494986402.2329.tuhs@minnie.tuhs.org>
2017-05-19 14:31 ` David
-- strict thread matches above, loose matches on Subject: below --
2017-05-16 13:20 Noel Chiappa
2017-05-16 13:46 ` Clem Cole
2017-05-14 21:44 Noel Chiappa
2017-05-13 1:25 Noel Chiappa
2017-05-12 23:30 Noel Chiappa
2017-05-12 23:38 ` Dave Horsfall
2017-05-12 23:52 ` Random832
2017-05-13 0:26 ` Dave Horsfall
2017-05-13 0:48 ` Random832
2017-05-13 0:22 ` Clem Cole
2017-05-13 0:23 ` Clem Cole
2017-05-12 18:43 Doug McIlroy
2017-05-12 18:56 ` Dan Cross
2017-05-12 19:43 ` Clem Cole
2017-05-12 20:06 ` Clem Cole
2017-05-12 20:40 ` Jeremy C. Reed
2017-05-12 21:29 ` Clem Cole
2017-05-12 21:29 ` Ron Natalie
2017-05-12 15:12 Noel Chiappa
2017-05-12 15:17 ` Clem Cole
2017-05-12 15:18 ` Clem Cole
2017-05-12 15:46 ` Clem Cole
2017-05-11 17:08 Noel Chiappa
2017-05-11 21:34 ` Dave Horsfall
2017-05-11 14:07 Noel Chiappa
2017-05-11 14:21 ` Larry McVoy
2017-05-11 16:17 ` Clem Cole
2017-05-11 17:11 ` Michael Kjörling
2017-05-11 21:44 ` Dave Horsfall
2017-05-11 22:06 ` Warner Losh
2017-05-12 6:24 ` Hellwig Geisse
2017-05-12 21:12 ` Dave Horsfall
2017-05-12 23:25 ` Hellwig Geisse
2017-05-11 16:15 ` Clem Cole
2017-05-11 16:52 ` Warner Losh
2017-05-11 17:12 ` Clem Cole
2017-05-11 20:37 ` Ron Natalie
2017-05-11 22:25 ` Larry McVoy
2017-05-11 22:30 ` Ron Natalie
2017-05-11 23:47 ` Dave Horsfall
2017-05-11 23:48 ` Ron Natalie
2017-05-12 0:21 ` Larry McVoy
2017-05-12 2:42 ` Warner Losh
2017-05-12 0:16 ` Larry McVoy
2017-05-12 1:41 ` Wesley Parish
2017-05-12 1:05 ` Toby Thain
2017-05-12 8:17 ` Michael Kjörling
2017-05-12 13:56 ` Tim Bradshaw
2017-05-12 14:22 ` Michael Kjörling
2017-05-12 14:30 ` Larry McVoy
2017-05-12 15:11 ` Tim Bradshaw
2017-05-12 15:52 ` Chet Ramey
2017-05-12 16:21 ` Warner Losh
2017-05-12 8:15 ` Harald Arnesen
2017-05-14 4:30 ` Theodore Ts'o
2017-05-14 17:40 ` Clem Cole
2017-05-10 14:08 Diomidis Spinellis
2017-05-10 14:38 ` Steffen Nurpmeso
2017-05-10 23:09 ` Erik Berls
2017-05-11 12:40 ` Steffen Nurpmeso
2017-05-11 0:49 ` Clem Cole
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