From: "H.J. Lu" <hjl.tools@gmail.com>
To: Florian Weimer <fweimer@redhat.com>
Cc: "H.J. Lu via Libc-alpha" <libc-alpha@sourceware.org>
Subject: Re: [PATCH] nptl: Zero-extend arguments to SETXID syscalls [BZ #26248]
Date: Thu, 16 Jul 2020 09:00:42 -0700 [thread overview]
Message-ID: <CAMe9rOrJZF4yMGH_KXeeVtwnjPAW6v6qC4OcUh1N5z=WhNVYGQ@mail.gmail.com> (raw)
In-Reply-To: <87d04vxxk6.fsf@oldenburg2.str.redhat.com>
On Thu, Jul 16, 2020 at 8:57 AM Florian Weimer <fweimer@redhat.com> wrote:
>
> * H. J. Lu via Libc-alpha:
>
> >> Isn't it sufficient to change the type of id to unsigned long int[3]?
> >> The UID arguments are unsigned on the kernel side, so no sign extension
> >> is required.
> >
> > It works. Here is the updated patch. OK for master?
>
> Does the test work if the list of supplementary groups is empty?
>
My patch turns:
setgroups(0, bad address);
into
setgroups(0, good address);
It should be OK.
--
H.J.
next prev parent reply other threads:[~2020-07-16 16:01 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-16 11:26 [PATCH] nptl: Properly inline setgroups syscall " H.J. Lu
2020-07-16 12:03 ` Florian Weimer
2020-07-16 12:46 ` [PATCH] nptl: Zero-extend arguments to SETXID syscalls " H.J. Lu
2020-07-16 15:57 ` Florian Weimer
2020-07-16 16:00 ` H.J. Lu [this message]
2020-07-16 19:38 ` Aurelien Jarno
2020-07-16 19:45 ` Aurelien Jarno
2020-07-16 21:42 ` H.J. Lu
2020-07-17 2:14 ` Carlos O'Donell
2020-07-17 2:46 ` H.J. Lu
2020-07-17 15:01 ` Carlos O'Donell
2020-07-17 15:13 ` Florian Weimer
2020-07-17 15:52 ` Carlos O'Donell
2020-07-17 19:31 ` H.J. Lu
2020-07-17 21:22 ` Carlos O'Donell
2020-07-23 20:03 ` H.J. Lu
2020-07-23 21:11 ` Carlos O'Donell
2020-07-23 21:17 ` Adhemerval Zanella
2020-07-23 21:20 ` Carlos O'Donell
2020-07-27 3:37 ` Carlos O'Donell
2020-07-27 6:00 ` Florian Weimer
2020-07-27 11:55 ` H.J. Lu
2020-07-27 12:20 ` Florian Weimer
2020-07-27 14:29 ` V3 " H.J. Lu
2020-07-27 15:49 ` Florian Weimer
2020-07-27 19:17 ` H.J. Lu
2020-07-20 11:38 ` Florian Weimer
2020-07-17 19:42 ` V2 " H.J. Lu
2020-07-17 22:27 ` Aurelien Jarno
2020-07-17 22:31 ` H.J. Lu
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