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In-Reply-To: <87y2n54hv4.fsf@oldenburg2.str.redhat.com>
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Mon, 27 Jul 2020 04:55:25 -0700
Message-ID: <CAMe9rOo_Yx9w3PdNwfpw=D6LZCbd269mtFzEJBNdvqEOeWSLuw@mail.gmail.com>
Subject: Re: [PATCH] nptl: Zero-extend arguments to SETXID syscalls [BZ #26248]
To: Florian Weimer <fweimer@redhat.com>
Cc: "Carlos O'Donell via Libc-alpha" <libc-alpha@sourceware.org>,
 "Carlos O'Donell" <carlos@redhat.com>
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On Sun, Jul 26, 2020 at 11:00 PM Florian Weimer <fweimer@redhat.com> wrote:
>
> * Carlos O'Donell via Libc-alpha:
>
> > We can't fix this easily quickly.
>
> We can make this test a non-container xtest today.  It's better than no
> test at all.
>

Currently this test is in sysdeps/unix/sysv/linux/x86_64/x32/tst-setgroups.c
since there are

static int
do_test (void)
{
  int size;
  /* NB: Stack address is at 0xfffXXXXX.  */
  gid_t list[NGROUPS_MAX];
  int status = EXIT_SUCCESS;

and x32 stack starts at 0xfffXXXXX, which triggers this bug.  Should
it be moved to nptl/tst-setgroups.c?

-- 
H.J.