Hi Rob,
#off-topic
On Sun, 24 Aug 2025 at 20:40, Rob Landley wrote:
> Anyway, this works fine on little endian, but the qemu-system-sh4eb
> build has something hinky in the ethernet, I haven't tackled it myself
> because I don't know whether the device emulation or the driver is
> what's missing
On 8/23/25 09:19, Thorsten Glaser wrote:
There are no alternatives - qemu is unique in this regard. And
it has never been designed for this usage. What we had for 15+
years, unnoticed, is like `chmod u+s /bin/sh`, which is never
supposed to be used like this.
Perhaps, but there’s shades in be
On Sat, Aug 23, 2025 at 04:19:29PM +0200, Thorsten Glaser wrote:
> On Sat, 23 Aug 2025, Michael Tokarev wrote:
>
> >> Does this entirely break things like running sudo within a
> >> qemu-user-emulated chroot (or buildd/cowbuilder/schroot)?
>
> > It discontinues elevating (changing) privileges usi
On 23.08.2025 21:17, Thorsten Glaser wrote:
On Sat, 23 Aug 2025, Michael Tokarev wrote:
What are we talking about? I don't understand.
About this:
Can you read my whole question instead of just the top of it?
This is impolite when you skip whole my explanation.
prompt> chroot --userspec=
On Sat, 23 Aug 2025, Michael Tokarev wrote:
> What are we talking about? I don't understand.
About this:
prompt> chroot --userspec=uname:gname /path/to/chroot /bin/sh
chroot> do something
chroot> sudo do something else
[…]
chroot> exit
What part of that ↑ precisely do you not understand?
And
Please, everyone, tell me.
Suppose we had suid-root /bin/sh for 15 years. We noticed this
and removed the suid bit from it, finally - because this way everyone's
system was trivially vulnerable to a trivial local root - there isn't
even "exploit" necessary, just run /bin/sh and be root.
Now you
On Sat, 2025-08-23 at 16:19 +0200, Thorsten Glaser wrote:
> (Cc porters, for the arches where some buildds use qemu-user)
Removing debian-po...@lists.debian.org again and using
debian-68k@lists.debian.org
and debian-sup...@lists.debian.org instead as to not spam all ports mailing
lists.
> On Sa
(Cc porters, for the arches where some buildds use qemu-user)
On Sat, 23 Aug 2025, Michael Tokarev wrote:
>> Does this entirely break things like running sudo within a
>> qemu-user-emulated chroot (or buildd/cowbuilder/schroot)?
> It discontinues elevating (changing) privileges using qemu-user b
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