[Bug 1816846] [NEW] segfault in libc-2.23.so during automatic installation

[Rodrigo Fernandez]

Public bug reported:

I have implemented a PXE server in Virtualbox 6.0.4 to perform automatic
installations of different versions of Linux (particularly Ubuntu).

Until a few hours ago I could perform the automatic installation of
Ubuntu Server 16.04.5 on a VM, but after updating libc6-udeb
(2.23-0ubuntu11), I get the following error:

kernel: [  186.927962] sh[8177]: segfault at 18 ip 00007fc21ff438df sp
00007ffe594a5e80 error 4 in libc-2.23.so[7fc21ff23000+1c0000]

I don't know how to fetch the installation log, so I attach a
screenshot.

** Affects: glibc (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: glib segfault virtualbox

** Attachment added: "Screenshot of the error"
   https://bugs.launchpad.net/bugs/1816846/+attachment/5240397/+files/VirtualBox_libc6-udeb_2.23-0ubuntu11.png

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https://bugs.launchpad.net/bugs/1816846

Title:
  segfault in libc-2.23.so during automatic installation

Status in glibc package in Ubuntu:
  New

Bug description:
  I have implemented a PXE server in Virtualbox 6.0.4 to perform
  automatic installations of different versions of Linux (particularly
  Ubuntu).

  Until a few hours ago I could perform the automatic installation of
  Ubuntu Server 16.04.5 on a VM, but after updating libc6-udeb
  (2.23-0ubuntu11), I get the following error:

  kernel: [  186.927962] sh[8177]: segfault at 18 ip 00007fc21ff438df sp
  00007ffe594a5e80 error 4 in libc-2.23.so[7fc21ff23000+1c0000]

  I don't know how to fetch the installation log, so I attach a
  screenshot.

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