buffer overflow during debootstrap --variant=fakechroot

[Ken Sharp]

Running a debootstrap fakechroot fails during mawk set up.

$ fakechroot fakeroot debootstrap --variant=fakechroot noble noble

Setting up mawk (1.3.4.20240123-1build1) ...
*** buffer overflow detected ***: terminated
Aborted (core dumped)
dpkg: error processing package mawk (--configure):
 installed mawk package post-installation script subprocess returned error exit status 134

Same with Oracular.

A normal debootstrap (no variant) completes without error.

Could be a fakeroot fault. I will reassign if I figure out the cause.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: mawk 1.3.4.20240123-1build1
ProcVersionSignature: Ubuntu 6.5.0-28.29~22.04.1-generic 6.5.13
Uname: Linux 6.5.0-28-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Wed May 15 13:19:11 2024
Dependencies:
 gcc-14-base 14-20240412-0ubuntu1
 libc6 2.39-0ubuntu8.1
 libgcc-s1 14-20240412-0ubuntu1
 libidn2-0 2.3.7-2build1
 libunistring5 1.1-2build1
ProcEnviron:
 LD_LIBRARY_PATH=<set>
 LD_PRELOAD=<set>
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
SourcePackage: mawk
UpgradeStatus: No upgrade log present (probably fresh install)

[Ken Sharp (kennybobs)]

This occurs on Debian Testing and Unstable too when trying to debootstrap both Noble and Oracular, but not Debian Stable, Testing or Unstable.

Workaround is --exclude=mawk.

[Ken Sharp (kennybobs)]

fakeroot
Stable 1.31-1.2
Testing 1.33-1
Unstable 1.34-1
Noble 1.33-1
Oracular 1.34-1

fakechroot
Stable 2.20.1+ds-15
Testing 2.20.1+ds-17
Unstable 2.20.1+ds-17
Noble 2.20.1+ds-15
Oracular 2.20.1+ds-15

debootstrap
Stable 1.0.128+nmu2+deb12u1
Testing 1.0.134
Unstable 1.0.134
Noble 1.0.134ubuntu1
Oracular 1.0.134ubuntu1

Note, however, that older versions of Ubuntu fail to fakechroot debootstrap due to other issues, so don't get this far in the process. It's difficult to work out when this issue was introduced.