Bug#696009: segfaults when given invalid input

[Wouter Verhelst]

Package: grub-common
Version: 1.99-23.1
Severity: normal
File: /usr/sbin/grub-probe

Hi,

As I was trying to track down the cause of 681227, I was trying to run
some commands from the code. As part of that, I tried running grub-probe
to see what it was supposed to do. Wrongly assuming it would expect (or,
at least, support) grub-style device names, I tried to run:

grub-probe '(hd0)'

which resulted in a segfault.

While I found out later that this is not the way grub-probe expects to
be called, I don't think it should segfault on invalid input.

-- System Information:
Debian Release: 7.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=nl_BE.UTF-8, LC_CTYPE=nl_BE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages grub-common depends on:
ii  gettext-base        0.18.1.1-10
ii  libc6               2.13-37
ii  libdevmapper1.02.1  2:1.02.74-5
ii  libfreetype6        2.4.9-1
ii  libfuse2            2.9.2-2
ii  liblzma5            5.1.1alpha+20120614-2
ii  zlib1g              1:1.2.7.dfsg-13

Versions of packages grub-common recommends:
ii  os-prober  1.56

Versions of packages grub-common suggests:
pn  desktop-base   <none>
pn  grub-emu       <none>
pn  multiboot-doc  <none>
pn  xorriso        <none>

-- no debconf information