GNU bug report logs - #19484
segfault: 'disk-set' on empty disk

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Hans Spath <inbox-527 <at> hans-spath.de>
To: bug-parted <at> gnu.org
Subject: segfault: 'disk-set' on empty disk
Date: Thu, 01 Jan 2015 21:22:52 +0100

$ dd if=/dev/zero of=zero bs=1K count=1
1+0 records in
1+0 records out
1024 bytes (1.0 kB) copied, 0.000146148 s, 7.0 MB/s

$ parted zero disk_set
WARNING: You are not superuser.  Watch out for permissions.
Error: /home/user1/zero: unrecognised disk label


You found a bug in GNU Parted! Here's what you have to do:
[...]
Also include any additional information about your setup you
consider important.
                                                                         
Command History:
Segmentation fault (core dumped)

$ parted --version | head -1
parted (GNU parted) 3.2

$ uname -a
Linux host1 3.17.6-1-ARCH #1 SMP PREEMPT Sun Dec 7 23:43:32 UTC 2014
x86_64 GNU/Linux

$ valgrind parted zero disk_set |& head -20
==14358== Memcheck, a memory error detector
[...]
Error: /home/user1/zero: unrecognised disk label
==14358== Invalid read of size 8
==14358==    at 0x4E458D0: ped_disk_is_flag_available (in
/usr/lib/libparted.so.2.0.1)
==14358==    by 0x40B676: command_line_get_disk_flag (in /usr/bin/parted)
==14358==    by 0x40674B: ??? (in /usr/bin/parted)
==14358==    by 0x40C8B1: non_interactive_mode (in /usr/bin/parted)
==14358==    by 0x405F47: main (in /usr/bin/parted)
==14358==  Address 0x8 is not stack'd, malloc'd or (recently) free'd
==14358==

Message #10 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Phillip Susi <psusi <at> ubuntu.com>
To: bug-parted <at> gnu.org, 19484-done <at> debbugs.gnu.org
Subject: Re: bug#19484: segfault: 'disk-set' on empty disk
Date: Tue, 13 Jan 2015 11:15:54 -0500

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On 1/1/2015 3:22 PM, Hans Spath wrote:
> $ dd if=/dev/zero of=zero bs=1K count=1 1+0 records in 1+0 records
> out 1024 bytes (1.0 kB) copied, 0.000146148 s, 7.0 MB/s
> 
> $ parted zero disk_set WARNING: You are not superuser.  Watch out
> for permissions. Error: /home/user1/zero: unrecognised disk label
> 
> 
> You found a bug in GNU Parted! Here's what you have to do: [...] 
> Also include any additional information about your setup you 
> consider important.
> 
> Command History: Segmentation fault (core dumped)

Thanks.  It seems I made a silly typeo a while back.  I just pushed
the trivial fix for this.


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