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

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: inbox-527 <at> hans-spath.de
Subject: bug#19484: closed (Re: bug#19484: segfault: 'disk-set' on empty disk)
Date: Tue, 13 Jan 2015 16:17:03 +0000

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Your bug report

#19484: segfault: 'disk-set' on empty disk

which was filed against the parted package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 19484 <at> debbugs.gnu.org.

-- 
19484: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19484
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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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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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==

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