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bug#53151: Bug: Overlapping Partitions

From: AE x Lemur
Subject: bug#53151: Bug: Overlapping Partitions
Date: Sun, 9 Jan 2022 14:50:55 -0500

I think I found a bug in v3.4 of GNU Parted.

This was my issue, put in removable media that had old Root and Home labelled partitions but they were mounted at /media/USER/xxxx.  I wanted to format and i got an error about overlapping partitions.

I used sfdisk to check my sectors start and end.

I outputted the partition table data to a text file and edited the overlap as I did find one on /dev/sdb. I used sfdisk -d /dev/sdb > ~/Desktop/sdb-backup.txt

After editing this text file to fix the overlap as my sdb1 end overlapped my sdb2 start, i re fed the new partition data back in with

sfdisk /dev/sdb < ~/Desktop/sdb-backup.txt

After being confident i fixed the overlap that was causing Parteds GUI to not open and the partitions were resized after feeding new adjusted data sectors to the disks with sfdisk,

I got this print out when using a command: parted /dev/sdb unit s print  to confirm the changes took place.  My terminal spit this out

Backtrace has 14 calls on stack:
  14: /lib/x86_64-linux-gnu/libparted.so.2(ped_assert+0x4f) [0x7f15143c3c8f]
  13: /lib/x86_64-linux-gnu/libparted.so.2(+0x2654c) [0x7f15143db54c]
  12: /lib/x86_64-linux-gnu/libparted.so.2(+0x136ba) [0x7f15143c86ba]
  11: /lib/x86_64-linux-gnu/libparted.so.2(ped_disk_add_partition+0x1f0) [0x7f15143c8f90]
  10: /lib/x86_64-linux-gnu/libparted.so.2(+0x26f29) [0x7f15143dbf29]
  9: /lib/x86_64-linux-gnu/libparted.so.2(+0x270dd) [0x7f15143dc0dd]
  8: /lib/x86_64-linux-gnu/libparted.so.2(+0x26f54) [0x7f15143dbf54]
  7: /lib/x86_64-linux-gnu/libparted.so.2(+0x271cd) [0x7f15143dc1cd]
  6: /lib/x86_64-linux-gnu/libparted.so.2(ped_disk_new+0x48) [0x7f15143c8a18]
  5: parted(+0x8a1d) [0x55ae5016da1d]
  4: parted(non_interactive_mode+0xb8) [0x55ae50173378]
  3: parted(main+0x116d) [0x55ae5016bbdd]
  2: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xcd) [0x7f151418b7ed]
  1: parted(_start+0x2a) [0x55ae5016bd6a]

You found a bug in GNU Parted! Here's what you have to do:

Don't panic! The bug has most likely not affected any of your data.
Help us to fix this bug by doing the following:

Check whether the bug has already been fixed by checking
the last version of GNU Parted that you can find at:


Please check this version prior to bug reporting.

If this has not been fixed yet or if you don't know how to check,
please visit the GNU Parted website:


for further information.

Your report should contain the version of this release (3.4)
along with the error message below, the output of

parted DEVICE unit co print unit s print

and the following history of commands you entered.
Also include any additional information about your setup you
consider important.

Assertion (metadata_length > 0) at ../../../libparted/labels/dos.c:2359 in function add_logical_part_metadata() failed.

zsh: IOT instruction  sudo parted /dev/sdb print unit s print unit chs print

Please advise on how I fix this bug or review v3.4 files and patch the bug for future versions.
Let me know if i was first to report this error in v3.4, not for reward but for personal pride and an ability to show off an email.

Brandon Thomas

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