Encontrado bug en linux, como proceder?

[Hason]

Estaba intentando formatear un usb, con fdisk desde caine 7.0, basado en linux, y tras trastear me a aparecido lo siguiente, que he encontrado un bug:

Me sale cuando borrar particiones, cual borrar, la 1- -1., no entiendo, si pulso 1 no hace nada, si pulso -1 da el error creo que es, me pasa con todos los discos y memorias.

1: fdisk() [0x404101]
You found a bug in GNU Fdisk.


Sabeis algo de esto, o envio el bug, no se de esto.

El texto completo:

Expert command (m for help): m                                           
Command action
   b   move beginning of data in a partition

c   change number of cylinders
   e   list extended partitions

f   fix partition order
   g   create an IRIX (SGI) partition table

h   change number of heads
   m   print this menu
   p   print the partition table

q   quit without saving changes
 
r   return to the main menu
 
s   change number of sectors/track
   
v   verify the partition table
 
w   write table to disk and exit


Expert command (m for help):b 
Partition number (1--1): 1                                               

Error: Partition doesn't exist.


Expert command (m for help): b                                         

Partition number (1--1): -1                                               

New beginning of data: 1 

Backtrace has 11 calls on stack:

11: /lib/x86_64-linux-gnu/libparted.so.0(ped_assert+0x31) [0x7ff4b92694b1]
 
10: /lib/x86_64-linux-gnu/libparted.so.0(+0x127ae) [0x7ff4b926c7ae]

9: /lib/x86_64-linux-gnu/libparted.so.0(ped_disk_set_partition_geom+0x157) [0x7ff4b926f7b7]
 
8: fdisk() [0x40be5b]

7: fdisk() [0x405142]
 
6: fdisk() [0x40f30e]

5: fdisk() [0x4058dd]

4: fdisk() [0x40f576]

3: fdisk() [0x408180]
 
2: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7ff4b8a47f45]

1: fdisk() [0x404101]
You found a bug in GNU Fdisk.



This may have been fixed in the last version of GNU Parted that you can find at:


http://ftp.gnu.org/gnu/parted/

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 email:

bug-parted@gnu.org
or (preferably) file a bug report at:


http://parted.alioth.debian.org/bugs/

Your report should contain the version of this release (1.2.5) along with the
error message below, the output of
parted DEVICE unit co print unit s print
and additional information about your setup you consider important.

Assertion (part->num != -1) at ../../libparted/disk.c:917 in function
_partition_align() failed.


Muchas gracias por vuestra atencion.
Saludos.