[pkg-cryptsetup-devel] Bug#513596: cryptsetup: A patch for this issue

[Pierre Dinh-van]

Package: cryptsetup
Version: 2:1.0.6-7
Followup-For: Bug #513596


I just looked in the source, and the problem comes from lib/setup.c where
it's explicitly denied to remove a key with itselfs (keyIndex == openedIndex).

The attached patch removes this extra check. I rebuild the package and installed
it, and it seems to work fine, I'm able to have an unusable luks partition :

root at pierre:/tmp# cryptsetup luksDump /dev/mapper/pierre-testluks
LUKS header information for /dev/mapper/pierre-testluks

Version:       	1
Cipher name:   	aes
Cipher mode:   	cbc-essiv:sha256
Hash spec:     	sha1
Payload offset:	2056
MK bits:       	256
MK digest:     	2b ba 0b 5a f9 cb 49 57 f6 db 7e cd 94 a6 21 fb 48 83 e3 02 
MK salt:       	58 89 47 04 76 85 e3 77 75 09 2e eb 41 e2 f7 18 
               	8e 9f 27 03 38 a0 94 87 5e 95 1d fa 98 80 e3 9d 
MK iterations: 	10
UUID:          	1defedc2-a202-46fe-81ca-5ddbf997a891

Key Slot 0: DISABLED
Key Slot 1: DISABLED
Key Slot 2: DISABLED
Key Slot 3: DISABLED
Key Slot 4: DISABLED
Key Slot 5: DISABLED
Key Slot 6: DISABLED
Key Slot 7: DISABLED

I didn't noticed any side effect for now...


-- System Information:
Debian Release: 5.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.18-6-amd64 (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages cryptsetup depends on:
ii  dmsetup                      2:1.02.27-4 The Linux Kernel Device Mapper use
ii  libc6                        2.7-18      GNU C Library: Shared libraries
ii  libdevmapper1.02.1           2:1.02.27-4 The Linux Kernel Device Mapper use
ii  libpopt0                     1.14-4      lib for parsing cmdline parameters
ii  libuuid1                     1.41.3-1    universally unique id library

cryptsetup recommends no packages.

Versions of packages cryptsetup suggests:
ii  dosfstools                    3.0.1-1    utilities for making and checking 
ii  initramfs-tools [linux-initra 0.92o      tools for generating an initramfs
ii  udev                          0.125-7    /dev/ and hotplug management daemo

-- no debconf information
-------------- next part --------------
A non-text attachment was scrubbed...
Name: cryptsetup-1.0.6-bug513596.patch
Type: text/x-diff
Size: 578 bytes
Desc: not available
Url : http://lists.alioth.debian.org/pipermail/pkg-cryptsetup-devel/attachments/20090130/11c04d9b/attachment.patch