oclHashcat returning incorrect results

[forti]

Just to complete the thread with more informations about configuration.
Here is my test case :

Configuration:
SDK_NAME="AMD-APP-SDK-v2.5-RC2-lnx64.tgz
Ubuntu 11.04
i7 / 8 Go
Linux BigRed 2.6.38-12-generic #51-Ubuntu SMP Wed Sep 28 14:27:32 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
2xATI HD6990

I provide the way I computed the hash from the password in case I made this wrong.
Hash was generated this way using python:

import hashlib
salt = '\x41\x42\x43\x44'
pwd = 'Der5?d3X'
h = hashlib.sha1(salt + pwd).hexdigest().upper()
print h
2DC595158F9EFEE2DF8BB8CC92CD38C61B425167

hashfile contains : 2DC595158F9EFEE2DF8BB8CC92CD38C61B425167:41424344

Command executed :
./oclHashcat64.bin --outfile-format=2 -m 102 --hex-salt ../hashfile -1 '?l?d?u?s' 'De?1?1?1' '?1?1?1'
oclHashcat v0.26 by atom starting...

Digests: 1 entries, 1 unique
Salts: 1 entries, 1 unique
Bitmaps: 8 bits, 256 entries, 0x000000ff mask, 1024 bytes
Platform: AMD compatible platform found
Watchdog: Temperature limit set to 90c
Device #1: Cayman, 1024MB, 0Mhz, 24MCU
Device #2: Cayman, 1024MB, 0Mhz, 24MCU
Device #3: Cayman, 1024MB, 0Mhz, 24MCU
Device #4: Cayman, 1024MB, 0Mhz, 24MCU
NOTE: gpu-accel auto-adjusted to: 32
Device #1: Kernel ./kernels/4098/m0102.Cayman.64.kernel
Device #2: Kernel ./kernels/4098/m0102.Cayman.64.kernel
Device #3: Kernel ./kernels/4098/m0102.Cayman.64.kernel
Device #4: Kernel ./kernels/4098/m0102.Cayman.64.kernel
[s]tatus [p]ause [r]esume [q]uit => s
Status.......: Running
Hash.Type....: sha1($salt.$pass)
Mode.Left....: Mask 'De?1?1?1' (857375)
Mode.Right...: Mask '?1?1?1' (857375)
Speed.GPU*...: 1160.1M/s
Recovered....: 0/1 Digests, 0/1 Salts
Progress.....: 569520881664/735091890625 (77.48%)
Running......: 8 mins, 17 secs
Estimated....: 2 mins, 22 secs
HW.Monitor.#1: 24% GPU, 82c Temp
HW.Monitor.#2: 24% GPU, 83c Temp
HW.Monitor.#3: 24% GPU, 71c Temp
HW.Monitor.#4: 24% GPU, 71c Temp
2dc595158f9efee2df8bb8cc92cd38c61b425167:41424344er5?X:446572353f580000
[s]tatus [p]ause [r]esume [q]uit =>
Status.......: Cracked
Hash.Type....: sha1($salt.$pass)
Mode.Left....: Mask 'De?1?1?1' (857375)
Mode.Right...: Mask '?1?1?1' (857375)
Speed.GPU*...: 1174.1M/s
Recovered....: 1/1 Digests, 1/1 Salts
Progress.....: 610918662144/735091890625 (83.11%)
Running......: 8 mins, 53 secs
Estimated....: 1 min, 45 secs
HW.Monitor.#1: 22% GPU, 82c Temp
HW.Monitor.#2: 21% GPU, 83c Temp
HW.Monitor.#3: 21% GPU, 72c Temp
HW.Monitor.#4: 21% GPU, 71c Temp

Started: Sat Dec 10 22:49:23 2011
Stopped: Sat Dec 10 22:58:17 2011

The bug was quite reproductible using differents masks and passwords/hash combination
It seems also to depends on the length of the mask used.