Bug#551347: linux-image-2.6.18-6-amd64: attempting USB networking with SonyEricsson W980 causes system reboot

[Alex Tanner <lemoncone2009@googlemail.com>]

Package: linux-image-2.6.18-6-amd64
Version: 2.6.18.dfsg.1-24etch2
Severity: grave
Justification: renders package unusable

NB- With my Gigabyte GA-K8NS rev 2 motherboard (nForce 3 platform),
the problem is reproducible in all available BIOS versions (F15, F19,
F21A).

Inserting a SonyEricsson W980 phone (USB vendor/device=0fce/d0da) into
the USB port and selecting "Phone Mode" in the menu that appears on
the W980 causes an immediate reset of the computer in all the
following scenarios.

1) "blacklist cdc_ether" is specified in /etc/modprobe.d/blacklist (to
prevent autoload of module) then root user runs "modprobe cdc_ether"
2) root user runs "modprobe cdc_acm" AND someone tries to dial a PPP
connection through /dev/ttyACM0 OR /dev/ttyACM1
3) root user runs "modprobe usbserial vendor=0x0fce product=0xd0da"
AND someone tries to dial a PPP connection through /dev/ttyUSB0 OR
/dev/ttyUSB1.