Ubuntu
linux-restricted-modules-2.6.24 package

iwlist can make network tools unusable when it crash

Bug #48276 reported by Alexandre Vassalotti
4
Affects Status Importance Assigned to Milestone
linux-restricted-modules-2.6.24 (Ubuntu)
Invalid
Medium
Unassigned

Bug Description

Binary package hint: wireless-tools

On a computer running Dapper with an Atheros based wireless card, if `iwlist' is asked to scan on a desactivated device, `iwlist' segfault. After the segfault, network tools, like `ifconfig', freeze when they're invoked.

# deactivate, or deconfigure ath0 before
$ iwlist ath0 scan
Segmentation fault
$ ifconfig
# the tty freeze

Revision history for this message
Luke Yelavich (themuso) wrote : Confirmed here with latest kernel and restricted modules.

I get the same thing here. Here is an output from dmesg that contains a kernel oops. I feel however that this could be due to the binary blob in the module.

Alexandre Vassalotti (avassalotti)
Changed in wireless-tools:
status: Unconfirmed → Confirmed
Revision history for this message
Scott James Remnant (Canonical) (canonical-scott) wrote :

This is nearly always a result of the kernel driver returning invalid data, and is actually the driver segfaulting ... you'll probably find a matching oops in dmesg

Revision history for this message
Timo Aaltonen (tjaalton) wrote :

Is this an issue with a later release, like 7.10 or Hardy?

Changed in linux-restricted-modules-2.6.17:
status: Confirmed → Incomplete
Revision history for this message
Timo Aaltonen (tjaalton) wrote :

Hmm, the bug is very old, closing on the assumption that it has been fixed. Reopen if you can reproduce it with Hardy, thanks!

Changed in linux-restricted-modules-2.6.24:
status: Incomplete → Invalid
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