[Bug 1813869] Missing required logs.

This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1813869

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
Status: New => Incomplete

** Tags added: xenial

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https://bugs.launchpad.net/bugs/1813869

Title:
Redpine: Driver crash with network-manager 1.10 and above

Status in linux package in Ubuntu:
Incomplete

Bug description:
SRU Justification:
------------------

Impact:
-------
Kernel crash upon inserting Redpine driver

Test case:
----------
1) Install network-manager v(1.10) snap.
2) Insert Redpine modules.
3) Observe the behavior.

Result:
-------
Redpine driver crashes the entire kernel and below is the crash log.
... skipping ...
[ 49.130185] BUG: unable to handle kernel NULL pointer dereference at 0000000000000134
[ 49.138969] IP: [<ffffffffc0517c03>] rsi_prepare_mgmt_desc+0xd3/0x2d0 [ven_rsi_91x]
[ 49.244030] CPU: 0 PID: 31 Comm: kworker/u4:1 Not tainted 4.4.0-139-generic #165-Ubuntu
[ 49.252988] Hardware name: Dell Inc. Edge Gateway 3001/, BIOS 01.00.00 04/17/2017
[ 49.261374] Workqueue: rsi_scan_worker rsi_scan_start [ven_rsi_91x]
[ 49.268385] task: ffff880078538cc0 ti: ffff8800785e4000 task.ti: ffff8800785e4000
[ 49.276765] rsi_prepare_mgmt_desc+0xd3/0x2d0 [ven_rsi_91x]
[ 49.387307] [<ffffffffc0516457>] rsi_send_probe_request+0x2c7/0x350 [ven_rsi_91x]
[ 49.395784] [<ffffffffc0516702>] rsi_scan_start+0x222/0x380 [ven_rsi_91x]
[ 49.403486] [<ffffffff818530c1>] ? __schedule+0x301/0x7f0
[ 49.409633] [<ffffffff8109ee4b>] process_one_work+0x16b/0x490
[ 49.416164] [<ffffffff8109f1bb>] worker_thread+0x4b/0x4d0
[ 49.422306] [<ffffffff8109f170>] ? process_one_work+0x490/0x490
[ 49.429032] [<ffffffff810a5587>] kthread+0xe7/0x100
[ 49.434589] [<ffffffff818530c1>] ? __schedule+0x301/0x7f0
[ 49.440731] [<ffffffff810a54a0>] ? kthread_create_on_node+0x1e0/0x1e0
[ 49.448042] [<ffffffff81857bf5>] ret_from_fork+0x55/0x80
[ 49.454086] [<ffffffff810a54a0>] ? kthread_create_on_node+0x1e0/0x1e0

Root cause analysis:
--------------------
In nm-1.10 and above versions, MAC spoof is enabled by default. In Redpine
driver, this handling is missed. Hence, Added the fix for the same.

Fix:
----
Copied the Custom MAC address into driver global structure.

Regression Petential:
---------------------
This is a very direct issue Since the driver is crashing upon inserting the
modules. we ran the multiple times insertion and deletion of modules and connected
to third-party AP, did data transfer.

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