Public bug reported:

[Impact]
When using DW5823E WWAN modem (iosm kernel module) with IPSec (xfrm kernel 
module), the system will eventually hang after using the network.

[Fix]
The upstream fix is still under review here:
https://lore.kernel.org/netdev/[email protected]/

Out of the urgency, we'd apply this patch to be an Ubuntu sauce patch
into Noble 6.8.

[Test Plan]
1. Install the latest Ubuntu oem / public image on the system with DW5823e WWAN 
card
2. insert the SIM card into the GSM modem and establish a connection to the GSM 
network
3. setting up an IPSec tunnel (through the XFRM kernel module).
4. launching a browser, e.g. Firefox, and running any HTML page on the remote 
side (i.e. tunnel communication), even a 'ping' through tunnel will cause the 
issue

[Where problems could occur]
May cause regression.

** Affects: hwe-next
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Invalid

** Affects: linux (Ubuntu Noble)
     Importance: Undecided
     Assignee: En-Wei Wu (rickywu)
         Status: In Progress


** Tags: oem-priority originate-from-2078430 somerville

** Also affects: linux (Ubuntu Noble)
   Importance: Undecided
       Status: New

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

** Changed in: linux (Ubuntu Noble)
       Status: New => In Progress

** Changed in: linux (Ubuntu Noble)
     Assignee: (unassigned) => En-Wei Wu (rickywu)

** Tags added: oem-priority originate-from-2078430 somerville

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https://bugs.launchpad.net/bugs/2085431

Title:
  System hang when using DW5823E WWAN on Arches 15

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