APPLIED: [PATCH 0/2] [focal:linux, focal:linux-azure] linux-azure CIFS DFS oops

[Tim Gardner]

Applied to focal:linux, focal:linux-aws. Thanks.

-rtg

On 7/12/21 6:18 AM, Tim Gardner wrote:
> BugLink: https://bugs.launchpad.net/bugs/1935833
> 
> Patch 1 is scaffolding that enables a clean cherry-pick of patch 2.
> 
> Even though this oops has only been reported against linux-azure, the mainline
> kernel also has the CIFS DFS patches pending and should get these fixes. If applied
> to mainline in time, then linux-azure will simply inherit.
> 
> [Impact]
> 
> A Microsoft customer is reporting a kernel oops when attempting a DFS connection.
> 
> [Fix]
> 
> a52930353eaf443489a350a135c5525a4acbbf56 cifs: handle empty list of targets in cifs_reconnect()
> baf3f08ef4083b76ca67b143e135213a7f941879 cifs: get rid of unused parameter in reconn_setup_dfs_targets()
> 
> The addition of these 2 patches has been confirmed to prevent the oops.
> 
> [Test Case]
> 
> Mount a Windows DFS share
> 
> [Where problems could occur]
> 
> Mounts could continue to fail even though the kernel no longer crashes.
> 
> [Other Info]
> 
> SF: #00313885
> 

-- 
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Tim Gardner
Canonical, Inc