Request to cherry-pick 3db09e762dc7 to 4.14+

Request to cherry-pick 3db09e762dc7 to 4.14+

[Robert Kolchmeyer]

Hi all,

Commit 3db09e762dc79584a69c10d74a6b98f89a9979f8 upstream ("net/sched:
cls_u32: fix netns refcount changes in u32_change()") fixes a crash
and seems like a good candidate for stable trees.

The change fixes 35c55fc156d8 ("cls_u32: use tcf_exts_get_net() before
call_rcu()"), which was added in 4.14, so I think it might make sense
to cherry-pick the fix to 4.14+.

Let me know what you think.

Thanks,
-Robert

Re: Request to cherry-pick 3db09e762dc7 to 4.14+

[Greg KH]

On Fri, Apr 22, 2022 at 04:39:01PM -0700, Robert Kolchmeyer wrote:
> Hi all,
> 
> Commit 3db09e762dc79584a69c10d74a6b98f89a9979f8 upstream ("net/sched:
> cls_u32: fix netns refcount changes in u32_change()") fixes a crash
> and seems like a good candidate for stable trees.
> 
> The change fixes 35c55fc156d8 ("cls_u32: use tcf_exts_get_net() before
> call_rcu()"), which was added in 4.14, so I think it might make sense
> to cherry-pick the fix to 4.14+.

Did not apply to 4.14.y or 4.19.y, so can you please provide a working
backport for those trees?

Queued up now for the other trees.

thanks,

greg k-h

Re: Request to cherry-pick 3db09e762dc7 to 4.14+

[Robert Kolchmeyer]

> Did not apply to 4.14.y or 4.19.y, so can you please provide a working
> backport for those trees?

Sure thing, I'll give the backports a try.

> Queued up now for the other trees.

Thank you very much!

-Robert

Re: Request to cherry-pick 3db09e762dc7 to 4.14+

[Robert Kolchmeyer]

I posted the 4.14 and 4.19 backports for review:

https://lore.kernel.org/stable/20220428232605.1231397-1-rkolchmeyer@google.com/T/#u
https://lore.kernel.org/stable/20220428232534.1230905-1-rkolchmeyer@google.com/T/#u

Thanks,
-Robert

Re: Request to cherry-pick 3db09e762dc7 to 4.14+

[Greg KH]

On Thu, Apr 28, 2022 at 04:32:25PM -0700, Robert Kolchmeyer wrote:
> I posted the 4.14 and 4.19 backports for review:
> 
> https://lore.kernel.org/stable/20220428232605.1231397-1-rkolchmeyer@google.com/T/#u
> https://lore.kernel.org/stable/20220428232534.1230905-1-rkolchmeyer@google.com/T/#u

Both now queued up, thanks!

greg k-h