On 18 Sep 2019, at 13:10, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:

On Wed, Sep 18, 2019 at 11:17:59AM +0200, Håkon Bugge wrote:

...

Hi Greg,

Commit 00313983cda6 ("RDMA/nldev: provide detailed CM_ID information") is in the following stable releases:

stable/linux-4.17.y stable/linux-4.18.y stable/linux-4.19.y stable/linux-4.20.y stable/linux-5.0.y stable/linux-5.1.y stable/linux-5.2.y stable/linux-5.3.y stable/master

It was part of the 4.17 release, so yes, of course it is in all later releases.

...

It has a potential for a big leak of task_struct's, and if the case is hit, the number of task_struct entries in /proc/slabinfo increases rapidly.

The fix, ed7a01fd3fd7 ("RDMA/restrack: Release task struct which was hold by CM_ID object"), is in the following stable releases:

stable/linux-4.20.y stable/linux-5.0.y stable/linux-5.1.y stable/linux-5.2.y stable/linux-5.3.y stable/master

It was part of the 4.20 release, so yes, it will be in all releases newer than that.

...

Hence, this commit needs to be included in 4-17..4.19.

Given there is only one "active" kernel branch you are looking at here, that means it should only go into 4.19.y, right?

Yes, you are right. I should have read the collateral first, kernel.org/releases.html :-)

Thxs, Håkon