On Thu, 2020-03-19 at 07:37 +0100, Greg Kroah-Hartman wrote: > On Wed, Mar 18, 2020 at 06:29:06PM -0400, Sasha Levin wrote: > > On Wed, Mar 18, 2020 at 10:09:20PM +0000, Ben Hutchings wrote: > > > This commit (included in 5.6-rc5) seems to be needed for 5.4 and 5.5 > > > branches: > > > > > > commit 6d390e4b5d48ec03bb87e63cf0a2bff5f4e116da > > > Author: yangerkun <yangerkun@xxxxxxxxxx> > > > Date: Wed Mar 4 15:25:56 2020 +0800 > > > > > > locks: fix a potential use-after-free problem when wakeup a waiter > > > > I've queued it up for 5.5 and 5.4, thanks! > > > > > I'm a bit surprised that it hasn't yet been applied, while some fixes > > > from 5.6-rc6 have. > > > > Greg, I wonder if it makes sense to have you push a "Greg is here > > --->" "bookmark" in the form of a tag/branch on linux-stable-rc.git? at > > the very least it'll make it easy to see if something was missed or > > still waiting in the queue. > > To quote Jeff Layton: > > Hi Greg, there is a performance regression with this patch. We're > sorting through potential ways to address it at the moment, but you may > want to hold off until we have a fix for that merged. > > Sorry for the hassle! > > Which is why I dropped it for now. > > I'll go drop it again :) I didn't see any mention of this on the stable list though. I also don't think that a performance regression outweighs the seriousness of the bug being fixed. Ben. -- Ben Hutchings, Software Developer Codethink Ltd https://www.codethink.co.uk/ Dale House, 35 Dale Street Manchester, M1 2HF, United Kingdom
