On Tue, Oct 29, 2019 at 10:43:21AM +0100, Greg Kroah-Hartman wrote: > On Tue, Oct 29, 2019 at 05:04:35AM -0400, Sasha Levin wrote: > > On Fri, Oct 18, 2019 at 06:22:05PM -0400, Greg Kroah-Hartman wrote: > > > On Fri, Oct 18, 2019 at 06:05:20PM -0400, Sasha Levin wrote: > > > > From: Johan Hovold <johan@xxxxxxxxxx> > > > > > > > > [ Upstream commit 6353001852776e7eeaab4da78922d4c6f2b076af ] > > > > > > > > The driver failed to stop its read URB on disconnect, something which > > > > could lead to a use-after-free in the completion handler after driver > > > > unbind in case the character device has been closed. > > > > > > > > Fixes: e7389cc9a7ff ("USB: skel_read really sucks royally") > > > > Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> > > > > Link: https://lore.kernel.org/r/20191009170944.30057-3-johan@xxxxxxxxxx > > > > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > > > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> > > > > --- > > > > drivers/usb/usb-skeleton.c | 1 + > > > > 1 file changed, 1 insertion(+) > > > > > > This file does not even get built in the kernel tree, no need to > > > backport anything for it :) > > > > I'll drop it, but you're taking patches for this driver: > > https://lore.kernel.org/patchwork/patch/1140673/ . > > Ah yeah, I probably shouldn't have taken stable backports for that, my > fault. Note that this was all due to https://lkml.kernel.org/r/20190930161205.18803-2-johan@xxxxxxxxxx which fixed a PM bug due to an API change that was backported to stable. I considered it comparable to a documentation fix to make sure that the template driver matched the new API, hence the stable tag. Johan