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Date: Mon, 20 Jul 2020 02:31:11 +0200 From: Andrew Lunn <andrew@...n.ch> To: Michal Kubecek <mkubecek@...e.cz> Cc: netdev <netdev@...r.kernel.org>, Chris Healy <cphealy@...il.com> Subject: Re: [PATCH ethtool] Fix segfault with cable test and ./configure --disable-netlink On Mon, Jul 20, 2020 at 02:12:51AM +0200, Michal Kubecek wrote: > On Fri, Jul 17, 2020 at 12:05:09AM +0200, Andrew Lunn wrote: > > When the netlink interface code is disabled, a stub version of > > netlink_run_handler() is used. This stub version needs to handle the > > case when there is no possibility for a command to fall back to the > > IOCTL call. The two cable tests commands have no such fallback, and if > > we don't handle this, ethtool tries to jump through a NULL pointer > > resulting in a segfault. > > > > Reported-by: Chris Healy <cphealy@...il.com> > > Signed-off-by: Andrew Lunn <andrew@...n.ch> > > Applied, thank you. I'll need to be more thorough with teseting the > --disable-netlink builds. Hi Michal Yes. We are all focused on retlink, and missed the backwards compatibility issues like this. Andrew
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