Re: [PATCH] net: ipv4: fix regression in local-broadcast routes

[Chanho Min <chanho.min@lge.com>]

On Tue, Dec 23, 2025 at 08:44:32AM +0100, Greg KH wrote:
> On Tue, Dec 23, 2025 at 03:59:11PM +0900, Chanho Min wrote:
> > From: Oscar Maes <oscmaes92@gmail.com>
> > 
> > [ Upstream commit 5189446ba995556eaa3755a6e875bc06675b88bd ]
> > 
> > Commit 9e30ecf23b1b ("net: ipv4: fix incorrect MTU in broadcast routes")
> > introduced a regression where local-broadcast packets would have their
> > gateway set in __mkroute_output, which was caused by fi = NULL being
> > removed.
> > 
> > Fix this by resetting the fib_info for local-broadcast packets. This
> > preserves the intended changes for directed-broadcast packets.
> > 
> > Cc: stable@vger.kernel.org
> > Fixes: 9e30ecf23b1b ("net: ipv4: fix incorrect MTU in broadcast routes")
> > Reported-by: Brett A C Sheffield <bacs@librecast.net>
> > Closes: https://lore.kernel.org/regressions/20250822165231.4353-4-bacs@librecast.net
> > Signed-off-by: Oscar Maes <oscmaes92@gmail.com>
> > Reviewed-by: David Ahern <dsahern@kernel.org>
> > Link: https://patch.msgid.link/20250827062322.4807-1-oscmaes92@gmail.com
> > Signed-off-by: Paolo Abeni <pabeni@redhat.com>
> > Signed-off-by: Sasha Levin <sashal@kernel.org>
> > ---
> >  net/ipv4/route.c | 10 +++++++---
> >  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> You forgot to sign off on this :(
> 
> Also, what tree do you want this backported to?
> 
> thanks,
> 
> greg k-h


Please ignore this patch. It was sent to the list by mistake.

Sorry for the noise.

Thanks,
Chanho Min