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

[Greg KH <gregkh@linuxfoundation.org>]

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