Re: [PATCH net v2 2/2] selftests: net: add test for IPv4 route with loopback IPv6 nexthop

[Ido Schimmel]

On Mon, Mar 02, 2026 at 01:11:29PM +0800, Jiayuan Chen wrote:
> From: Jiayuan Chen <jiayuan.chen@xxxxxxxxxx>
> 
> Add a regression test for a panic triggered when an IPv4 route
> references a loopback IPv6 nexthop object. Without the fix, this
> sequence causes a NULL pointer dereference in __mkroute_output()
> because nhc_pcpu_rth_output is not allocated for the nexthop.
> 
> ./fib_nexthops.sh
> Tests passed: 249
> Tests failed:   0
> Tests skipped:  2
> 
> Signed-off-by: Jiayuan Chen <jiayuan.chen@xxxxxxxxxx>

Reviewed-by: Ido Schimmel <idosch@xxxxxxxxxx>