Re: [PATCH] net: ipv6: fix __rt6_purge_dflt_routers when forwarding is not set on all ifaces

From: David Ahern
Date: Tue Sep 01 2020 - 10:58:01 EST


On 9/1/20 1:56 AM, Eric Dumazet wrote:
> On Tue, Sep 1, 2020 at 8:58 AM Brian Vazquez <brianvv@xxxxxxxxxx> wrote:
>>
>> The problem is exposed when the system has multiple ifaces and
>> forwarding is enabled on a subset of them, __rt6_purge_dflt_routers will
>> clean the default route on all the ifaces which is not desired.
>>
>> This patches fixes that by cleaning only the routes where the iface has
>> forwarding enabled.
>>
>> Fixes: 830218c1add1 ("net: ipv6: Fix processing of RAs in presence of VRF")

are you sure that is a Fixes tag for this problem? looking at that
change it only handles RA for tables beyond the main table; it does not
change the logic of how many or which routes are purged.