Tested-by: Florian Wolters <[email protected]> I have tested this patch applied to 4.4.113 with positive result within the fli4l project.
On 01/29/2018 01:57 PM, Greg Kroah-Hartman wrote: > 4.4-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Felix Fietkau <[email protected]> > > > [ Upstream commit ad23b750933ea7bf962678972a286c78a8fa36aa ] > > Commit "net: igmp: Use correct source address on IGMPv3 reports" > introduced a check to validate the source address of locally generated > IGMPv3 packets. > Instead of checking the local interface address directly, it uses > inet_ifa_match(fl4->saddr, ifa), which checks if the address is on the > local subnet (or equal to the point-to-point address if used). > > This breaks for point-to-point interfaces, so check against > ifa->ifa_local directly. > > Cc: Kevin Cernekee <[email protected]> > Fixes: a46182b00290 ("net: igmp: Use correct source address on IGMPv3 > reports") > Reported-by: Sebastian Gottschall <[email protected]> > Signed-off-by: Felix Fietkau <[email protected]> > Signed-off-by: David S. Miller <[email protected]> > Signed-off-by: Greg Kroah-Hartman <[email protected]> > --- > net/ipv4/igmp.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > --- a/net/ipv4/igmp.c > +++ b/net/ipv4/igmp.c > @@ -338,7 +338,7 @@ static __be32 igmpv3_get_srcaddr(struct > return htonl(INADDR_ANY); > > for_ifa(in_dev) { > - if (inet_ifa_match(fl4->saddr, ifa)) > + if (fl4->saddr == ifa->ifa_local) > return fl4->saddr; > } endfor_ifa(in_dev); > >
