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ifier_call_chain+0xa6/0x1a0 kernel/notifier.c:173 atomic_notifier_call_chain+0x2e/0x40 kernel/notifier.c:183 call_fib_notifiers+0x173/0x2a0 net/core/fib_notifier.c:35 call_fib6_notifiers+0x4b/0x60 net/ipv6/fib6_notifier.c:22 call_fib6_entry_notifiers+0xfb/0x150 net/ipv6/ip6_fib.c:399 fib6_add_rt2node net/ipv6/ip6_fib.c:1216 [inline] fib6_add+0x20cd/0x3ec0 net/ipv6/ip6_fib.c:1471 __ip6_ins_rt+0x54/0x80 net/ipv6/route.c:1315 ip6_ins_rt+0x96/0xd0 net/ipv6/route.c:1325 __ipv6_dev_ac_inc+0x76f/0xb20 net/ipv6/anycast.c:324 ipv6_sock_ac_join+0x4c1/0x790 net/ipv6/anycast.c:139 do_ipv6_setsockopt.isra.0+0x3908/0x4290 net/ipv6/ipv6_sockglue.c:670 ipv6_setsockopt+0xff/0x180 net/ipv6/ipv6_sockglue.c:944 udpv6_setsockopt+0x68/0xb0 net/ipv6/udp.c:1564 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3149 __sys_setsockopt+0x261/0x4c0 net/socket.c:2130 __do_sys_setsockopt net/socket.c:2146 [inline] __se_sys_setsockopt net/socket.c:2143 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:2143 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45aff9 Fixes: 48bb9eb47b27 ("netdevsim: fib: Add dummy implementation for FIB offload") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Cc: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-17net: xen-netback: hash.c: Use built-in RCU list checkingMadhuparna Bhowmik1-2/+4 list_for_each_entry_rcu has built-in RCU and lock checking. Pass cond argument to list_for_each_entry_rcu. Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com> Acked-by: Wei Liu <wei.liu@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-16sfc: remove duplicated include from efx.cYueHaibing1-1/+0 Remove duplicated include. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15devlink: fix typos in qed documentationJacob Keller1-2/+2 Review of the recently added documentation file for the qed driver noticed a couple of typos. Fix them now. Noticed-by: Michal Kalderon <mkalderon@marvell.com> Fixes: 0f261c3ca09e ("devlink: add a driver-specific file for the qed driver") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15pptp: support sockets bound to an interfaceUlrich Weber1-2/+3 use sk_bound_dev_if for route lookup as already done in most of the other ip_route_output_ports() calls. Since most PPPoA providers use 10.0.0.138 as default gateway IP this will allow connections to multiple PPTP providers with the same IP address over different interfaces. Signed-off-by: Ulrich Weber <ulrich.weber@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15net: bridge: vlan: notify on vlan add/delete/change flagsNikolay Aleksandrov3-18/+99 Now that we can notify, send a notification on add/del or change of flags. Notifications are also compressed when possible to reduce their number and relieve user-space of extra processing, due to that we have to manually notify after each add/del in order to avoid double notifications. We try hard to notify only about the vlans which actually changed, thus a single command can result in multiple notifications about disjoint ranges if there were vlans which didn't change inside. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15net: bridge: vlan: add rtnetlink group and notify supportNikolay Aleksandrov3-0/+92 Add a new rtnetlink group for bridge vlan notifications - RTNLGRP_BRVLAN and add support for sending vlan notifications (both single and ranges). No functional changes intended, the notification support will be used by later patches. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15net: bridge: vlan: add rtm range supportNikolay Aleksandrov2-14/+73 Add a new vlandb nl attribute - BRIDGE_VLANDB_ENTRY_RANGE which causes RTM_NEWVLAN/DELVAN to act on a range. Dumps now automatically compress similar vlans into ranges. This will be also used when per-vlan options are introduced and vlans' options match, they will be put into a single range which is encapsulated in one netlink attribute. We need to run similar checks as br_process_vlan_info() does because these ranges will be used for options setting and they'll be able to skip br_process_vlan_info(). Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15net: bridge: vlan: add del rtm message supportNikolay Aleksandrov1-0/+6 Adding RTM_DELVLAN support similar to RTM_NEWVLAN is simple, just need to map DELVLAN to DELLINK and register the handler. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15net: bridge: vlan: add new rtm message supportNikolay Aleksandrov3-6/+123 Add initial RTM_NEWVLAN support which can only create vlans, operating similar to the current br_afspec(). We will use it later to also change per-vlan options. Old-style (flag-based) vlan ranges are not allowed when using RTM messages, we will introduce vlan ranges later via a new nested attribute which would allow us to have all the information about a range encapsulated into a single nl attribute. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15net: bridge: vlan: add rtm definitions and dump supportNikolay Aleksandrov6-1/+203 This patch adds vlan rtm definitions: - NEWVLAN: to be used for creating vlans, setting options and notifications - DELVLAN: to be used for deleting vlans - GETVLAN: used for dumping vlan information Dumping vlans which can span multiple messages is added now with basic information (vid and flags). We use nlmsg_parse() to validate the header length in order to be able to extend the message with filtering attributes later. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15net: bridge: netlink: add extack error messages when processing vlansNikolay Aleksandrov2-14/+30 Add extack messages on vlan processing errors. We need to move the flags missing check after the "last" check since we may have "last" set but lack a range end flag in the next entry. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2020-01-15net: bridge: vlan: add helpers to check for vlan id/range validityNikolay Aleksandrov2-10/+34 Add helpers to check if a vlan id or range are valid. The range helper must be called when range start or end are detected. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>