oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=/,mems_allowed=0,oom_memcg=/syz0,task_memcg=/syz0,task=syz-executor.0,pid=6765,uid=0 Memory cgroup out of memory: Killed process 6765 (syz-executor.0) total-vm:42220kB, anon-rss:360kB, file-rss:772kB, shmem-rss:0kB, UID:0 pgtables:56kB oom_score_adj:0 unregister_netdevice: waiting for syz_tun to become free. Usage count = 10 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_hold include/linux/netdevice.h:4429 [inline] dst_init+0xbc/0x3e4 net/core/dst.c:52 dst_alloc+0x118/0x168 net/core/dst.c:93 rt_dst_alloc net/ipv4/route.c:1651 [inline] __mkroute_output net/ipv4/route.c:2655 [inline] ip_route_output_key_hash_rcu+0x102c/0x1dfc net/ipv4/route.c:2875 ip_route_output_key_hash+0x154/0x260 net/ipv4/route.c:2705 __ip_route_output_key include/net/route.h:169 [inline] ip_route_output_flow+0x3c/0x160 net/ipv4/route.c:2932 ip_route_output_key include/net/route.h:179 [inline] geneve_link_config+0x15c/0x518 drivers/net/geneve.c:1622 geneve_newlink+0x1ac/0x204 drivers/net/geneve.c:1680 rtnl_newlink_create+0x28c/0x9ac net/core/rtnetlink.c:3840 __rtnl_newlink net/core/rtnetlink.c:3957 [inline] rtnl_newlink+0x11a0/0x15e8 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6985 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x694/0x8c4 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x648/0x930 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] __sys_sendto+0x36c/0x4f4 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2209 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_tracker_alloc include/linux/netdevice.h:4412 [inline] netdev_get_by_index+0x88/0xe4 net/core/dev.c:1008 fib6_nh_init+0x198/0x1960 net/ipv6/route.c:3601 ip6_route_info_create_nh+0x11c/0x98c net/ipv6/route.c:3901 ip6_route_add+0x8c/0x1e4 net/ipv6/route.c:3953 addrconf_prefix_route net/ipv6/addrconf.c:2488 [inline] addrconf_add_linklocal+0x390/0x5d4 net/ipv6/addrconf.c:3313 addrconf_addr_gen+0x38c/0x464 net/ipv6/addrconf.c:3442 addrconf_init_auto_addrs+0x488/0x8cc net/ipv6/addrconf.c:-1 addrconf_notify+0x8ac/0xd14 net/ipv6/addrconf.c:3740 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453 call_netdevice_notifiers_info net/core/dev.c:2230 [inline] call_netdevice_notifiers_extack net/core/dev.c:2268 [inline] call_netdevice_notifiers net/core/dev.c:2282 [inline] __dev_notify_flags+0x218/0x464 net/core/dev.c:-1 netif_change_flags+0xd0/0x15c net/core/dev.c:9804 do_setlink+0xa58/0x3658 net/core/rtnetlink.c:3158 rtnl_changelink net/core/rtnetlink.c:3776 [inline] __rtnl_newlink net/core/rtnetlink.c:3935 [inline] rtnl_newlink+0x1104/0x15e8 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_tracker_alloc include/linux/netdevice.h:4412 [inline] netdev_get_by_index+0x88/0xe4 net/core/dev.c:1008 fib6_nh_init+0x198/0x1960 net/ipv6/route.c:3601 ip6_route_info_create_nh+0x11c/0x98c net/ipv6/route.c:3901 addrconf_f6i_alloc+0x1c4/0x378 net/ipv6/route.c:4693 ipv6_add_addr+0x458/0xdb8 net/ipv6/addrconf.c:1126 addrconf_add_linklocal+0x230/0x5d4 net/ipv6/addrconf.c:3311 addrconf_addr_gen+0x38c/0x464 net/ipv6/addrconf.c:3442 addrconf_init_auto_addrs+0x488/0x8cc net/ipv6/addrconf.c:-1 addrconf_notify+0x8ac/0xd14 net/ipv6/addrconf.c:3740 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453 call_netdevice_notifiers_info net/core/dev.c:2230 [inline] call_netdevice_notifiers_extack net/core/dev.c:2268 [inline] call_netdevice_notifiers net/core/dev.c:2282 [inline] __dev_notify_flags+0x218/0x464 net/core/dev.c:-1 netif_change_flags+0xd0/0x15c net/core/dev.c:9804 do_setlink+0xa58/0x3658 net/core/rtnetlink.c:3158 rtnl_changelink net/core/rtnetlink.c:3776 [inline] __rtnl_newlink net/core/rtnetlink.c:3935 [inline] rtnl_newlink+0x1104/0x15e8 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_tracker_alloc include/linux/netdevice.h:4412 [inline] netdev_get_by_index+0x88/0xe4 net/core/dev.c:1008 fib6_nh_init+0x198/0x1960 net/ipv6/route.c:3601 ip6_route_info_create_nh+0x11c/0x98c net/ipv6/route.c:3901 ip6_route_add+0x8c/0x1e4 net/ipv6/route.c:3953 addrconf_add_mroute net/ipv6/addrconf.c:2552 [inline] addrconf_add_dev+0x1ec/0x2e4 net/ipv6/addrconf.c:2570 addrconf_dev_config net/ipv6/addrconf.c:3479 [inline] addrconf_init_auto_addrs+0x3fc/0x8cc net/ipv6/addrconf.c:3567 addrconf_notify+0x8ac/0xd14 net/ipv6/addrconf.c:3740 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453 call_netdevice_notifiers_info net/core/dev.c:2230 [inline] call_netdevice_notifiers_extack net/core/dev.c:2268 [inline] call_netdevice_notifiers net/core/dev.c:2282 [inline] __dev_notify_flags+0x218/0x464 net/core/dev.c:-1 netif_change_flags+0xd0/0x15c net/core/dev.c:9804 do_setlink+0xa58/0x3658 net/core/rtnetlink.c:3158 rtnl_changelink net/core/rtnetlink.c:3776 [inline] __rtnl_newlink net/core/rtnetlink.c:3935 [inline] rtnl_newlink+0x1104/0x15e8 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6985 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_tracker_alloc include/linux/netdevice.h:4412 [inline] netdev_get_by_index+0x88/0xe4 net/core/dev.c:1008 fib6_nh_init+0x198/0x1960 net/ipv6/route.c:3601 ip6_route_info_create_nh+0x11c/0x98c net/ipv6/route.c:3901 ip6_route_add+0x8c/0x1e4 net/ipv6/route.c:3953 addrconf_prefix_route net/ipv6/addrconf.c:2488 [inline] fixup_permanent_addr net/ipv6/addrconf.c:3598 [inline] addrconf_permanent_addr+0x53c/0x898 net/ipv6/addrconf.c:3622 addrconf_notify+0x79c/0xd14 net/ipv6/addrconf.c:3694 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453 call_netdevice_notifiers_info net/core/dev.c:2230 [inline] call_netdevice_notifiers_extack net/core/dev.c:2268 [inline] call_netdevice_notifiers net/core/dev.c:2282 [inline] __dev_notify_flags+0x218/0x464 net/core/dev.c:-1 netif_change_flags+0xd0/0x15c net/core/dev.c:9804 do_setlink+0xa58/0x3658 net/core/rtnetlink.c:3158 rtnl_changelink net/core/rtnetlink.c:3776 [inline] __rtnl_newlink net/core/rtnetlink.c:3935 [inline] rtnl_newlink+0x1104/0x15e8 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6985 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x694/0x8c4 net/netlink/af_netlink.c:1344 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_hold include/linux/netdevice.h:4429 [inline] fib_check_nh_nongw net/ipv4/fib_semantics.c:1263 [inline] fib_check_nh+0x974/0x1510 net/ipv4/fib_semantics.c:1283 fib_create_info+0x1af0/0x2944 net/ipv4/fib_semantics.c:1503 fib_table_insert+0xac/0x1398 net/ipv4/fib_trie.c:1212 fib_magic+0x250/0x31c net/ipv4/fib_frontend.c:1134 fib_add_ifaddr+0x33c/0x4f8 net/ipv4/fib_frontend.c:1178 fib_netdev_event+0x35c/0x4a0 net/ipv4/fib_frontend.c:1516 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453 call_netdevice_notifiers_info net/core/dev.c:2230 [inline] call_netdevice_notifiers_extack net/core/dev.c:2268 [inline] call_netdevice_notifiers net/core/dev.c:2282 [inline] __dev_notify_flags+0x218/0x464 net/core/dev.c:-1 netif_change_flags+0xd0/0x15c net/core/dev.c:9804 do_setlink+0xa58/0x3658 net/core/rtnetlink.c:3158 rtnl_changelink net/core/rtnetlink.c:3776 [inline] __rtnl_newlink net/core/rtnetlink.c:3935 [inline] rtnl_newlink+0x1104/0x15e8 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6985 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x694/0x8c4 net/netlink/af_netlink.c:1344 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_hold include/linux/netdevice.h:4429 [inline] fib_check_nh_nongw net/ipv4/fib_semantics.c:1263 [inline] fib_check_nh+0x974/0x1510 net/ipv4/fib_semantics.c:1283 fib_create_info+0x1af0/0x2944 net/ipv4/fib_semantics.c:1503 fib_table_insert+0xac/0x1398 net/ipv4/fib_trie.c:1212 fib_magic+0x250/0x31c net/ipv4/fib_frontend.c:1134 fib_add_ifaddr+0x2ec/0x4f8 net/ipv4/fib_frontend.c:1171 fib_netdev_event+0x35c/0x4a0 net/ipv4/fib_frontend.c:1516 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453 call_netdevice_notifiers_info net/core/dev.c:2230 [inline] call_netdevice_notifiers_extack net/core/dev.c:2268 [inline] call_netdevice_notifiers net/core/dev.c:2282 [inline] __dev_notify_flags+0x218/0x464 net/core/dev.c:-1 netif_change_flags+0xd0/0x15c net/core/dev.c:9804 do_setlink+0xa58/0x3658 net/core/rtnetlink.c:3158 rtnl_changelink net/core/rtnetlink.c:3776 [inline] __rtnl_newlink net/core/rtnetlink.c:3935 [inline] rtnl_newlink+0x1104/0x15e8 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6985 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x694/0x8c4 net/netlink/af_netlink.c:1344 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_tracker_alloc include/linux/netdevice.h:4412 [inline] netdev_get_by_index+0x88/0xe4 net/core/dev.c:1008 fib6_nh_init+0x198/0x1960 net/ipv6/route.c:3601 ip6_route_info_create_nh+0x11c/0x98c net/ipv6/route.c:3901 addrconf_f6i_alloc+0x1c4/0x378 net/ipv6/route.c:4693 ipv6_add_addr+0x458/0xdb8 net/ipv6/addrconf.c:1126 inet6_addr_add+0x31c/0xb08 net/ipv6/addrconf.c:3050 inet6_rtm_newaddr+0x730/0xaa8 net/ipv6/addrconf.c:5059 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6985 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x694/0x8c4 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x648/0x930 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] __sys_sendto+0x36c/0x4f4 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2209 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 ref_tracker: netdev@00000000bd4f8a2e has 1/9 users at __netdev_tracker_alloc include/linux/netdevice.h:4400 [inline] netdev_tracker_alloc+0x68/0xb4 include/linux/netdevice.h:4412 fib_create_info+0x229c/0x2944 net/ipv4/fib_semantics.c:1497 fib_table_insert+0xac/0x1398 net/ipv4/fib_trie.c:1212 fib_magic+0x250/0x31c net/ipv4/fib_frontend.c:1134 fib_add_ifaddr+0x118/0x4f8 net/ipv4/fib_frontend.c:1156 fib_inetaddr_event+0x114/0x1d0 net/ipv4/fib_frontend.c:1470 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85 blocking_notifier_call_chain+0x70/0xa0 kernel/notifier.c:380 __inet_insert_ifa+0x8a8/0xa98 net/ipv4/devinet.c:566 inet_rtm_newaddr+0xde8/0x166c net/ipv4/devinet.c:1001 rtnetlink_rcv_msg+0x664/0x97c net/core/rtnetlink.c:6958 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6985 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x694/0x8c4 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x648/0x930 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] __sys_sendto+0x36c/0x4f4 net/socket.c:2206