Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.5' (ECDSA) to the list of known hosts. syzkaller login: [ 74.340783][ T8518] IPVS: ftp: loaded support on port[0] = 21 [ 74.452415][ T8518] chnl_net:caif_netlink_parms(): no params data found [ 74.508535][ T8518] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.516724][ T8518] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.527246][ T8518] device bridge_slave_0 entered promiscuous mode [ 74.537221][ T8518] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.544481][ T8518] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.552790][ T8518] device bridge_slave_1 entered promiscuous mode [ 74.574991][ T8518] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.586188][ T8518] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.610232][ T8518] team0: Port device team_slave_0 added [ 74.617964][ T8518] team0: Port device team_slave_1 added [ 74.637636][ T8518] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.644832][ T8518] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 74.670784][ T8518] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.684122][ T8518] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.691089][ T8518] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 74.717640][ T8518] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.746483][ T8518] device hsr_slave_0 entered promiscuous mode [ 74.753281][ T8518] device hsr_slave_1 entered promiscuous mode [ 74.864088][ T8518] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.877099][ T8518] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.887962][ T8518] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.899523][ T8518] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.927273][ T8518] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.934527][ T8518] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.942815][ T8518] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.949900][ T8518] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.000896][ T8518] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.016014][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.028046][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.037355][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.046336][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.060669][ T8518] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.073268][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.084378][ T3011] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.091917][ T3011] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.114716][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.123471][ T3011] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.130509][ T3011] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.139091][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.148010][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.160938][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.180095][ T8518] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.193504][ T8518] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.207118][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.216316][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.225082][ T3011] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.244034][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.251430][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.266958][ T8518] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.289652][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.313047][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.323134][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.330878][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.340159][ T8518] device veth0_vlan entered promiscuous mode [ 75.354681][ T8518] device veth1_vlan entered promiscuous mode [ 75.379704][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.387961][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.396670][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.408960][ T8518] device veth0_macvtap entered promiscuous mode [ 75.420733][ T8518] device veth1_macvtap entered promiscuous mode [ 75.434296][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.449330][ T8518] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.458134][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.467605][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.480712][ T8518] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.488253][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.498287][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.515817][ T8518] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.524975][ T8518] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 75.534321][ T8518] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.543409][ T8518] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.581353][ T282] ================================================================================ [ 75.590942][ T282] UBSAN: shift-out-of-bounds in ./include/net/red.h:310:18 [ 75.598202][ T282] shift exponent 65 is too large for 64-bit type 'long unsigned int' [ 75.606283][ T282] CPU: 0 PID: 282 Comm: kworker/u4:4 Not tainted 5.10.0-rc7-next-20201210-syzkaller #0 [ 75.615904][ T282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.625947][ T282] Workqueue: wg-kex-wg2 wg_packet_handshake_send_worker [ 75.632895][ T282] Call Trace: [ 75.636174][ T282] dump_stack+0x107/0x163 [ 75.640505][ T282] ubsan_epilogue+0xb/0x5a [ 75.644921][ T282] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 75.651701][ T282] ? ktime_get+0x1bf/0x1e0 [ 75.656133][ T282] ? lockdep_hardirqs_on+0x79/0x100 [ 75.661321][ T282] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 75.667029][ T282] ? ktime_get+0x167/0x1e0 [ 75.671442][ T282] red_enqueue.cold+0x1a/0x475 [ 75.676210][ T282] ? red_destroy+0x70/0x70 [ 75.680625][ T282] ? rwlock_bug.part.0+0x90/0x90 [ 75.685581][ T282] __dev_queue_xmit+0x199e/0x2ec0 [ 75.690617][ T282] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 75.695895][ T282] ? __ip6_finish_output+0x4be/0xb80 [ 75.701177][ T282] ? mark_held_locks+0x9f/0xe0 [ 75.705951][ T282] ? rcu_read_lock_bh_held+0x25/0x60 [ 75.711226][ T282] ? ip6_finish_output2+0xdce/0x1710 [ 75.716516][ T282] ip6_finish_output2+0x8cc/0x1710 [ 75.721632][ T282] __ip6_finish_output+0x4be/0xb80 [ 75.726768][ T282] ? ip6_dst_hoplimit+0x430/0x430 [ 75.731811][ T282] ip6_finish_output+0x35/0x200 [ 75.736674][ T282] ip6_output+0x1db/0x520 [ 75.741022][ T282] ip6_local_out+0xaf/0x1a0 [ 75.745522][ T282] udp_tunnel6_xmit_skb+0x6a6/0xba0 [ 75.750716][ T282] send6+0x51a/0xd10 [ 75.754624][ T282] ? send4+0xe60/0xe60 [ 75.758704][ T282] ? memset+0x20/0x40 [ 75.762679][ T282] ? wg_socket_send_buffer_to_peer+0x1b7/0x340 [ 75.768833][ T282] wg_socket_send_buffer_to_peer+0x1f9/0x340 [ 75.775675][ T282] wg_packet_send_handshake_initiation+0x212/0x340 [ 75.782169][ T282] ? wg_packet_queue_free+0x160/0x160 [ 75.787573][ T282] wg_packet_handshake_send_worker+0x18/0x30 [ 75.793544][ T282] process_one_work+0x98d/0x1630 [ 75.798477][ T282] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.803859][ T282] ? rwlock_bug.part.0+0x90/0x90 [ 75.808784][ T282] ? _raw_spin_lock_irq+0x41/0x50 [ 75.813811][ T282] worker_thread+0x64c/0x1120 [ 75.818483][ T282] ? __kthread_parkme+0x13f/0x1e0 [ 75.823499][ T282] ? process_one_work+0x1630/0x1630 [ 75.828711][ T282] kthread+0x3b1/0x4a0 [ 75.832770][ T282] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 75.838682][ T282] ret_from_fork+0x1f/0x30 [ 75.843163][ T282] ================================================================================ [ 75.852480][ T282] Kernel panic - not syncing: panic_on_warn set ... [ 75.859136][ T282] CPU: 0 PID: 282 Comm: kworker/u4:4 Not tainted 5.10.0-rc7-next-20201210-syzkaller #0 [ 75.868746][ T282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.878788][ T282] Workqueue: wg-kex-wg2 wg_packet_handshake_send_worker [ 75.885722][ T282] Call Trace: [ 75.888988][ T282] dump_stack+0x107/0x163 [ 75.893316][ T282] panic+0x343/0x77f [ 75.897203][ T282] ? __warn_printk+0xf3/0xf3 [ 75.901791][ T282] ? ubsan_epilogue+0x3e/0x5a [ 75.906471][ T282] ubsan_epilogue+0x54/0x5a [ 75.910959][ T282] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 75.917711][ T282] ? ktime_get+0x1bf/0x1e0 [ 75.922118][ T282] ? lockdep_hardirqs_on+0x79/0x100 [ 75.927307][ T282] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 75.933020][ T282] ? ktime_get+0x167/0x1e0 [ 75.937452][ T282] red_enqueue.cold+0x1a/0x475 [ 75.942211][ T282] ? red_destroy+0x70/0x70 [ 75.946619][ T282] ? rwlock_bug.part.0+0x90/0x90 [ 75.951622][ T282] __dev_queue_xmit+0x199e/0x2ec0 [ 75.956858][ T282] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 75.964265][ T282] ? __ip6_finish_output+0x4be/0xb80 [ 75.969551][ T282] ? mark_held_locks+0x9f/0xe0 [ 75.974307][ T282] ? rcu_read_lock_bh_held+0x25/0x60 [ 75.979581][ T282] ? ip6_finish_output2+0xdce/0x1710 [ 75.984855][ T282] ip6_finish_output2+0x8cc/0x1710 [ 75.990067][ T282] __ip6_finish_output+0x4be/0xb80 [ 75.995168][ T282] ? ip6_dst_hoplimit+0x430/0x430 [ 76.000185][ T282] ip6_finish_output+0x35/0x200 [ 76.005026][ T282] ip6_output+0x1db/0x520 [ 76.009346][ T282] ip6_local_out+0xaf/0x1a0 [ 76.013858][ T282] udp_tunnel6_xmit_skb+0x6a6/0xba0 [ 76.019050][ T282] send6+0x51a/0xd10 [ 76.022962][ T282] ? send4+0xe60/0xe60 [ 76.027029][ T282] ? memset+0x20/0x40 [ 76.031003][ T282] ? wg_socket_send_buffer_to_peer+0x1b7/0x340 [ 76.037147][ T282] wg_socket_send_buffer_to_peer+0x1f9/0x340 [ 76.043124][ T282] wg_packet_send_handshake_initiation+0x212/0x340 [ 76.049638][ T282] ? wg_packet_queue_free+0x160/0x160 [ 76.055025][ T282] wg_packet_handshake_send_worker+0x18/0x30 [ 76.060990][ T282] process_one_work+0x98d/0x1630 [ 76.065921][ T282] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.071282][ T282] ? rwlock_bug.part.0+0x90/0x90 [ 76.076220][ T282] ? _raw_spin_lock_irq+0x41/0x50 [ 76.081238][ T282] worker_thread+0x64c/0x1120 [ 76.085906][ T282] ? __kthread_parkme+0x13f/0x1e0 [ 76.090917][ T282] ? process_one_work+0x1630/0x1630 [ 76.096108][ T282] kthread+0x3b1/0x4a0 [ 76.100173][ T282] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 76.106056][ T282] ret_from_fork+0x1f/0x30 [ 76.111259][ T282] Kernel Offset: disabled [ 76.115712][ T282] Rebooting in 86400 seconds..