[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.175' (ECDSA) to the list of known hosts. syzkaller login: [ 71.219194][ T8501] IPVS: ftp: loaded support on port[0] = 21 [ 71.311803][ T8501] chnl_net:caif_netlink_parms(): no params data found [ 71.366654][ T8501] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.374594][ T8501] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.382450][ T8501] device bridge_slave_0 entered promiscuous mode [ 71.393164][ T8501] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.401945][ T8501] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.410721][ T8501] device bridge_slave_1 entered promiscuous mode [ 71.432497][ T8501] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.443447][ T8501] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.467675][ T8501] team0: Port device team_slave_0 added [ 71.476205][ T8501] team0: Port device team_slave_1 added [ 71.494637][ T8501] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.501605][ T8501] 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. [ 71.528145][ T8501] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.542610][ T8501] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.549807][ T8501] 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. [ 71.577053][ T8501] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.604930][ T8501] device hsr_slave_0 entered promiscuous mode [ 71.611638][ T8501] device hsr_slave_1 entered promiscuous mode [ 71.718810][ T8501] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.729592][ T8501] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.739899][ T8501] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.751011][ T8501] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.776353][ T8501] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.783834][ T8501] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.791868][ T8501] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.799036][ T8501] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.849114][ T8501] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.862913][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.876855][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.886044][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.895033][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.909376][ T8501] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.921237][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.929995][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.937166][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.954742][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.963202][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.970357][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.995761][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.006059][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.014559][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.015561][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.036375][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.047330][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.068467][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.076780][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.089961][ T8501] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.110275][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.131767][ T8501] device veth0_vlan entered promiscuous mode [ 72.139835][ T3861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.149366][ T3861] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.157445][ T3861] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.171975][ T8501] device veth1_vlan entered promiscuous mode [ 72.192513][ T3861] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.201901][ T3861] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.210434][ T3861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.221831][ T8501] device veth0_macvtap entered promiscuous mode [ 72.232786][ T8501] device veth1_macvtap entered promiscuous mode [ 72.252572][ T8501] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.261722][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.271653][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.284991][ T8501] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.294990][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 72.305777][ T8501] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.315019][ T8501] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.324061][ T8501] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.335134][ T8501] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.376060][ T8501] ================================================================================ [ 72.387011][ T8501] UBSAN: shift-out-of-bounds in ./include/net/red.h:252:22 [ 72.394346][ T8501] shift exponent 96 is too large for 32-bit type 'int' [ 72.401221][ T8501] CPU: 0 PID: 8501 Comm: syz-executor889 Not tainted 5.10.0-syzkaller #0 [ 72.409710][ T8501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.419750][ T8501] Call Trace: [ 72.423030][ T8501] dump_stack+0x107/0x163 [ 72.427368][ T8501] ubsan_epilogue+0xb/0x5a [ 72.431770][ T8501] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 72.438533][ T8501] ? rwlock_bug.part.0+0x90/0x90 [ 72.443467][ T8501] choke_change.cold+0xce/0x115 [ 72.448321][ T8501] ? choke_enqueue+0x1b60/0x1b60 [ 72.453249][ T8501] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.459829][ T8501] ? choke_change+0x1410/0x1410 [ 72.464781][ T8501] qdisc_create+0x4ba/0x13a0 [ 72.469376][ T8501] ? apparmor_capable+0x1d8/0x460 [ 72.474479][ T8501] ? tc_get_qdisc+0xb20/0xb20 [ 72.479143][ T8501] ? __nla_parse+0x3d/0x50 [ 72.483574][ T8501] tc_modify_qdisc+0x4c8/0x1a30 [ 72.488515][ T8501] ? rtnetlink_rcv_msg+0x443/0xb80 [ 72.493615][ T8501] ? qdisc_create+0x13a0/0x13a0 [ 72.498465][ T8501] ? qdisc_create+0x13a0/0x13a0 [ 72.503386][ T8501] rtnetlink_rcv_msg+0x498/0xb80 [ 72.508415][ T8501] ? rtnl_fdb_dump+0xa00/0xa00 [ 72.513257][ T8501] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 72.518741][ T8501] netlink_rcv_skb+0x153/0x420 [ 72.523508][ T8501] ? rtnl_fdb_dump+0xa00/0xa00 [ 72.528258][ T8501] ? netlink_ack+0xab0/0xab0 [ 72.532849][ T8501] ? netlink_deliver_tap+0x2c4/0xc00 [ 72.538143][ T8501] netlink_unicast+0x533/0x7d0 [ 72.542912][ T8501] ? netlink_attachskb+0x870/0x870 [ 72.548011][ T8501] ? _copy_from_iter_full+0x275/0x850 [ 72.553457][ T8501] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.561086][ T8501] ? __phys_addr_symbol+0x2c/0x70 [ 72.566115][ T8501] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.571819][ T8501] ? __check_object_size+0x171/0x3f0 [ 72.577095][ T8501] netlink_sendmsg+0x907/0xe40 [ 72.581864][ T8501] ? netlink_unicast+0x7d0/0x7d0 [ 72.586789][ T8501] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.593035][ T8501] ? netlink_unicast+0x7d0/0x7d0 [ 72.597989][ T8501] sock_sendmsg+0xcf/0x120 [ 72.602405][ T8501] ____sys_sendmsg+0x6e8/0x810 [ 72.607168][ T8501] ? kernel_sendmsg+0x50/0x50 [ 72.611941][ T8501] ? do_recvmmsg+0x6c0/0x6c0 [ 72.616528][ T8501] ? find_held_lock+0x2d/0x110 [ 72.621580][ T8501] ___sys_sendmsg+0xf3/0x170 [ 72.626162][ T8501] ? sendmsg_copy_msghdr+0x160/0x160 [ 72.631458][ T8501] ? _copy_to_user+0xdc/0x150 [ 72.636212][ T8501] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.642504][ T8501] ? sock_do_ioctl+0x1cd/0x2f0 [ 72.647322][ T8501] ? kernel_sendpage_locked+0x100/0x100 [ 72.652869][ T8501] ? __sanitizer_cov_trace_switch+0x63/0xf0 [ 72.658757][ T8501] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.665511][ T8501] ? __fget_light+0x215/0x280 [ 72.670527][ T8501] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.676780][ T8501] __sys_sendmsg+0xe5/0x1b0 [ 72.681274][ T8501] ? __sys_sendmsg_sock+0xb0/0xb0 [ 72.686283][ T8501] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.699258][ T8501] ? syscall_enter_from_user_mode+0x1d/0x50 [ 72.705146][ T8501] do_syscall_64+0x2d/0x70 [ 72.709723][ T8501] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 72.715886][ T8501] RIP: 0033:0x4437b9 [ 72.719769][ T8501] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 72.739467][ T8501] RSP: 002b:00007ffe5255f148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 72.747953][ T8501] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004437b9 [ 72.755933][ T8501] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 72.763908][ T8501] RBP: 00007ffe5255f150 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 72.771877][ T8501] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffe5255f160 [ 72.780029][ T8501] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 72.788184][ T8501] ================================================================================ [ 72.797531][ T8501] Kernel panic - not syncing: panic_on_warn set ... [ 72.804134][ T8501] CPU: 0 PID: 8501 Comm: syz-executor889 Not tainted 5.10.0-syzkaller #0 [ 72.813159][ T8501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.823421][ T8501] Call Trace: [ 72.826831][ T8501] dump_stack+0x107/0x163 [ 72.831164][ T8501] panic+0x343/0x77f [ 72.835137][ T8501] ? __warn_printk+0xf3/0xf3 [ 72.840116][ T8501] ? ubsan_epilogue+0x3e/0x5a [ 72.844786][ T8501] ubsan_epilogue+0x54/0x5a [ 72.849277][ T8501] __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 [ 72.856032][ T8501] ? rwlock_bug.part.0+0x90/0x90 [ 72.861005][ T8501] choke_change.cold+0xce/0x115 [ 72.865951][ T8501] ? choke_enqueue+0x1b60/0x1b60 [ 72.870985][ T8501] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.877215][ T8501] ? choke_change+0x1410/0x1410 [ 72.882076][ T8501] qdisc_create+0x4ba/0x13a0 [ 72.886666][ T8501] ? apparmor_capable+0x1d8/0x460 [ 72.891724][ T8501] ? tc_get_qdisc+0xb20/0xb20 [ 72.896549][ T8501] ? __nla_parse+0x3d/0x50 [ 72.900969][ T8501] tc_modify_qdisc+0x4c8/0x1a30 [ 72.906106][ T8501] ? rtnetlink_rcv_msg+0x443/0xb80 [ 72.911229][ T8501] ? qdisc_create+0x13a0/0x13a0 [ 72.916100][ T8501] ? qdisc_create+0x13a0/0x13a0 [ 72.920940][ T8501] rtnetlink_rcv_msg+0x498/0xb80 [ 72.925957][ T8501] ? rtnl_fdb_dump+0xa00/0xa00 [ 72.930733][ T8501] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 72.936448][ T8501] netlink_rcv_skb+0x153/0x420 [ 72.941203][ T8501] ? rtnl_fdb_dump+0xa00/0xa00 [ 72.945956][ T8501] ? netlink_ack+0xab0/0xab0 [ 72.950531][ T8501] ? netlink_deliver_tap+0x2c4/0xc00 [ 72.955841][ T8501] netlink_unicast+0x533/0x7d0 [ 72.960715][ T8501] ? netlink_attachskb+0x870/0x870 [ 72.965829][ T8501] ? _copy_from_iter_full+0x275/0x850 [ 72.971204][ T8501] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.977435][ T8501] ? __phys_addr_symbol+0x2c/0x70 [ 72.982470][ T8501] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.988187][ T8501] ? __check_object_size+0x171/0x3f0 [ 72.993466][ T8501] netlink_sendmsg+0x907/0xe40 [ 72.998237][ T8501] ? netlink_unicast+0x7d0/0x7d0 [ 73.003407][ T8501] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.009635][ T8501] ? netlink_unicast+0x7d0/0x7d0 [ 73.014564][ T8501] sock_sendmsg+0xcf/0x120 [ 73.018967][ T8501] ____sys_sendmsg+0x6e8/0x810 [ 73.023718][ T8501] ? kernel_sendmsg+0x50/0x50 [ 73.028393][ T8501] ? do_recvmmsg+0x6c0/0x6c0 [ 73.032989][ T8501] ? find_held_lock+0x2d/0x110 [ 73.037758][ T8501] ___sys_sendmsg+0xf3/0x170 [ 73.042421][ T8501] ? sendmsg_copy_msghdr+0x160/0x160 [ 73.047699][ T8501] ? _copy_to_user+0xdc/0x150 [ 73.052383][ T8501] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.058624][ T8501] ? sock_do_ioctl+0x1cd/0x2f0 [ 73.063394][ T8501] ? kernel_sendpage_locked+0x100/0x100 [ 73.069041][ T8501] ? __sanitizer_cov_trace_switch+0x63/0xf0 [ 73.074926][ T8501] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.081151][ T8501] ? __fget_light+0x215/0x280 [ 73.085816][ T8501] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.092065][ T8501] __sys_sendmsg+0xe5/0x1b0 [ 73.096564][ T8501] ? __sys_sendmsg_sock+0xb0/0xb0 [ 73.101588][ T8501] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.107842][ T8501] ? syscall_enter_from_user_mode+0x1d/0x50 [ 73.113725][ T8501] do_syscall_64+0x2d/0x70 [ 73.118126][ T8501] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 73.124009][ T8501] RIP: 0033:0x4437b9 [ 73.128598][ T8501] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 73.148212][ T8501] RSP: 002b:00007ffe5255f148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.156614][ T8501] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004437b9 [ 73.164570][ T8501] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 73.172525][ T8501] RBP: 00007ffe5255f150 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 73.180500][ T8501] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 00007ffe5255f160 [ 73.188486][ T8501] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 73.197522][ T8501] Kernel Offset: disabled [ 73.202067][ T8501] Rebooting in 86400 seconds..