[ 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 '10.128.0.210' (ECDSA) to the list of known hosts. syzkaller login: [ 138.091594][ T7076] IPVS: ftp: loaded support on port[0] = 21 [ 138.181836][ T7076] chnl_net:caif_netlink_parms(): no params data found [ 138.235444][ T7076] bridge0: port 1(bridge_slave_0) entered blocking state [ 138.244338][ T7076] bridge0: port 1(bridge_slave_0) entered disabled state [ 138.252065][ T7076] device bridge_slave_0 entered promiscuous mode [ 138.261083][ T7076] bridge0: port 2(bridge_slave_1) entered blocking state [ 138.268634][ T7076] bridge0: port 2(bridge_slave_1) entered disabled state [ 138.277172][ T7076] device bridge_slave_1 entered promiscuous mode [ 138.296849][ T7076] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 138.307917][ T7076] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 138.330240][ T7076] team0: Port device team_slave_0 added [ 138.337688][ T7076] team0: Port device team_slave_1 added [ 138.355972][ T7076] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 138.362905][ T7076] 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. [ 138.388878][ T7076] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 138.400945][ T7076] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 138.407970][ T7076] 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. [ 138.433918][ T7076] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 138.486038][ T7076] device hsr_slave_0 entered promiscuous mode [ 138.513999][ T7076] device hsr_slave_1 entered promiscuous mode [ 138.662858][ T7076] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 138.706957][ T7076] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 138.756338][ T7076] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 138.826204][ T7076] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 138.909028][ T7076] bridge0: port 2(bridge_slave_1) entered blocking state [ 138.916244][ T7076] bridge0: port 2(bridge_slave_1) entered forwarding state [ 138.924110][ T7076] bridge0: port 1(bridge_slave_0) entered blocking state [ 138.931171][ T7076] bridge0: port 1(bridge_slave_0) entered forwarding state [ 138.979655][ T7076] 8021q: adding VLAN 0 to HW filter on device bond0 [ 138.995081][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 139.006339][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 139.014334][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 139.022303][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 139.036633][ T7076] 8021q: adding VLAN 0 to HW filter on device team0 [ 139.048226][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 139.057503][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 139.064641][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 139.076674][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 139.085555][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 139.092588][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 139.116521][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 139.125738][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 139.135133][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 139.147685][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 139.159847][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 139.168331][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 139.179918][ T7076] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 139.200229][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 139.208142][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 139.221521][ T7076] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 139.246336][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 139.256127][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 139.278786][ T7076] device veth0_vlan entered promiscuous mode [ 139.286039][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 139.295535][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 139.304813][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 139.312723][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 139.327038][ T7076] device veth1_vlan entered promiscuous mode [ 139.350546][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 139.358703][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 139.367675][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 139.376366][ T2819] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 139.388250][ T7076] device veth0_macvtap entered promiscuous mode [ 139.398289][ T7076] device veth1_macvtap entered promiscuous mode [ 139.417833][ T7076] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 139.425421][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 139.434003][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 139.442022][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 139.451047][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 139.465599][ T7076] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 139.473102][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 139.483168][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 139.646253][ T7283] general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#1] PREEMPT SMP KASAN [ 139.657989][ T7283] KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf] [ 139.666379][ T7283] CPU: 1 PID: 7283 Comm: syz-executor883 Not tainted 5.7.0-rc1-next-20200415-syzkaller #0 [ 139.676232][ T7283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 139.686275][ T7283] RIP: 0010:sctp_ulpevent_nofity_peer_addr_change+0xed/0xa30 [ 139.693617][ T7283] Code: 03 80 3c 02 00 0f 85 19 08 00 00 48 8b ab a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bd bc 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 70 [ 139.713206][ T7283] RSP: 0018:ffffc90001a772f8 EFLAGS: 00010207 [ 139.719256][ T7283] RAX: dffffc0000000000 RBX: ffff888093764158 RCX: 0000000000000000 [ 139.727202][ T7283] RDX: 0000000000000017 RSI: 0000000000000000 RDI: 00000000000000bc [ 139.735148][ T7283] RBP: 0000000000000000 R08: ffff888091d98340 R09: ffffc90001a77348 [ 139.743096][ T7283] R10: ffffc90001a773c7 R11: fffff5200034ee78 R12: 0000000000000000 [ 139.751041][ T7283] R13: 0000000000000004 R14: 0000000000000000 R15: ffff888093764158 [ 139.758998][ T7283] FS: 00007fbb62fb4700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 139.767900][ T7283] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 139.774460][ T7283] CR2: 0000000020000180 CR3: 00000000a8cec000 CR4: 00000000001406e0 [ 139.782412][ T7283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 139.790363][ T7283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 139.798314][ T7283] Call Trace: [ 139.801611][ T7283] ? sctp_unhash_transport+0x65d/0x1090 [ 139.807151][ T7283] ? sctp_ulpevent_make_assoc_change+0x960/0x960 [ 139.813460][ T7283] ? sctp_unhash_transport+0x67f/0x1090 [ 139.818985][ T7283] sctp_assoc_set_primary+0x6c/0x300 [ 139.824249][ T7283] sctp_assoc_rm_peer+0x822/0xa50 [ 139.829253][ T7283] sctp_assoc_update+0x50a/0xdf0 [ 139.834173][ T7283] sctp_do_sm+0x1e92/0x4eb0 [ 139.838668][ T7283] ? entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 139.844724][ T7283] ? find_held_lock+0x2d/0x110 [ 139.849467][ T7283] ? sctp_do_8_2_transport_strike.isra.0+0xa60/0xa60 [ 139.856116][ T7283] ? mark_held_locks+0xe0/0xe0 [ 139.860857][ T7283] ? mark_lock+0x12b/0xf10 [ 139.865249][ T7283] ? mark_lock+0x12b/0xf10 [ 139.869641][ T7283] ? mark_lock+0x12b/0xf10 [ 139.874032][ T7283] ? sctp_assoc_bh_rcv+0x33a/0x6d0 [ 139.879125][ T7283] ? ktime_get+0xff/0x2f0 [ 139.883444][ T7283] ? lockdep_hardirqs_on+0x463/0x620 [ 139.888704][ T7283] ? ktime_get+0x1f8/0x2f0 [ 139.893098][ T7283] sctp_assoc_bh_rcv+0x386/0x6d0 [ 139.898016][ T7283] sctp_inq_push+0x1da/0x270 [ 139.902586][ T7283] sctp_backlog_rcv+0x1f3/0x12c0 [ 139.907506][ T7283] ? sctp_hash_obj+0x5f0/0x5f0 [ 139.912247][ T7283] ? mark_held_locks+0x9f/0xe0 [ 139.916989][ T7283] ? __local_bh_enable_ip+0x159/0x270 [ 139.922352][ T7283] __release_sock+0x134/0x3a0 [ 139.927005][ T7283] release_sock+0x54/0x1b0 [ 139.931395][ T7283] sctp_wait_for_connect+0x300/0x530 [ 139.936655][ T7283] ? sctp_close+0x8a0/0x8a0 [ 139.941141][ T7283] ? finish_wait+0x260/0x260 [ 139.945709][ T7283] ? sctp_primitive_ASSOCIATE+0x98/0xc0 [ 139.951237][ T7283] __sctp_connect+0x9d2/0xc70 [ 139.955890][ T7283] ? sctp_connect_new_asoc+0x580/0x580 [ 139.961324][ T7283] ? __might_fault+0x190/0x1d0 [ 139.966071][ T7283] ? _copy_from_user+0x13c/0x1a0 [ 139.970986][ T7283] ? security_sctp_bind_connect+0x8e/0xc0 [ 139.976697][ T7283] __sctp_setsockopt_connectx+0x12d/0x180 [ 139.982390][ T7283] sctp_setsockopt+0x15a1/0x7090 [ 139.987314][ T7283] ? sctp_setsockopt_bindx+0x2a0/0x2a0 [ 139.992746][ T7283] ? aa_label_sk_perm+0x89/0xe0 [ 139.997570][ T7283] ? aa_sk_perm+0x319/0xac0 [ 140.002050][ T7283] ? aa_af_perm+0x260/0x260 [ 140.006528][ T7283] ? do_page_fault+0x59e/0x13da [ 140.011350][ T7283] ? vm_insert_pages+0x6a0/0x6a0 [ 140.016277][ T7283] __sys_setsockopt+0x248/0x480 [ 140.021103][ T7283] ? sock_create_kern+0x40/0x40 [ 140.025928][ T7283] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 140.031460][ T7283] ? __x64_sys_futex+0x376/0x4f0 [ 140.036376][ T7283] ? switch_fpu_return+0x1db/0x4b0 [ 140.041461][ T7283] ? fpregs_mark_activate+0x320/0x320 [ 140.046809][ T7283] __x64_sys_setsockopt+0xba/0x150 [ 140.051892][ T7283] ? lockdep_hardirqs_on+0x463/0x620 [ 140.057153][ T7283] do_syscall_64+0xf6/0x7d0 [ 140.061642][ T7283] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 140.067515][ T7283] RIP: 0033:0x449e79 [ 140.071385][ T7283] Code: e8 0c 1b 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 2b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 140.090961][ T7283] RSP: 002b:00007fbb62fb3ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 140.099355][ T7283] RAX: ffffffffffffffda RBX: 00000000006e0c28 RCX: 0000000000449e79 [ 140.107301][ T7283] RDX: 000000000000006e RSI: 0000000000000084 RDI: 0000000000000003 [ 140.115257][ T7283] RBP: 00000000006e0c20 R08: 0000000000000020 R09: 0000000000000000 [ 140.123208][ T7283] R10: 0000000020000000 R11: 0000000000000246 R12: 00000000006e0c2c [ 140.131161][ T7283] R13: 00007fff4ed992ef R14: 00007fbb62fb49c0 R15: 00000000006e0c2c [ 140.139107][ T7283] Modules linked in: [ 140.149516][ T7283] ---[ end trace 713728bbf9efda83 ]--- [ 140.155038][ T7283] RIP: 0010:sctp_ulpevent_nofity_peer_addr_change+0xed/0xa30 [ 140.162430][ T7283] Code: 03 80 3c 02 00 0f 85 19 08 00 00 48 8b ab a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bd bc 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 70 [ 140.182443][ T7283] RSP: 0018:ffffc90001a772f8 EFLAGS: 00010207 [ 140.188837][ T7283] RAX: dffffc0000000000 RBX: ffff888093764158 RCX: 0000000000000000 [ 140.197302][ T7283] RDX: 0000000000000017 RSI: 0000000000000000 RDI: 00000000000000bc [ 140.205331][ T7283] RBP: 0000000000000000 R08: ffff888091d98340 R09: ffffc90001a77348 [ 140.213369][ T7283] R10: ffffc90001a773c7 R11: fffff5200034ee78 R12: 0000000000000000 [ 140.221331][ T7283] R13: 0000000000000004 R14: 0000000000000000 R15: ffff888093764158 [ 140.229345][ T7283] FS: 00007fbb62fb4700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 140.238353][ T7283] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 140.244978][ T7283] CR2: 00007f5c8403e0d8 CR3: 00000000a8cec000 CR4: 00000000001406e0 [ 140.252957][ T7283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 140.260958][ T7283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 140.269500][ T7283] Kernel panic - not syncing: Fatal exception [ 140.276562][ T7283] Kernel Offset: disabled [ 140.280882][ T7283] Rebooting in 86400 seconds..