[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 69.457886][ T24] audit: type=1800 audit(1582623697.961:25): pid=9706 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 69.478061][ T24] audit: type=1800 audit(1582623697.971:26): pid=9706 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 69.518697][ T24] audit: type=1800 audit(1582623697.971:27): pid=9706 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.234' (ECDSA) to the list of known hosts. syzkaller login: [ 87.042536][ T9860] IPVS: ftp: loaded support on port[0] = 21 [ 87.088454][ T9860] chnl_net:caif_netlink_parms(): no params data found [ 87.134323][ T9860] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.141676][ T9860] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.149983][ T9860] device bridge_slave_0 entered promiscuous mode [ 87.158061][ T9860] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.165482][ T9860] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.173148][ T9860] device bridge_slave_1 entered promiscuous mode [ 87.190258][ T9860] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.201362][ T9860] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.220303][ T9860] team0: Port device team_slave_0 added [ 87.227515][ T9860] team0: Port device team_slave_1 added [ 87.241575][ T9860] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 87.248517][ T9860] 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. [ 87.274467][ T9860] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 87.286621][ T9860] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 87.293717][ T9860] 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. [ 87.319788][ T9860] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.390933][ T9860] device hsr_slave_0 entered promiscuous mode [ 87.428947][ T9860] device hsr_slave_1 entered promiscuous mode [ 87.529046][ T9860] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 87.571664][ T9860] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 87.621230][ T9860] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 87.651248][ T9860] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 87.703007][ T9860] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.710219][ T9860] bridge0: port 2(bridge_slave_1) entered forwarding state [ 87.717810][ T9860] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.724920][ T9860] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.765952][ T9860] 8021q: adding VLAN 0 to HW filter on device bond0 [ 87.780665][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 87.791295][ T2683] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.799506][ T2683] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.807397][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 87.820153][ T9860] 8021q: adding VLAN 0 to HW filter on device team0 [ 87.831849][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 87.840577][ T2693] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.847614][ T2693] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.871684][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 87.880926][ T2683] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.887960][ T2683] bridge0: port 2(bridge_slave_1) entered forwarding state [ 87.896098][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 87.905357][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 87.913920][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 87.926156][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 87.938444][ T9860] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 87.951251][ T9860] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 87.960811][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 87.977783][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 87.985963][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 87.997640][ T9860] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.015858][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 88.034603][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 88.043067][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 88.051078][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 88.069083][ T9860] device veth0_vlan entered promiscuous mode [ 88.082361][ T9860] device veth1_vlan entered promiscuous mode [ 88.090446][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 88.112353][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 88.121622][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 88.132813][ T9860] device veth0_macvtap entered promiscuous mode [ 88.148579][ T9860] device veth1_macvtap entered promiscuous mode [ 88.164366][ T9860] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.173673][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 88.183651][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 88.191776][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 88.200532][ T2683] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 88.213404][ T9860] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 88.220770][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 88.229506][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 88.434359][ T9860] infiniband syz1: set active [ 88.439694][ T9860] infiniband syz1: added vlan0 [ 88.462615][ T9860] general protection fault, probably for non-canonical address 0xdffffc0000000086: 0000 [#1] PREEMPT SMP KASAN [ 88.474347][ T9860] KASAN: null-ptr-deref in range [0x0000000000000430-0x0000000000000437] [ 88.482763][ T9860] CPU: 0 PID: 9860 Comm: syz-executor632 Not tainted 5.6.0-rc3-syzkaller #0 [ 88.491427][ T9860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.501501][ T9860] RIP: 0010:rds_ib_add_one+0xba/0xcb0 [ 88.506895][ T9860] Code: 03 80 3c 02 00 0f 85 6c 0a 00 00 49 8b 9d a8 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 30 04 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 7e [ 88.526490][ T9860] RSP: 0018:ffffc90001c5ef28 EFLAGS: 00010202 [ 88.532538][ T9860] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8767eaeb [ 88.540494][ T9860] RDX: 0000000000000086 RSI: ffffffff8767eb09 RDI: 0000000000000430 [ 88.548447][ T9860] RBP: ffffc90001c5ef60 R08: ffff88808b948500 R09: ffffed1012c8b89c [ 88.556417][ T9860] R10: ffffed1012c8b89b R11: ffff88809645c4df R12: ffff88809645c558 [ 88.564376][ T9860] R13: ffff88809645c000 R14: ffffffff8a905940 R15: ffffffff8a9059d0 [ 88.572328][ T9860] FS: 00000000016ea880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 88.581233][ T9860] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.587790][ T9860] CR2: 0000000020000000 CR3: 00000000a31be000 CR4: 00000000001406f0 [ 88.595741][ T9860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.603686][ T9860] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.611637][ T9860] Call Trace: [ 88.614914][ T9860] ? rds_ib_remove_one+0x290/0x290 [ 88.620033][ T9860] add_client_context+0x3dd/0x550 [ 88.625038][ T9860] ? ib_device_get_by_netdev+0x530/0x530 [ 88.630649][ T9860] ? rxe_enable_driver+0x68/0x90 [ 88.635563][ T9860] enable_device_and_get+0x1df/0x3c0 [ 88.640824][ T9860] ? add_one_compat_dev+0x7e0/0x7e0 [ 88.646000][ T9860] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 88.651708][ T9860] ib_register_device+0xa89/0xe40 [ 88.656708][ T9860] ? enable_device_and_get+0x3c0/0x3c0 [ 88.662153][ T9860] rxe_register_device+0x52e/0x655 [ 88.667239][ T9860] rxe_add+0x122b/0x1661 [ 88.671462][ T9860] rxe_net_add+0x91/0xf0 [ 88.675679][ T9860] rxe_newlink+0x39/0x90 [ 88.679959][ T9860] nldev_newlink+0x28a/0x430 [ 88.684536][ T9860] ? nldev_set_doit+0x420/0x420 [ 88.689413][ T9860] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 88.694866][ T9860] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.707507][ T9860] ? cap_capable+0x205/0x270 [ 88.712079][ T9860] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.718321][ T9860] ? ns_capable+0x20/0x30 [ 88.722638][ T9860] ? __netlink_ns_capable+0x104/0x140 [ 88.728000][ T9860] ? nldev_set_doit+0x420/0x420 [ 88.732869][ T9860] rdma_nl_rcv+0x5d9/0x980 [ 88.737275][ T9860] ? rdma_nl_multicast+0x330/0x330 [ 88.742414][ T9860] ? __kasan_check_read+0x11/0x20 [ 88.747426][ T9860] ? netlink_deliver_tap+0x248/0xbf0 [ 88.752694][ T9860] ? __kasan_check_write+0x14/0x20 [ 88.757792][ T9860] netlink_unicast+0x59e/0x7e0 [ 88.762535][ T9860] ? netlink_attachskb+0x870/0x870 [ 88.767625][ T9860] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 88.773321][ T9860] ? __check_object_size+0x3d/0x437 [ 88.778508][ T9860] netlink_sendmsg+0x91c/0xea0 [ 88.783262][ T9860] ? netlink_unicast+0x7e0/0x7e0 [ 88.788178][ T9860] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 88.793713][ T9860] ? apparmor_socket_sendmsg+0x2a/0x30 [ 88.799159][ T9860] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.805384][ T9860] ? security_socket_sendmsg+0x8d/0xc0 [ 88.810828][ T9860] ? netlink_unicast+0x7e0/0x7e0 [ 88.815759][ T9860] sock_sendmsg+0xd7/0x130 [ 88.820157][ T9860] ____sys_sendmsg+0x753/0x880 [ 88.824899][ T9860] ? kernel_sendmsg+0x50/0x50 [ 88.829570][ T9860] ___sys_sendmsg+0x100/0x170 [ 88.834235][ T9860] ? sendmsg_copy_msghdr+0x70/0x70 [ 88.839325][ T9860] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 88.845283][ T9860] ? prep_transhuge_page+0xa0/0xa0 [ 88.850374][ T9860] ? do_page_fault+0x579/0x12e1 [ 88.855202][ T9860] ? find_held_lock+0x35/0x130 [ 88.859944][ T9860] ? do_page_fault+0x579/0x12e1 [ 88.864773][ T9860] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 88.870991][ T9860] ? __fget_light+0x1ad/0x270 [ 88.875733][ T9860] ? __fdget+0x1b/0x20 [ 88.879790][ T9860] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 88.886014][ T9860] __sys_sendmsg+0x105/0x1d0 [ 88.890591][ T9860] ? __sys_sendmsg_sock+0xc0/0xc0 [ 88.896813][ T9860] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 88.902250][ T9860] ? do_syscall_64+0x26/0x790 [ 88.906902][ T9860] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.912944][ T9860] ? do_syscall_64+0x26/0x790 [ 88.917607][ T9860] __x64_sys_sendmsg+0x78/0xb0 [ 88.922348][ T9860] do_syscall_64+0xfa/0x790 [ 88.926830][ T9860] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.932695][ T9860] RIP: 0033:0x4434a9 [ 88.936567][ T9860] 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 7b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 88.956156][ T9860] RSP: 002b:00007ffecd0de6f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 88.964545][ T9860] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004434a9 [ 88.972501][ T9860] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 88.980451][ T9860] RBP: 00007ffecd0de710 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 88.988417][ T9860] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 88.996374][ T9860] R13: 0000000000404a40 R14: 0000000000000000 R15: 0000000000000000 [ 89.004330][ T9860] Modules linked in: [ 89.014122][ T9860] ---[ end trace 3116e5e2a1c1c66e ]--- [ 89.021041][ T9860] RIP: 0010:rds_ib_add_one+0xba/0xcb0 [ 89.026410][ T9860] Code: 03 80 3c 02 00 0f 85 6c 0a 00 00 49 8b 9d a8 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 30 04 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 7e [ 89.046230][ T9860] RSP: 0018:ffffc90001c5ef28 EFLAGS: 00010202 [ 89.052360][ T9860] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8767eaeb [ 89.060347][ T9860] RDX: 0000000000000086 RSI: ffffffff8767eb09 RDI: 0000000000000430 [ 89.068299][ T9860] RBP: ffffc90001c5ef60 R08: ffff88808b948500 R09: ffffed1012c8b89c [ 89.076298][ T9860] R10: ffffed1012c8b89b R11: ffff88809645c4df R12: ffff88809645c558 [ 89.084553][ T9860] R13: ffff88809645c000 R14: ffffffff8a905940 R15: ffffffff8a9059d0 [ 89.092563][ T9860] FS: 00000000016ea880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 89.102463][ T9860] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.109239][ T9860] CR2: 0000000020000000 CR3: 00000000a31be000 CR4: 00000000001406f0 [ 89.117213][ T9860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.125530][ T9860] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.133550][ T9860] Kernel panic - not syncing: Fatal exception [ 89.140643][ T9860] Kernel Offset: disabled [ 89.144970][ T9860] Rebooting in 86400 seconds..