[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 82.025653][ T26] audit: type=1800 audit(1582325450.818:25): pid=9325 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 82.065388][ T26] audit: type=1800 audit(1582325450.818:26): pid=9325 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 82.102447][ T26] audit: type=1800 audit(1582325450.818:27): pid=9325 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 '10.128.0.144' (ECDSA) to the list of known hosts. syzkaller login: [ 91.291711][ T9482] IPVS: ftp: loaded support on port[0] = 21 [ 91.338537][ T9482] chnl_net:caif_netlink_parms(): no params data found [ 91.374032][ T9482] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.381495][ T9482] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.389406][ T9482] device bridge_slave_0 entered promiscuous mode [ 91.397414][ T9482] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.404473][ T9482] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.412241][ T9482] device bridge_slave_1 entered promiscuous mode [ 91.428263][ T9482] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 91.438775][ T9482] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 91.457442][ T9482] team0: Port device team_slave_0 added [ 91.464537][ T9482] team0: Port device team_slave_1 added [ 91.478288][ T9482] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 91.485223][ T9482] 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. [ 91.511135][ T9482] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 91.523117][ T9482] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 91.530473][ T9482] 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. [ 91.556515][ T9482] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 91.627748][ T9482] device hsr_slave_0 entered promiscuous mode [ 91.675688][ T9482] device hsr_slave_1 entered promiscuous mode [ 91.803430][ T9482] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 91.858420][ T9482] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 91.918285][ T9482] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 91.977166][ T9482] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 92.048937][ T9482] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.056094][ T9482] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.063556][ T9482] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.070635][ T9482] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.110454][ T9482] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.124097][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.133398][ T2910] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.141987][ T2910] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.149763][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 92.162164][ T9482] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.182958][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.191501][ T2909] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.198607][ T2909] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.209441][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.218603][ T2910] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.225693][ T2910] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.247533][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.257590][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.266391][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 92.278177][ T9482] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 92.289876][ T9482] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 92.297953][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 92.306396][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 92.326701][ T2788] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 92.334059][ T2788] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 92.343689][ T9482] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 92.361556][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 92.370748][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 92.390341][ T9482] device veth0_vlan entered promiscuous mode [ 92.397463][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 92.406831][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 92.422966][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 92.431028][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 92.441616][ T9482] device veth1_vlan entered promiscuous mode [ 92.460825][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 92.469639][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 92.477827][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 92.486391][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 92.497899][ T9482] device veth0_macvtap entered promiscuous mode [ 92.507583][ T9482] device veth1_macvtap entered promiscuous mode [ 92.522631][ T9482] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 92.530533][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 92.539248][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 92.547274][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 92.555907][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 92.570663][ T9482] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 92.578017][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 92.587082][ T2909] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 92.799258][ T9482] infiniband syz1: set active [ 92.804416][ T9482] infiniband syz1: added vlan0 [ 92.832973][ T9482] general protection fault, probably for non-canonical address 0xdffffc0000000086: 0000 [#1] PREEMPT SMP KASAN [ 92.844713][ T9482] KASAN: null-ptr-deref in range [0x0000000000000430-0x0000000000000437] [ 92.853098][ T9482] CPU: 1 PID: 9482 Comm: syz-executor492 Not tainted 5.6.0-rc1-syzkaller #0 [ 92.861890][ T9482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.871929][ T9482] RIP: 0010:rds_ib_add_one+0xba/0xcb0 [ 92.877276][ T9482] 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 [ 92.896855][ T9482] RSP: 0018:ffffc90001feef28 EFLAGS: 00010202 [ 92.902894][ T9482] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87675b6b [ 92.910838][ T9482] RDX: 0000000000000086 RSI: ffffffff87675b89 RDI: 0000000000000430 [ 92.918822][ T9482] RBP: ffffc90001feef60 R08: ffff8880a7908500 R09: ffffed1011fb589c [ 92.926766][ T9482] R10: ffffed1011fb589b R11: ffff88808fdac4df R12: ffff88808fdac558 [ 92.934710][ T9482] R13: ffff88808fdac000 R14: ffffffff8a904fc0 R15: ffffffff8a905050 [ 92.942656][ T9482] FS: 0000000001eae880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 92.951557][ T9482] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.958134][ T9482] CR2: 00007f952e914000 CR3: 000000009dbde000 CR4: 00000000001406e0 [ 92.966079][ T9482] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.974022][ T9482] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.981962][ T9482] Call Trace: [ 92.985227][ T9482] ? rds_ib_remove_one+0x290/0x290 [ 92.990346][ T9482] add_client_context+0x3dd/0x550 [ 92.995395][ T9482] ? ib_device_get_by_netdev+0x530/0x530 [ 93.001007][ T9482] ? rxe_enable_driver+0x68/0x90 [ 93.005923][ T9482] enable_device_and_get+0x1df/0x3c0 [ 93.011278][ T9482] ? add_one_compat_dev+0x7e0/0x7e0 [ 93.016489][ T9482] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 93.022217][ T9482] ib_register_device+0xa89/0xe40 [ 93.027219][ T9482] ? enable_device_and_get+0x3c0/0x3c0 [ 93.032656][ T9482] rxe_register_device+0x52e/0x655 [ 93.037748][ T9482] rxe_add+0x122b/0x1661 [ 93.041973][ T9482] rxe_net_add+0x91/0xf0 [ 93.046218][ T9482] rxe_newlink+0x39/0x90 [ 93.050435][ T9482] nldev_newlink+0x28a/0x430 [ 93.055092][ T9482] ? nldev_set_doit+0x420/0x420 [ 93.059946][ T9482] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 93.065379][ T9482] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.071590][ T9482] ? cap_capable+0x205/0x270 [ 93.076155][ T9482] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.082385][ T9482] ? ns_capable+0x20/0x30 [ 93.086690][ T9482] ? __netlink_ns_capable+0x104/0x140 [ 93.092035][ T9482] ? nldev_set_doit+0x420/0x420 [ 93.096858][ T9482] rdma_nl_rcv+0x5d9/0x980 [ 93.101258][ T9482] ? rdma_nl_multicast+0x330/0x330 [ 93.106347][ T9482] ? __kasan_check_read+0x11/0x20 [ 93.111345][ T9482] ? netlink_deliver_tap+0x248/0xbf0 [ 93.116616][ T9482] ? __kasan_check_write+0x14/0x20 [ 93.121752][ T9482] netlink_unicast+0x59e/0x7e0 [ 93.126492][ T9482] ? netlink_attachskb+0x870/0x870 [ 93.131577][ T9482] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 93.137269][ T9482] ? __check_object_size+0x3d/0x437 [ 93.142439][ T9482] netlink_sendmsg+0x91c/0xea0 [ 93.147208][ T9482] ? netlink_unicast+0x7e0/0x7e0 [ 93.152132][ T9482] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 93.157657][ T9482] ? apparmor_socket_sendmsg+0x2a/0x30 [ 93.163092][ T9482] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.169311][ T9482] ? security_socket_sendmsg+0x8d/0xc0 [ 93.174746][ T9482] ? netlink_unicast+0x7e0/0x7e0 [ 93.179702][ T9482] sock_sendmsg+0xd7/0x130 [ 93.184101][ T9482] ____sys_sendmsg+0x753/0x880 [ 93.188886][ T9482] ? kernel_sendmsg+0x50/0x50 [ 93.193654][ T9482] ___sys_sendmsg+0x100/0x170 [ 93.198341][ T9482] ? sendmsg_copy_msghdr+0x70/0x70 [ 93.203536][ T9482] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 93.209496][ T9482] ? prep_transhuge_page+0xa0/0xa0 [ 93.214619][ T9482] ? do_page_fault+0x579/0x12e1 [ 93.219444][ T9482] ? find_held_lock+0x35/0x130 [ 93.224191][ T9482] ? do_page_fault+0x579/0x12e1 [ 93.229148][ T9482] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.235362][ T9482] ? __fget_light+0x1ad/0x270 [ 93.240011][ T9482] ? __fdget+0x1b/0x20 [ 93.244052][ T9482] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.250265][ T9482] __sys_sendmsg+0x105/0x1d0 [ 93.254827][ T9482] ? __sys_sendmsg_sock+0xc0/0xc0 [ 93.259830][ T9482] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 93.265268][ T9482] ? do_syscall_64+0x26/0x790 [ 93.269925][ T9482] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.275998][ T9482] ? do_syscall_64+0x26/0x790 [ 93.280662][ T9482] __x64_sys_sendmsg+0x78/0xb0 [ 93.285399][ T9482] do_syscall_64+0xfa/0x790 [ 93.289878][ T9482] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.295739][ T9482] RIP: 0033:0x443499 [ 93.299608][ T9482] 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 [ 93.319189][ T9482] RSP: 002b:00007ffc55293e08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.327580][ T9482] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443499 [ 93.335530][ T9482] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 93.343483][ T9482] RBP: 00007ffc55293e20 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 93.351436][ T9482] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 93.359418][ T9482] R13: 0000000000404a30 R14: 0000000000000000 R15: 0000000000000000 [ 93.367372][ T9482] Modules linked in: [ 93.376043][ T9482] ---[ end trace b87cd212d23a9be9 ]--- [ 93.381513][ T9482] RIP: 0010:rds_ib_add_one+0xba/0xcb0 [ 93.386924][ T9482] 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 [ 93.406796][ T9482] RSP: 0018:ffffc90001feef28 EFLAGS: 00010202 [ 93.412838][ T9482] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87675b6b [ 93.420816][ T9482] RDX: 0000000000000086 RSI: ffffffff87675b89 RDI: 0000000000000430 [ 93.428796][ T9482] RBP: ffffc90001feef60 R08: ffff8880a7908500 R09: ffffed1011fb589c [ 93.436769][ T9482] R10: ffffed1011fb589b R11: ffff88808fdac4df R12: ffff88808fdac558 [ 93.444726][ T9482] R13: ffff88808fdac000 R14: ffffffff8a904fc0 R15: ffffffff8a905050 [ 93.453280][ T9482] FS: 0000000001eae880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 93.462240][ T9482] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.469057][ T9482] CR2: 00007f952e914000 CR3: 000000009dbde000 CR4: 00000000001406e0 [ 93.477050][ T9482] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.485008][ T9482] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.492987][ T9482] Kernel panic - not syncing: Fatal exception [ 93.500303][ T9482] Kernel Offset: disabled [ 93.504653][ T9482] Rebooting in 86400 seconds..