[ 101.035499][ T27] audit: type=1800 audit(1582327396.709:25): pid=9785 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 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. [ 101.897313][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 101.897323][ T27] audit: type=1800 audit(1582327397.569:29): pid=9785 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 101.924132][ T27] audit: type=1800 audit(1582327397.569:30): pid=9785 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.110' (ECDSA) to the list of known hosts. syzkaller login: [ 111.523519][ T9938] IPVS: ftp: loaded support on port[0] = 21 [ 111.575240][ T9938] chnl_net:caif_netlink_parms(): no params data found [ 111.615553][ T9938] bridge0: port 1(bridge_slave_0) entered blocking state [ 111.623063][ T9938] bridge0: port 1(bridge_slave_0) entered disabled state [ 111.631492][ T9938] device bridge_slave_0 entered promiscuous mode [ 111.640088][ T9938] bridge0: port 2(bridge_slave_1) entered blocking state [ 111.647487][ T9938] bridge0: port 2(bridge_slave_1) entered disabled state [ 111.655314][ T9938] device bridge_slave_1 entered promiscuous mode [ 111.673727][ T9938] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 111.685489][ T9938] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 111.704880][ T9938] team0: Port device team_slave_0 added [ 111.712796][ T9938] team0: Port device team_slave_1 added [ 111.729252][ T9938] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 111.736339][ T9938] 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. [ 111.762379][ T9938] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 111.775286][ T9938] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 111.782247][ T9938] 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. [ 111.808483][ T9938] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 111.886100][ T9938] device hsr_slave_0 entered promiscuous mode [ 111.923791][ T9938] device hsr_slave_1 entered promiscuous mode [ 112.060334][ T9938] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 112.117235][ T9938] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 112.175609][ T9938] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 112.216153][ T9938] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 112.280446][ T9938] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.287646][ T9938] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.295644][ T9938] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.302882][ T9938] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.349225][ T9938] 8021q: adding VLAN 0 to HW filter on device bond0 [ 112.362573][ T2955] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 112.373040][ T2955] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.381379][ T2955] bridge0: port 2(bridge_slave_1) entered disabled state [ 112.390048][ T2955] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 112.404005][ T9938] 8021q: adding VLAN 0 to HW filter on device team0 [ 112.416022][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 112.425158][ T2803] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.432334][ T2803] bridge0: port 1(bridge_slave_0) entered forwarding state [ 112.454844][ T2955] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 112.464331][ T2955] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.471524][ T2955] bridge0: port 2(bridge_slave_1) entered forwarding state [ 112.479729][ T2955] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 112.488778][ T2955] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 112.503093][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 112.511995][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 112.526806][ T9938] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 112.538245][ T9938] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 112.546936][ T2954] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 112.567060][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 112.574640][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 112.589445][ T9938] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 112.609084][ T2954] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 112.618450][ T2954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 112.641757][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 112.651559][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 112.661184][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 112.669134][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 112.678544][ T9938] device veth0_vlan entered promiscuous mode [ 112.691369][ T9938] device veth1_vlan entered promiscuous mode [ 112.712790][ T2954] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 112.721829][ T2954] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 112.731147][ T2954] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 112.739762][ T2954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 112.751548][ T9938] device veth0_macvtap entered promiscuous mode [ 112.761811][ T9938] device veth1_macvtap entered promiscuous mode [ 112.779340][ T9938] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 112.788507][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 112.797875][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 112.806273][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 112.814916][ T2805] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 112.827263][ T9938] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 112.836015][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 112.845262][ T2803] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 113.104702][ T9938] infiniband syz1: set active [ 113.109644][ T9938] infiniband syz1: added vlan0 [ 113.132338][ T9938] general protection fault, probably for non-canonical address 0xdffffc0000000086: 0000 [#1] PREEMPT SMP KASAN [ 113.144086][ T9938] KASAN: null-ptr-deref in range [0x0000000000000430-0x0000000000000437] [ 113.152506][ T9938] CPU: 1 PID: 9938 Comm: syz-executor155 Not tainted 5.6.0-rc1-syzkaller #0 [ 113.161345][ T9938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.171407][ T9938] RIP: 0010:rds_ib_add_one+0xba/0xcb0 [ 113.176816][ T9938] 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 [ 113.196651][ T9938] RSP: 0018:ffffc90005736f28 EFLAGS: 00010202 [ 113.202730][ T9938] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87677f5b [ 113.210696][ T9938] RDX: 0000000000000086 RSI: ffffffff87677f79 RDI: 0000000000000430 [ 113.218672][ T9938] RBP: ffffc90005736f60 R08: ffff888092a92580 R09: ffffed1012c3f09c [ 113.226666][ T9938] R10: ffffed1012c3f09b R11: ffff8880961f84df R12: ffff8880961f8558 [ 113.234673][ T9938] R13: ffff8880961f8000 R14: ffffffff8a904d80 R15: ffffffff8a904e10 [ 113.242643][ T9938] FS: 00000000012a5880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 113.251574][ T9938] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 113.258161][ T9938] CR2: 00005638baee80d0 CR3: 0000000094c9e000 CR4: 00000000001406e0 [ 113.266127][ T9938] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 113.274106][ T9938] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 113.282126][ T9938] Call Trace: [ 113.285413][ T9938] ? rds_ib_remove_one+0x290/0x290 [ 113.290719][ T9938] add_client_context+0x3dd/0x550 [ 113.295739][ T9938] ? ib_device_get_by_netdev+0x530/0x530 [ 113.301371][ T9938] ? rxe_enable_driver+0x68/0x90 [ 113.308219][ T9938] enable_device_and_get+0x1df/0x3c0 [ 113.313487][ T9938] ? add_one_compat_dev+0x7e0/0x7e0 [ 113.318687][ T9938] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 113.324398][ T9938] ib_register_device+0xa89/0xe40 [ 113.329461][ T9938] ? enable_device_and_get+0x3c0/0x3c0 [ 113.335033][ T9938] rxe_register_device+0x52e/0x655 [ 113.340126][ T9938] rxe_add+0x122b/0x1661 [ 113.344493][ T9938] rxe_net_add+0x91/0xf0 [ 113.348905][ T9938] rxe_newlink+0x39/0x90 [ 113.353189][ T9938] nldev_newlink+0x28a/0x430 [ 113.357771][ T9938] ? nldev_set_doit+0x420/0x420 [ 113.362691][ T9938] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 113.368176][ T9938] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 113.374475][ T9938] ? cap_capable+0x205/0x270 [ 113.379143][ T9938] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 113.385522][ T9938] ? ns_capable+0x20/0x30 [ 113.390673][ T9938] ? __netlink_ns_capable+0x104/0x140 [ 113.396032][ T9938] ? nldev_set_doit+0x420/0x420 [ 113.400876][ T9938] rdma_nl_rcv+0x5d9/0x980 [ 113.405315][ T9938] ? rdma_nl_multicast+0x330/0x330 [ 113.410502][ T9938] ? __kasan_check_read+0x11/0x20 [ 113.415513][ T9938] ? netlink_deliver_tap+0x248/0xbf0 [ 113.420806][ T9938] ? __kasan_check_write+0x14/0x20 [ 113.425923][ T9938] netlink_unicast+0x59e/0x7e0 [ 113.430695][ T9938] ? netlink_attachskb+0x870/0x870 [ 113.435816][ T9938] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 113.441518][ T9938] ? __check_object_size+0x3d/0x437 [ 113.446716][ T9938] netlink_sendmsg+0x91c/0xea0 [ 113.451475][ T9938] ? netlink_unicast+0x7e0/0x7e0 [ 113.457232][ T9938] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 113.462772][ T9938] ? apparmor_socket_sendmsg+0x2a/0x30 [ 113.468214][ T9938] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 113.474433][ T9938] ? security_socket_sendmsg+0x8d/0xc0 [ 113.479892][ T9938] ? netlink_unicast+0x7e0/0x7e0 [ 113.484820][ T9938] sock_sendmsg+0xd7/0x130 [ 113.489219][ T9938] ____sys_sendmsg+0x753/0x880 [ 113.493973][ T9938] ? kernel_sendmsg+0x50/0x50 [ 113.498634][ T9938] ___sys_sendmsg+0x100/0x170 [ 113.503292][ T9938] ? sendmsg_copy_msghdr+0x70/0x70 [ 113.508399][ T9938] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 113.514482][ T9938] ? prep_transhuge_page+0xa0/0xa0 [ 113.519578][ T9938] ? do_page_fault+0x579/0x12e1 [ 113.524415][ T9938] ? find_held_lock+0x35/0x130 [ 113.529164][ T9938] ? do_page_fault+0x579/0x12e1 [ 113.534133][ T9938] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 113.540448][ T9938] ? __fget_light+0x1ad/0x270 [ 113.545120][ T9938] ? __fdget+0x1b/0x20 [ 113.549221][ T9938] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 113.555463][ T9938] __sys_sendmsg+0x105/0x1d0 [ 113.560036][ T9938] ? __sys_sendmsg_sock+0xc0/0xc0 [ 113.565098][ T9938] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 113.570550][ T9938] ? do_syscall_64+0x26/0x790 [ 113.575263][ T9938] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 113.581325][ T9938] ? do_syscall_64+0x26/0x790 [ 113.585991][ T9938] __x64_sys_sendmsg+0x78/0xb0 [ 113.590788][ T9938] do_syscall_64+0xfa/0x790 [ 113.595282][ T9938] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 113.601196][ T9938] RIP: 0033:0x443499 [ 113.605104][ T9938] 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 [ 113.624696][ T9938] RSP: 002b:00007ffc03b56d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 113.633102][ T9938] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443499 [ 113.641337][ T9938] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 113.649521][ T9938] RBP: 00007ffc03b56d40 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 113.657516][ T9938] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 113.665475][ T9938] R13: 0000000000404a30 R14: 0000000000000000 R15: 0000000000000000 [ 113.673439][ T9938] Modules linked in: [ 113.681172][ T9938] ---[ end trace 93f6dfef8adde830 ]--- [ 113.686717][ T9938] RIP: 0010:rds_ib_add_one+0xba/0xcb0 [ 113.692087][ T9938] 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 [ 113.711762][ T9938] RSP: 0018:ffffc90005736f28 EFLAGS: 00010202 [ 113.717864][ T9938] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87677f5b [ 113.725960][ T9938] RDX: 0000000000000086 RSI: ffffffff87677f79 RDI: 0000000000000430 [ 113.733956][ T9938] RBP: ffffc90005736f60 R08: ffff888092a92580 R09: ffffed1012c3f09c [ 113.741908][ T9938] R10: ffffed1012c3f09b R11: ffff8880961f84df R12: ffff8880961f8558 [ 113.750083][ T9938] R13: ffff8880961f8000 R14: ffffffff8a904d80 R15: ffffffff8a904e10 [ 113.758079][ T9938] FS: 00000000012a5880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 113.767086][ T9938] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 113.773720][ T9938] CR2: 00005638baee80d0 CR3: 0000000094c9e000 CR4: 00000000001406e0 [ 113.781796][ T9938] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 113.790354][ T9938] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 113.798398][ T9938] Kernel panic - not syncing: Fatal exception [ 113.805792][ T9938] Kernel Offset: disabled [ 113.810136][ T9938] Rebooting in 86400 seconds..