[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 49.739810][ T23] audit: type=1800 audit(1582365393.144:25): pid=8699 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 49.766415][ T23] audit: type=1800 audit(1582365393.144:26): pid=8699 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 49.796457][ T23] audit: type=1800 audit(1582365393.144:27): pid=8699 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.104' (ECDSA) to the list of known hosts. syzkaller login: [ 62.103127][ T8852] IPVS: ftp: loaded support on port[0] = 21 [ 62.144814][ T8852] chnl_net:caif_netlink_parms(): no params data found [ 62.178348][ T8852] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.186008][ T8852] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.193943][ T8852] device bridge_slave_0 entered promiscuous mode [ 62.202290][ T8852] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.209503][ T8852] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.217205][ T8852] device bridge_slave_1 entered promiscuous mode [ 62.233588][ T8852] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.244910][ T8852] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.266497][ T8852] team0: Port device team_slave_0 added [ 62.274101][ T8852] team0: Port device team_slave_1 added [ 62.288611][ T8852] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.296813][ T8852] 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. [ 62.323602][ T8852] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.336079][ T8852] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.343274][ T8852] 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. [ 62.370373][ T8852] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.448036][ T8852] device hsr_slave_0 entered promiscuous mode [ 62.496997][ T8852] device hsr_slave_1 entered promiscuous mode [ 62.617726][ T8852] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.648952][ T8852] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.688395][ T8852] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.768472][ T8852] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.859124][ T8852] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.866573][ T8852] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.874446][ T8852] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.881567][ T8852] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.920370][ T8852] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.933341][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.943926][ T2696] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.952488][ T2696] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.960811][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 62.973856][ T8852] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.985100][ T4075] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.994073][ T4075] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.001302][ T4075] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.012192][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.021525][ T2696] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.028765][ T2696] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.048572][ T2694] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.057629][ T2694] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.072854][ T8852] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.084021][ T8852] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.097733][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.105602][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.114186][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.123956][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.141685][ T4075] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.149621][ T4075] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.161345][ T8852] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.178535][ T4075] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.188140][ T4075] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.208655][ T4074] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.217694][ T4074] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.227108][ T8852] device veth0_vlan entered promiscuous mode [ 63.237131][ T4074] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.245021][ T4074] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.254213][ T8852] device veth1_vlan entered promiscuous mode [ 63.273995][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.282397][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.290573][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.301695][ T2696] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.313415][ T8852] device veth0_macvtap entered promiscuous mode [ 63.323398][ T8852] device veth1_macvtap entered promiscuous mode [ 63.338095][ T8852] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.345731][ T4074] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.346264][ T4074] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.362808][ T4074] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.371987][ T4074] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.383283][ T8852] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.392202][ T4075] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.401685][ T4075] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 63.590079][ T8852] infiniband syz1: set active [ 63.595522][ T8852] infiniband syz1: added vlan0 [ 63.620976][ T8852] general protection fault, probably for non-canonical address 0xdffffc0000000086: 0000 [#1] PREEMPT SMP KASAN [ 63.632882][ T8852] KASAN: null-ptr-deref in range [0x0000000000000430-0x0000000000000437] [ 63.641287][ T8852] CPU: 0 PID: 8852 Comm: syz-executor043 Not tainted 5.6.0-rc2-syzkaller #0 [ 63.650177][ T8852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.660644][ T8852] RIP: 0010:rds_ib_add_one+0x81/0xe50 [ 63.666120][ T8852] Code: b7 a8 06 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 0e e4 1d fa bb 30 04 00 00 49 03 1e 48 89 d8 48 c1 e8 03 <42> 8a 04 28 84 c0 0f 85 f0 0a 00 00 8b 1b 48 c7 c0 28 0c 09 89 48 [ 63.685924][ T8852] RSP: 0018:ffffc90003087298 EFLAGS: 00010202 [ 63.692144][ T8852] RAX: 0000000000000086 RBX: 0000000000000430 RCX: 0000000000000000 [ 63.700113][ T8852] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 [ 63.708078][ T8852] RBP: ffffc900030872f0 R08: ffffffff87964c3c R09: ffffed1014fd109c [ 63.716090][ T8852] R10: ffffed1014fd109c R11: 0000000000000000 R12: 0000000000000000 [ 63.724054][ T8852] R13: dffffc0000000000 R14: ffff8880a7e886a8 R15: ffff8880a7e88000 [ 63.732150][ T8852] FS: 0000000000c3d880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 [ 63.741077][ T8852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.747709][ T8852] CR2: 00007f0318ed0000 CR3: 00000000a3167000 CR4: 00000000001406f0 [ 63.756028][ T8852] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.764286][ T8852] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.772832][ T8852] Call Trace: [ 63.776155][ T8852] ? _raw_spin_unlock+0x27/0x40 [ 63.781509][ T8852] ? rds_ib_get_client_data+0x1a0/0x1a0 [ 63.788232][ T8852] add_client_context+0x482/0x660 [ 63.793250][ T8852] enable_device_and_get+0x15b/0x370 [ 63.798862][ T8852] ib_register_device+0x124d/0x15b0 [ 63.804684][ T8852] ? crypto_alloc_tfm+0x335/0x360 [ 63.809718][ T8852] rxe_register_device+0x3f6/0x530 [ 63.815305][ T8852] rxe_add+0x1373/0x14f0 [ 63.819555][ T8852] rxe_net_add+0x79/0xe0 [ 63.823939][ T8852] rxe_newlink+0x31/0x90 [ 63.828471][ T8852] nldev_newlink+0x403/0x4a0 [ 63.833383][ T8852] ? nldev_set_doit+0x340/0x340 [ 63.838498][ T8852] rdma_nl_rcv+0x701/0xa20 [ 63.843071][ T8852] netlink_unicast+0x766/0x920 [ 63.848074][ T8852] netlink_sendmsg+0xa2b/0xd40 [ 63.853088][ T8852] ? netlink_getsockopt+0x9f0/0x9f0 [ 63.858686][ T8852] ____sys_sendmsg+0x4f7/0x7f0 [ 63.863450][ T8852] __sys_sendmsg+0x1ed/0x290 [ 63.868179][ T8852] ? handle_mm_fault+0x173a/0x2900 [ 63.873564][ T8852] ? check_preemption_disabled+0x44/0x260 [ 63.879527][ T8852] ? debug_smp_processor_id+0x9/0x20 [ 63.884958][ T8852] ? rcu_read_lock_sched_held+0x10b/0x170 [ 63.891265][ T8852] ? __kasan_check_write+0x14/0x20 [ 63.896533][ T8852] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 63.902001][ T8852] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 63.907834][ T8852] ? do_syscall_64+0x1d/0x1c0 [ 63.912596][ T8852] __x64_sys_sendmsg+0x7f/0x90 [ 63.917472][ T8852] do_syscall_64+0xf7/0x1c0 [ 63.922075][ T8852] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.927960][ T8852] RIP: 0033:0x443499 [ 63.932098][ T8852] 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 [ 63.952476][ T8852] RSP: 002b:00007ffdacfaf488 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 63.961286][ T8852] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443499 [ 63.969433][ T8852] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 63.977427][ T8852] RBP: 00007ffdacfaf4a0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 63.985513][ T8852] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 63.994152][ T8852] R13: 0000000000404a30 R14: 0000000000000000 R15: 0000000000000000 [ 64.002127][ T8852] Modules linked in: [ 64.008854][ T8852] ---[ end trace 542f2d063f2edc54 ]--- [ 64.014334][ T8852] RIP: 0010:rds_ib_add_one+0x81/0xe50 [ 64.019811][ T8852] Code: b7 a8 06 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 0e e4 1d fa bb 30 04 00 00 49 03 1e 48 89 d8 48 c1 e8 03 <42> 8a 04 28 84 c0 0f 85 f0 0a 00 00 8b 1b 48 c7 c0 28 0c 09 89 48 [ 64.039579][ T8852] RSP: 0018:ffffc90003087298 EFLAGS: 00010202 [ 64.045691][ T8852] RAX: 0000000000000086 RBX: 0000000000000430 RCX: 0000000000000000 [ 64.053898][ T8852] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 [ 64.062245][ T8852] RBP: ffffc900030872f0 R08: ffffffff87964c3c R09: ffffed1014fd109c [ 64.070335][ T8852] R10: ffffed1014fd109c R11: 0000000000000000 R12: 0000000000000000 [ 64.078661][ T8852] R13: dffffc0000000000 R14: ffff8880a7e886a8 R15: ffff8880a7e88000 [ 64.086680][ T8852] FS: 0000000000c3d880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 [ 64.095641][ T8852] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.105042][ T8852] CR2: 00007f0318ed0000 CR3: 00000000a3167000 CR4: 00000000001406f0 [ 64.113043][ T8852] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.121048][ T8852] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.129037][ T8852] Kernel panic - not syncing: Fatal exception [ 64.136331][ T8852] Kernel Offset: disabled [ 64.140736][ T8852] Rebooting in 86400 seconds..