[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 57.399972][ T26] audit: type=1800 audit(1573386169.852:25): pid=8655 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 57.441918][ T26] audit: type=1800 audit(1573386169.862:26): pid=8655 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 57.483670][ T26] audit: type=1800 audit(1573386169.862:27): pid=8655 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 '10.128.0.130' (ECDSA) to the list of known hosts. 2019/11/10 11:43:00 parsed 1 programs 2019/11/10 11:43:02 executed programs: 0 syzkaller login: [ 69.664791][ T8827] IPVS: ftp: loaded support on port[0] = 21 [ 69.727998][ T8827] chnl_net:caif_netlink_parms(): no params data found [ 69.758054][ T8827] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.765530][ T8827] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.774280][ T8827] device bridge_slave_0 entered promiscuous mode [ 69.782635][ T8827] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.789887][ T8827] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.798185][ T8827] device bridge_slave_1 entered promiscuous mode [ 69.816225][ T8827] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.826894][ T8827] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.846323][ T8827] team0: Port device team_slave_0 added [ 69.853743][ T8827] team0: Port device team_slave_1 added [ 69.914603][ T8827] device hsr_slave_0 entered promiscuous mode [ 69.972322][ T8827] device hsr_slave_1 entered promiscuous mode [ 70.082834][ T8827] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.090139][ T8827] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.098088][ T8827] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.105209][ T8827] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.218426][ T8827] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.252862][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.302846][ T22] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.332270][ T22] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.353127][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 70.395729][ T8827] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.414885][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.432809][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.439887][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.504987][ T3016] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.514468][ T3016] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.521547][ T3016] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.573557][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.584902][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.604381][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.627529][ T8827] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.664486][ T8827] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.692880][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.701278][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.743748][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.751316][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.787099][ T8827] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.956363][ T8866] kasan: CONFIG_KASAN_INLINE enabled [ 70.961964][ T8866] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 70.970042][ T8866] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 70.976985][ T8866] CPU: 1 PID: 8866 Comm: syz-executor.0 Not tainted 5.4.0-rc6+ #0 [ 70.984785][ T8866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.994860][ T8866] RIP: 0010:j1939_priv_get_by_ndev_locked+0xf5/0x190 [ 71.001632][ T8866] Code: 03 80 3c 02 00 0f 85 ae 00 00 00 48 8b 9b 88 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 28 60 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 7f 4c 8b a3 28 60 00 00 4d 85 e4 74 12 e8 24 4b f4 [ 71.021234][ T8866] RSP: 0018:ffff8880971c7980 EFLAGS: 00010206 [ 71.027311][ T8866] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff867ed957 [ 71.035371][ T8866] RDX: 0000000000000c05 RSI: ffffffff867ed964 RDI: 0000000000006028 [ 71.043350][ T8866] RBP: ffff8880971c7998 R08: ffff888099f04140 R09: ffffed1012e38f23 [ 71.051322][ T8866] R10: ffffed1012e38f22 R11: 0000000000000003 R12: 0000000000000000 [ 71.059383][ T8866] R13: 0000000000000118 R14: dffffc0000000000 R15: 0000000000000000 [ 71.067409][ T8866] FS: 00000000020b4940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 71.076610][ T8866] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.083366][ T8866] CR2: 0000000001df0e08 CR3: 0000000090fc8000 CR4: 00000000001406e0 [ 71.091434][ T8866] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.099408][ T8866] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.107383][ T8866] Call Trace: [ 71.110682][ T8866] j1939_netdev_notify+0x47/0x120 [ 71.115884][ T8866] notifier_call_chain+0xc2/0x230 [ 71.120923][ T8866] raw_notifier_call_chain+0x2e/0x40 [ 71.126212][ T8866] call_netdevice_notifiers_info+0x3f/0x90 [ 71.132021][ T8866] rollback_registered_many+0x9b9/0xfc0 [ 71.137593][ T8866] ? generic_xdp_install+0x4a0/0x4a0 [ 71.142896][ T8866] ? rtnl_lock+0x17/0x20 [ 71.147755][ T8866] ? mutex_trylock+0x2d0/0x2d0 [ 71.152519][ T8866] ? lockdep_hardirqs_on+0x421/0x5e0 [ 71.157893][ T8866] rollback_registered+0x109/0x1d0 [ 71.163009][ T8866] ? rollback_registered_many+0xfc0/0xfc0 [ 71.168737][ T8866] ? try_to_del_timer_sync+0xc1/0x110 [ 71.174116][ T8866] unregister_netdevice_queue+0x1ee/0x2c0 [ 71.179928][ T8866] unregister_netdev+0x1d/0x30 [ 71.184688][ T8866] slip_close+0x16d/0x1d0 [ 71.189011][ T8866] ? sl_bump+0x5a0/0x5a0 [ 71.193339][ T8866] tty_ldisc_close.isra.0+0x119/0x1a0 [ 71.199106][ T8866] tty_ldisc_kill+0x9c/0x160 [ 71.203682][ T8866] tty_ldisc_release+0xe9/0x2b0 [ 71.208546][ T8866] tty_release_struct+0x1b/0x50 [ 71.213740][ T8866] tty_release+0xbcb/0xe90 [ 71.218244][ T8866] __fput+0x2ff/0x890 [ 71.222222][ T8866] ? put_tty_driver+0x20/0x20 [ 71.226970][ T8866] ____fput+0x16/0x20 [ 71.230934][ T8866] task_work_run+0x145/0x1c0 [ 71.235867][ T8866] exit_to_usermode_loop+0x316/0x380 [ 71.241236][ T8866] do_syscall_64+0x65f/0x760 [ 71.245813][ T8866] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.251693][ T8866] RIP: 0033:0x413d90 [ 71.255594][ T8866] Code: 01 f0 ff ff 0f 83 30 1b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 7d 42 66 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff [ 71.275352][ T8866] RSP: 002b:00007ffc95cd9028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 71.284108][ T8866] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000413d90 [ 71.292245][ T8866] RDX: 0000001b33620000 RSI: 0000000000000000 RDI: 0000000000000004 [ 71.300214][ T8866] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffff [ 71.308176][ T8866] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf20 [ 71.316156][ T8866] R13: 0000000000000003 R14: 00000000007602f8 R15: 000000000075bf2c [ 71.324115][ T8866] Modules linked in: [ 71.331218][ T8866] ---[ end trace fbaf0deb1047bf6e ]--- [ 71.336809][ T8866] RIP: 0010:j1939_priv_get_by_ndev_locked+0xf5/0x190 [ 71.343500][ T8866] Code: 03 80 3c 02 00 0f 85 ae 00 00 00 48 8b 9b 88 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 28 60 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 7f 4c 8b a3 28 60 00 00 4d 85 e4 74 12 e8 24 4b f4 [ 71.363132][ T8866] RSP: 0018:ffff8880971c7980 EFLAGS: 00010206 [ 71.369397][ T8866] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff867ed957 [ 71.377395][ T8866] RDX: 0000000000000c05 RSI: ffffffff867ed964 RDI: 0000000000006028 [ 71.385561][ T8866] RBP: ffff8880971c7998 R08: ffff888099f04140 R09: ffffed1012e38f23 [ 71.393551][ T8866] R10: ffffed1012e38f22 R11: 0000000000000003 R12: 0000000000000000 [ 71.401517][ T8866] R13: 0000000000000118 R14: dffffc0000000000 R15: 0000000000000000 [ 71.409702][ T8866] FS: 00000000020b4940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 71.418654][ T8866] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.425251][ T8866] CR2: 0000000001df0e08 CR3: 0000000090fc8000 CR4: 00000000001406e0 [ 71.433288][ T8866] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.442677][ T8866] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.450645][ T8866] Kernel panic - not syncing: Fatal exception [ 71.458007][ T8866] Kernel Offset: disabled [ 71.462341][ T8866] Rebooting in 86400 seconds..