[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.261882][ T26] audit: type=1800 audit(1573524574.011:25): pid=7847 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.297305][ T26] audit: type=1800 audit(1573524574.011:26): pid=7847 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.318038][ T26] audit: type=1800 audit(1573524574.011:27): pid=7847 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 '10.128.10.13' (ECDSA) to the list of known hosts. 2019/11/12 02:09:44 parsed 1 programs 2019/11/12 02:09:46 executed programs: 0 syzkaller login: [ 54.542312][ T8013] IPVS: ftp: loaded support on port[0] = 21 [ 54.596440][ T8013] chnl_net:caif_netlink_parms(): no params data found [ 54.619424][ T8013] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.628114][ T8013] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.636034][ T8013] device bridge_slave_0 entered promiscuous mode [ 54.644344][ T8013] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.652070][ T8013] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.660375][ T8013] device bridge_slave_1 entered promiscuous mode [ 54.677027][ T8013] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.688481][ T8013] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.707406][ T8013] team0: Port device team_slave_0 added [ 54.714739][ T8013] team0: Port device team_slave_1 added [ 54.793139][ T8013] device hsr_slave_0 entered promiscuous mode [ 54.841448][ T8013] device hsr_slave_1 entered promiscuous mode [ 54.944667][ T8013] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.951927][ T8013] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.959725][ T8013] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.966871][ T8013] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.093656][ T8013] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.126712][ T8039] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.141481][ T8039] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.172688][ T8039] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.201617][ T8039] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 55.236147][ T8013] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.252304][ T8039] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.260684][ T8039] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.268317][ T8039] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.312942][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.341958][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.349046][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.382785][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.408964][ T8013] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 55.430823][ T8013] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 55.455236][ T2877] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.464274][ T2877] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.474225][ T2877] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.484611][ T2877] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.493284][ T2877] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.511788][ T8013] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 55.519370][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 55.527924][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 55.823431][ T8094] kasan: CONFIG_KASAN_INLINE enabled [ 55.828890][ T8094] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 55.836939][ T8094] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 55.845347][ T8094] CPU: 1 PID: 8094 Comm: syz-executor.0 Not tainted 5.4.0-rc7 #0 [ 55.853052][ T8094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.863103][ T8094] RIP: 0010:__lock_acquire+0x86/0x1be0 [ 55.868540][ T8094] Code: 8a 04 30 84 c0 0f 85 66 12 00 00 83 3d 32 12 66 07 00 0f 84 91 12 00 00 83 3d 95 93 34 07 00 74 34 48 8b 44 24 10 48 c1 e8 03 <80> 3c 30 00 74 14 48 8b 7c 24 10 e8 2a 12 54 00 48 be 00 00 00 00 [ 55.888131][ T8094] RSP: 0018:ffff888092d37b80 EFLAGS: 00010006 [ 55.894182][ T8094] RAX: 0000000000000218 RBX: 0000000000000001 RCX: 0000000000000000 [ 55.902134][ T8094] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000010c0 [ 55.910092][ T8094] RBP: ffff888092d37cd8 R08: 0000000000000001 R09: 0000000000000000 [ 55.918052][ T8094] R10: fffffbfff117cc65 R11: 0000000000000000 R12: 0000000000000000 [ 55.926010][ T8094] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809c8160c0 [ 55.933969][ T8094] FS: 00007fca68427700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 55.942872][ T8094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.949425][ T8094] CR2: 00007ff332fee000 CR3: 0000000093314000 CR4: 00000000001406e0 [ 55.957392][ T8094] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.965393][ T8094] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.973344][ T8094] Call Trace: [ 55.976611][ T8094] ? mark_lock+0x107/0x1650 [ 55.981099][ T8094] ? lock_sock_nested+0xa8/0x120 [ 55.986028][ T8094] ? trace_lock_acquire+0x159/0x1d0 [ 55.991206][ T8094] lock_acquire+0x158/0x250 [ 55.995684][ T8094] ? j1939_sk_bind+0x387/0xac0 [ 56.000427][ T8094] ? j1939_sk_bind+0x387/0xac0 [ 56.005165][ T8094] _raw_spin_lock_bh+0x34/0x50 [ 56.009912][ T8094] ? j1939_sk_bind+0x387/0xac0 [ 56.014654][ T8094] j1939_sk_bind+0x387/0xac0 [ 56.019218][ T8094] __sys_bind+0x2c2/0x3a0 [ 56.023525][ T8094] ? prepare_exit_to_usermode+0x1f7/0x580 [ 56.029212][ T8094] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 56.034917][ T8094] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 56.040347][ T8094] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 56.046041][ T8094] __x64_sys_bind+0x7a/0x90 [ 56.050527][ T8094] do_syscall_64+0xf7/0x1c0 [ 56.055000][ T8094] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.060878][ T8094] RIP: 0033:0x45a219 [ 56.064758][ T8094] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.085265][ T8094] RSP: 002b:00007fca68426c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 56.093745][ T8094] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a219 [ 56.101689][ T8094] RDX: 0000000000000018 RSI: 0000000020000240 RDI: 0000000000000004 [ 56.109632][ T8094] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 56.117580][ T8094] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fca684276d4 [ 56.125522][ T8094] R13: 00000000004c057e R14: 00000000004d2c50 R15: 00000000ffffffff [ 56.133464][ T8094] Modules linked in: [ 56.137336][ T8094] ---[ end trace 48d421fb8490cfcb ]--- [ 56.142776][ T8094] RIP: 0010:__lock_acquire+0x86/0x1be0 [ 56.148202][ T8094] Code: 8a 04 30 84 c0 0f 85 66 12 00 00 83 3d 32 12 66 07 00 0f 84 91 12 00 00 83 3d 95 93 34 07 00 74 34 48 8b 44 24 10 48 c1 e8 03 <80> 3c 30 00 74 14 48 8b 7c 24 10 e8 2a 12 54 00 48 be 00 00 00 00 [ 56.167774][ T8094] RSP: 0018:ffff888092d37b80 EFLAGS: 00010006 [ 56.174767][ T8094] RAX: 0000000000000218 RBX: 0000000000000001 RCX: 0000000000000000 [ 56.183117][ T8094] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000010c0 [ 56.191074][ T8094] RBP: ffff888092d37cd8 R08: 0000000000000001 R09: 0000000000000000 [ 56.199301][ T8094] R10: fffffbfff117cc65 R11: 0000000000000000 R12: 0000000000000000 [ 56.207368][ T8094] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809c8160c0 [ 56.215320][ T8094] FS: 00007fca68427700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 56.224262][ T8094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.230823][ T8094] CR2: 00007ff332fee000 CR3: 0000000093314000 CR4: 00000000001406e0 [ 56.238780][ T8094] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.246738][ T8094] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.254690][ T8094] Kernel panic - not syncing: Fatal exception in interrupt [ 56.263336][ T8094] Kernel Offset: disabled [ 56.267673][ T8094] Rebooting in 86400 seconds..