[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 55.847464][ T26] audit: type=1800 audit(1573122125.329:25): pid=8653 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 55.869680][ T26] audit: type=1800 audit(1573122125.329:26): pid=8653 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 55.906426][ T26] audit: type=1800 audit(1573122125.329:27): pid=8653 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 '10.128.10.13' (ECDSA) to the list of known hosts. 2019/11/07 10:37:10 parsed 1 programs 2019/11/07 10:37:12 executed programs: 0 syzkaller login: [ 963.056827][ T8823] IPVS: ftp: loaded support on port[0] = 21 [ 963.117928][ T8823] chnl_net:caif_netlink_parms(): no params data found [ 963.144202][ T8823] bridge0: port 1(bridge_slave_0) entered blocking state [ 963.152367][ T8823] bridge0: port 1(bridge_slave_0) entered disabled state [ 963.160252][ T8823] device bridge_slave_0 entered promiscuous mode [ 963.168416][ T8823] bridge0: port 2(bridge_slave_1) entered blocking state [ 963.175586][ T8823] bridge0: port 2(bridge_slave_1) entered disabled state [ 963.183131][ T8823] device bridge_slave_1 entered promiscuous mode [ 963.200276][ T8823] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 963.210935][ T8823] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 963.230206][ T8823] team0: Port device team_slave_0 added [ 963.237207][ T8823] team0: Port device team_slave_1 added [ 963.316443][ T8823] device hsr_slave_0 entered promiscuous mode [ 963.385053][ T8823] device hsr_slave_1 entered promiscuous mode [ 963.496566][ T8823] bridge0: port 2(bridge_slave_1) entered blocking state [ 963.503779][ T8823] bridge0: port 2(bridge_slave_1) entered forwarding state [ 963.511613][ T8823] bridge0: port 1(bridge_slave_0) entered blocking state [ 963.519310][ T8823] bridge0: port 1(bridge_slave_0) entered forwarding state [ 963.691505][ T8823] 8021q: adding VLAN 0 to HW filter on device bond0 [ 963.722626][ T8845] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 963.766478][ T8845] bridge0: port 1(bridge_slave_0) entered disabled state [ 963.785077][ T8845] bridge0: port 2(bridge_slave_1) entered disabled state [ 963.816711][ T8845] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 963.850911][ T8823] 8021q: adding VLAN 0 to HW filter on device team0 [ 963.876082][ T8845] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 963.894771][ T8845] bridge0: port 1(bridge_slave_0) entered blocking state [ 963.901854][ T8845] bridge0: port 1(bridge_slave_0) entered forwarding state [ 963.956394][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 963.966025][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 963.973091][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 964.016432][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 964.045699][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 964.054260][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 964.088917][ T8823] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 964.107549][ T8823] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 964.129219][ T8845] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 964.137825][ T8845] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 964.173019][ T8823] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 964.211066][ T8853] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 964.225599][ T8853] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready 2019/11/07 10:37:17 executed programs: 5 2019/11/07 10:37:23 executed programs: 12 2019/11/07 10:37:29 executed programs: 19 2019/11/07 10:37:35 executed programs: 26 [ 988.147668][ T9013] kasan: CONFIG_KASAN_INLINE enabled [ 988.153100][ T9013] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 988.161236][ T9013] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 988.168222][ T9013] CPU: 1 PID: 9013 Comm: syz-executor.0 Not tainted 5.4.0-rc6+ #0 [ 988.175998][ T9013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 988.186248][ T9013] RIP: 0010:j1939_sk_sendmsg+0x6d6/0x1450 [ 988.191958][ T9013] Code: e8 af 08 f4 fa 48 8b 8d 50 ff ff ff b8 f9 06 00 00 48 81 f9 f9 06 00 00 48 0f 46 c1 48 89 85 60 ff ff ff 48 8b 85 20 ff ff ff <80> 38 00 0f 85 fa 0a 00 00 48 8b 85 40 ff ff ff 48 8b 58 48 48 8b [ 988.211549][ T9013] RSP: 0018:ffff88808d16fa28 EFLAGS: 00010206 [ 988.217652][ T9013] RAX: dffffc0000000009 RBX: 0000000006fffff9 RCX: 0000000006fffff9 [ 988.226472][ T9013] RDX: 0000000000000000 RSI: ffffffff867f1c31 RDI: 0000000000000007 [ 988.234428][ T9013] RBP: ffff88808d16fb40 R08: ffff8880a1070080 R09: 0000000000000000 [ 988.242393][ T9013] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 988.250340][ T9013] R13: ffff8880a2719510 R14: 0000000000000000 R15: 0000000000000000 [ 988.258326][ T9013] FS: 00007fe8fbd23700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 988.267236][ T9013] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 988.273808][ T9013] CR2: 00007f39fd5b0000 CR3: 00000000a75bc000 CR4: 00000000001406e0 [ 988.281756][ T9013] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 988.289809][ T9013] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 988.297759][ T9013] Call Trace: [ 988.301031][ T9013] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 988.306656][ T9013] ? j1939_sk_recv_match_one+0x780/0x780 [ 988.312268][ T9013] ? apparmor_socket_sendmsg+0x2a/0x30 [ 988.317707][ T9013] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 988.323926][ T9013] ? security_socket_sendmsg+0x8d/0xc0 [ 988.329366][ T9013] ? j1939_sk_recv_match_one+0x780/0x780 [ 988.335033][ T9013] sock_sendmsg+0xd7/0x130 [ 988.339429][ T9013] ___sys_sendmsg+0x803/0x920 [ 988.344082][ T9013] ? copy_msghdr_from_user+0x440/0x440 [ 988.349518][ T9013] ? __kasan_check_read+0x11/0x20 [ 988.354518][ T9013] ? __fget+0x384/0x560 [ 988.358651][ T9013] ? __fget_light+0x1a9/0x230 [ 988.363310][ T9013] ? __fdget+0x1b/0x20 [ 988.367368][ T9013] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 988.373631][ T9013] __sys_sendmsg+0x105/0x1d0 [ 988.378208][ T9013] ? __sys_sendmsg_sock+0xd0/0xd0 [ 988.383232][ T9013] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 988.388666][ T9013] ? do_syscall_64+0x26/0x760 [ 988.393371][ T9013] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 988.399412][ T9013] ? do_syscall_64+0x26/0x760 [ 988.404067][ T9013] __x64_sys_sendmsg+0x78/0xb0 [ 988.408806][ T9013] do_syscall_64+0xfa/0x760 [ 988.413306][ T9013] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 988.419171][ T9013] RIP: 0033:0x45a219 [ 988.423041][ T9013] 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 [ 988.442633][ T9013] RSP: 002b:00007fe8fbd22c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 988.451976][ T9013] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a219 [ 988.459923][ T9013] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 [ 988.467869][ T9013] RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 [ 988.475817][ T9013] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe8fbd236d4 [ 988.483767][ T9013] R13: 00000000004c804e R14: 00000000004de4d0 R15: 00000000ffffffff [ 988.491726][ T9013] Modules linked in: [ 988.495987][ T9013] ---[ end trace 60a1204aca702537 ]--- [ 988.501468][ T9013] RIP: 0010:j1939_sk_sendmsg+0x6d6/0x1450 [ 988.507220][ T9013] Code: e8 af 08 f4 fa 48 8b 8d 50 ff ff ff b8 f9 06 00 00 48 81 f9 f9 06 00 00 48 0f 46 c1 48 89 85 60 ff ff ff 48 8b 85 20 ff ff ff <80> 38 00 0f 85 fa 0a 00 00 48 8b 85 40 ff ff ff 48 8b 58 48 48 8b [ 988.526857][ T9013] RSP: 0018:ffff88808d16fa28 EFLAGS: 00010206 [ 988.532912][ T9013] RAX: dffffc0000000009 RBX: 0000000006fffff9 RCX: 0000000006fffff9 [ 988.540900][ T9013] RDX: 0000000000000000 RSI: ffffffff867f1c31 RDI: 0000000000000007 [ 988.548889][ T9013] RBP: ffff88808d16fb40 R08: ffff8880a1070080 R09: 0000000000000000 [ 988.557288][ T9013] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 988.565314][ T9013] R13: ffff8880a2719510 R14: 0000000000000000 R15: 0000000000000000 [ 988.573453][ T9013] FS: 00007fe8fbd23700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 988.582487][ T9013] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 988.589080][ T9013] CR2: 00007f39fd5b0000 CR3: 00000000a75bc000 CR4: 00000000001406e0 [ 988.597061][ T9013] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 988.605083][ T9013] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 988.613048][ T9013] Kernel panic - not syncing: Fatal exception [ 988.620405][ T9013] Kernel Offset: disabled [ 988.624735][ T9013] Rebooting in 86400 seconds..