[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 38.802709] audit: type=1800 audit(1546508428.720:25): pid=7875 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.823952] audit: type=1800 audit(1546508428.720:26): pid=7875 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.852154] audit: type=1800 audit(1546508428.720:27): pid=7875 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 '10.128.0.95' (ECDSA) to the list of known hosts. 2019/01/03 09:40:40 parsed 1 programs 2019/01/03 09:40:42 executed programs: 0 syzkaller login: [ 52.427264] IPVS: ftp: loaded support on port[0] = 21 [ 52.490853] chnl_net:caif_netlink_parms(): no params data found [ 52.523450] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.530323] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.537440] device bridge_slave_0 entered promiscuous mode [ 52.544669] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.551545] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.559258] device bridge_slave_1 entered promiscuous mode [ 52.575339] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.584660] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.602310] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 52.609867] team0: Port device team_slave_0 added [ 52.615252] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 52.622535] team0: Port device team_slave_1 added [ 52.627920] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.635161] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.709564] device hsr_slave_0 entered promiscuous mode [ 52.747619] device hsr_slave_1 entered promiscuous mode [ 52.798046] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.804948] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.819064] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.825467] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.832443] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.838851] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.872814] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 52.879245] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.887050] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 52.896051] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.916199] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.923505] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.931823] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.941973] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 52.948191] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.956507] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.964686] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.971084] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.988635] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.996413] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.002831] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.011156] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.019779] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.034361] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.044240] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.054766] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 53.062537] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.070434] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.078371] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.085863] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.098418] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 53.108409] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.251043] kasan: CONFIG_KASAN_INLINE enabled [ 53.255823] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 53.263340] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 53.269573] CPU: 0 PID: 8065 Comm: syz-executor0 Not tainted 4.20.0+ #6 [ 53.276326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.285687] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 53.291225] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 26 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 d2 [ 53.310125] RSP: 0018:ffff888089b67120 EFLAGS: 00010203 [ 53.315480] RAX: dffffc0000000000 RBX: ffff8880a85c32c0 RCX: 0000000000000000 [ 53.322739] RDX: 0000000000000001 RSI: ffffffff87b5e7c2 RDI: 000000000000000e [ 53.330008] RBP: ffff888089b673e8 R08: ffff88808556c480 R09: ffff8880a50b1118 [ 53.337276] R10: ffffed1014a16218 R11: ffff8880a50b10c7 R12: ffff8880855098a0 [ 53.344541] R13: ffff8880a50b10c8 R14: ffff8880a85c3720 R15: 0000000000000000 [ 53.351807] FS: 00007f91ed60f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 53.360023] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.365892] CR2: 0000000000000000 CR3: 00000000907b2000 CR4: 00000000001406f0 [ 53.373153] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.380413] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.387676] Call Trace: [ 53.390261] ? __kmalloc_node_track_caller+0x4e/0x70 [ 53.395360] ? __alloc_skb+0x185/0x730 [ 53.399244] ? smc_diag_handler_dump+0x350/0x350 [ 53.403993] ? sock_sendmsg+0xdd/0x130 [ 53.407873] ? ___sys_sendmsg+0x7ec/0x910 [ 53.412033] ? __sys_sendmsg+0x112/0x270 [ 53.416090] ? __sys_sendmsg+0x230/0x270 [ 53.420147] ? do_syscall_64+0x1a3/0x800 [ 53.424210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.429774] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.435330] ? check_preemption_disabled+0x48/0x290 [ 53.440341] ? __lock_is_held+0xb6/0x140 [ 53.444398] ? __kmalloc_node_track_caller+0x3d/0x70 [ 53.449498] ? lock_acquire+0x1db/0x570 [ 53.453490] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 53.458602] ? lock_release+0xc40/0xc40 [ 53.462751] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.468294] ? kasan_check_write+0x14/0x20 [ 53.472535] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 53.477552] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 53.482564] ? find_held_lock+0x35/0x120 [ 53.486631] smc_diag_dump+0x27/0x80 [ 53.490340] netlink_dump+0x5f2/0x1070 [ 53.494224] ? netlink_broadcast+0x50/0x50 [ 53.498464] __netlink_dump_start+0x5b4/0x7e0 [ 53.502961] smc_diag_handler_dump+0x2a7/0x350 [ 53.507537] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 53.512213] ? lock_downgrade+0x910/0x910 [ 53.516355] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 53.521543] ? rcu_read_unlock_special+0x380/0x380 [ 53.526469] sock_diag_rcv_msg+0x322/0x410 [ 53.530702] netlink_rcv_skb+0x17d/0x410 [ 53.534762] ? sock_diag_bind+0x80/0x80 [ 53.538735] ? netlink_ack+0xba0/0xba0 [ 53.542642] sock_diag_rcv+0x2b/0x40 [ 53.546350] netlink_unicast+0x574/0x770 [ 53.550408] ? netlink_attachskb+0x980/0x980 [ 53.554855] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.560388] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 53.565400] netlink_sendmsg+0xa05/0xf90 [ 53.569453] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.574987] ? netlink_unicast+0x770/0x770 [ 53.579218] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 53.584055] ? apparmor_socket_sendmsg+0x2a/0x30 [ 53.588802] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.594336] ? security_socket_sendmsg+0x93/0xc0 [ 53.599085] ? netlink_unicast+0x770/0x770 [ 53.603318] sock_sendmsg+0xdd/0x130 [ 53.607029] ___sys_sendmsg+0x7ec/0x910 [ 53.611005] ? copy_msghdr_from_user+0x570/0x570 [ 53.615752] ? iterate_fd+0x4b0/0x4b0 [ 53.619547] ? ___might_sleep+0x1e7/0x310 [ 53.623712] ? __might_fault+0x12b/0x1e0 [ 53.627767] ? find_held_lock+0x35/0x120 [ 53.631820] ? __might_fault+0x12b/0x1e0 [ 53.635878] ? __fget_light+0x2db/0x420 [ 53.639843] ? fget_raw+0x20/0x20 [ 53.643290] ? lock_release+0xc40/0xc40 [ 53.647263] ? trace_hardirqs_off_caller+0x300/0x300 [ 53.652367] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.657904] ? __fdget+0x1b/0x20 [ 53.661261] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.666795] ? sockfd_lookup_light+0xc2/0x160 [ 53.671287] __sys_sendmsg+0x112/0x270 [ 53.675169] ? __ia32_sys_shutdown+0x80/0x80 [ 53.679583] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.684966] ? trace_hardirqs_off_caller+0x300/0x300 [ 53.690067] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.694824] __x64_sys_sendmsg+0x78/0xb0 [ 53.698879] do_syscall_64+0x1a3/0x800 [ 53.702764] ? syscall_return_slowpath+0x5f0/0x5f0 [ 53.707693] ? prepare_exit_to_usermode+0x232/0x3b0 [ 53.712712] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.717554] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.722733] RIP: 0033:0x457ec9 [ 53.725921] Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 53.744816] RSP: 002b:00007f91ed60ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 53.752515] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 53.759777] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000007 [ 53.767035] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 53.774297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f91ed60f6d4 [ 53.781559] R13: 00000000004c5188 R14: 00000000004d8a10 R15: 00000000ffffffff [ 53.788847] Modules linked in: [ 53.793256] ---[ end trace 907c13961a0a020e ]--- [ 53.798050] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 53.803595] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 26 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 d2 [ 53.822522] RSP: 0018:ffff888089b67120 EFLAGS: 00010203 [ 53.827898] RAX: dffffc0000000000 RBX: ffff8880a85c32c0 RCX: 0000000000000000 [ 53.835161] RDX: 0000000000000001 RSI: ffffffff87b5e7c2 RDI: 000000000000000e [ 53.842442] RBP: ffff888089b673e8 R08: ffff88808556c480 R09: ffff8880a50b1118 [ 53.849737] R10: ffffed1014a16218 R11: ffff8880a50b10c7 R12: ffff8880855098a0 [ 53.857001] R13: ffff8880a50b10c8 R14: ffff8880a85c3720 R15: 0000000000000000 [ 53.864291] FS: 00007f91ed60f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 53.872527] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.878418] CR2: 0000000000000000 CR3: 00000000907b2000 CR4: 00000000001406f0 [ 53.885686] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.892971] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.900255] Kernel panic - not syncing: Fatal exception [ 53.906525] Kernel Offset: disabled [ 53.910145] Rebooting in 86400 seconds..