[ 25.425478][ T26] audit: type=1800 audit(1560857802.087:24): pid=6822 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 syzkaller login: [ 50.527946][ T6990] IPVS: ftp: loaded support on port[0] = 21 [ 50.987150][ T6995] can: request_module (can-proto-0) failed. [ 51.885273][ T6995] can: request_module (can-proto-0) failed. Warning: Permanently added '10.128.0.204' (ECDSA) to the list of known hosts. 2019/06/18 11:37:16 parsed 1 programs 2019/06/18 11:37:16 executed programs: 0 [ 60.014759][ T7065] IPVS: ftp: loaded support on port[0] = 21 [ 60.087643][ T7068] IPVS: ftp: loaded support on port[0] = 21 [ 60.088435][ T7073] IPVS: ftp: loaded support on port[0] = 21 [ 60.096870][ T7070] IPVS: ftp: loaded support on port[0] = 21 [ 60.115784][ T7072] IPVS: ftp: loaded support on port[0] = 21 [ 60.154840][ T7065] chnl_net:caif_netlink_parms(): no params data found [ 60.191069][ T7075] IPVS: ftp: loaded support on port[0] = 21 [ 60.202035][ T7065] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.209445][ T7065] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.217542][ T7065] device bridge_slave_0 entered promiscuous mode [ 60.227250][ T7065] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.234637][ T7065] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.242734][ T7065] device bridge_slave_1 entered promiscuous mode [ 60.278269][ T7065] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 60.289754][ T7065] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 60.323103][ T7065] team0: Port device team_slave_0 added [ 60.337984][ T7065] team0: Port device team_slave_1 added [ 60.401132][ T7065] device hsr_slave_0 entered promiscuous mode [ 60.439707][ T7065] device hsr_slave_1 entered promiscuous mode [ 60.507191][ T7065] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.514412][ T7065] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.522164][ T7065] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.529223][ T7065] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.566804][ T7070] chnl_net:caif_netlink_parms(): no params data found [ 60.578346][ T7072] chnl_net:caif_netlink_parms(): no params data found [ 60.647207][ T7073] chnl_net:caif_netlink_parms(): no params data found [ 60.670541][ T7068] chnl_net:caif_netlink_parms(): no params data found [ 60.708996][ T7065] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.716318][ T7070] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.724133][ T7070] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.732134][ T7070] device bridge_slave_0 entered promiscuous mode [ 60.739831][ T7072] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.746986][ T7072] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.754597][ T7072] device bridge_slave_0 entered promiscuous mode [ 60.784769][ T7070] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.792850][ T7070] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.800825][ T7070] device bridge_slave_1 entered promiscuous mode [ 60.808005][ T7072] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.817105][ T7072] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.824865][ T7072] device bridge_slave_1 entered promiscuous mode [ 60.835804][ T7073] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.843312][ T7073] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.851030][ T7073] device bridge_slave_0 entered promiscuous mode [ 60.859761][ T7073] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.866932][ T7073] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.874686][ T7073] device bridge_slave_1 entered promiscuous mode [ 60.901183][ T7072] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 60.916849][ T7075] chnl_net:caif_netlink_parms(): no params data found [ 60.925285][ T7068] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.932524][ T7068] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.940124][ T7068] device bridge_slave_0 entered promiscuous mode [ 60.951574][ T7068] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.958775][ T7068] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.966425][ T7068] device bridge_slave_1 entered promiscuous mode [ 60.974936][ T7073] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 60.984746][ T7072] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 60.999175][ T7070] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 61.009902][ T7070] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 61.026593][ T7068] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 61.037103][ T7073] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 61.063535][ T7068] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 61.092930][ T7073] team0: Port device team_slave_0 added [ 61.098654][ T7075] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.106458][ T7075] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.115001][ T7075] device bridge_slave_0 entered promiscuous mode [ 61.122695][ T7072] team0: Port device team_slave_0 added [ 61.128382][ T7075] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.136345][ T7075] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.144346][ T7075] device bridge_slave_1 entered promiscuous mode [ 61.157523][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.166747][ T22] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.175026][ T22] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.183109][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 61.195213][ T7068] team0: Port device team_slave_0 added [ 61.203244][ T7065] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.210881][ T7073] team0: Port device team_slave_1 added [ 61.217427][ T7072] team0: Port device team_slave_1 added [ 61.236069][ T7070] team0: Port device team_slave_0 added [ 61.245141][ T7068] team0: Port device team_slave_1 added [ 61.311820][ T7068] device hsr_slave_0 entered promiscuous mode [ 61.349921][ T7068] device hsr_slave_1 entered promiscuous mode [ 61.431743][ T7072] device hsr_slave_0 entered promiscuous mode [ 61.469698][ T7072] device hsr_slave_1 entered promiscuous mode [ 61.510902][ T7075] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 61.520420][ T7070] team0: Port device team_slave_1 added [ 61.528160][ T7075] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 61.580942][ T7073] device hsr_slave_0 entered promiscuous mode [ 61.629802][ T7073] device hsr_slave_1 entered promiscuous mode [ 61.710512][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.720053][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.728334][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.735445][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.791025][ T7070] device hsr_slave_0 entered promiscuous mode [ 61.839620][ T7070] device hsr_slave_1 entered promiscuous mode [ 61.903220][ T2969] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.920731][ T2969] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.929594][ T2969] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.936639][ T2969] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.944496][ T2969] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.953590][ T2969] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.963450][ T7075] team0: Port device team_slave_0 added [ 61.977622][ T7075] team0: Port device team_slave_1 added [ 61.997030][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.006285][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.015021][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.023709][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.032387][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.040920][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.049445][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.082706][ T7065] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.094040][ T7065] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.160789][ T7075] device hsr_slave_0 entered promiscuous mode [ 62.199741][ T7075] device hsr_slave_1 entered promiscuous mode [ 62.269911][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.278501][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.300073][ T7068] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.319158][ T7065] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.339058][ T7072] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.351902][ T7073] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.367573][ T7068] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.375334][ T2969] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.384676][ T2969] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.400228][ T7072] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.424445][ T7070] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.432951][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.446863][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.455357][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.464326][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.473139][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.480694][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.488570][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.497478][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.506096][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.513219][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.520907][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.529472][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.537959][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.546580][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.554777][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.563564][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.573175][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.581100][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.589154][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.596958][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.610187][ T7072] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 62.620759][ T7072] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.635763][ T7073] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.645960][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.654890][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.667105][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.679196][ T7090] BUG: Dentry 000000004d0074ec{i=6917,n=/} still in use (2) [unmount of hugetlbfs hugetlbfs] [ 62.679678][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.690143][ T7090] WARNING: CPU: 0 PID: 7090 at fs/dcache.c:1528 umount_check.cold.51+0xd2/0x13f [ 62.702234][ T3759] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.706958][ T7090] Kernel panic - not syncing: panic_on_warn set ... [ 62.714157][ T3759] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.720747][ T7090] CPU: 0 PID: 7090 Comm: syz-executor.2 Not tainted 5.1.0+ #1 [ 62.720751][ T7090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.720754][ T7090] Call Trace: [ 62.720768][ T7090] dump_stack+0x113/0x167 [ 62.720778][ T7090] ? umount_check.cold.51+0xd2/0x13f [ 62.720788][ T7090] panic+0x212/0x40b [ 62.733772][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.735404][ T7090] ? __warn_printk+0xd6/0xd6 [ 62.748733][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.753276][ T7090] __warn.cold.8+0x1b/0x38 [ 62.753285][ T7090] ? umount_check.cold.51+0xd2/0x13f [ 62.753294][ T7090] report_bug+0x1a4/0x200 [ 62.753302][ T7090] do_error_trap+0x11b/0x200 [ 62.753308][ T7090] do_invalid_op+0x36/0x40 [ 62.753312][ T7090] ? umount_check.cold.51+0xd2/0x13f [ 62.753319][ T7090] invalid_op+0x14/0x20 [ 62.753324][ T7090] RIP: 0010:umount_check.cold.51+0xd2/0x13f [ 62.753330][ T7090] Code: c1 ea 03 80 3c 02 00 75 79 49 81 c4 68 06 00 00 41 89 d8 48 89 f1 41 54 4d 8b 0e 4c 89 ea 48 c7 c7 20 b3 f4 86 e8 1b 6c ae ff <0f> 0b 58 e9 00 48 ff ff 48 89 75 d8 e8 6b a5 f2 ff 48 8b 75 d8 e9 [ 62.753333][ T7090] RSP: 0018:ffff888084e07c28 EFLAGS: 00010282 [ 62.753338][ T7090] RAX: 000000000000005b RBX: 0000000000000002 RCX: 0000000000000000 [ 62.753341][ T7090] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff89b40c80 [ 62.753345][ T7090] RBP: ffff888084e07c58 R08: ffffed1015d46011 R09: ffffed1015d46010 [ 62.753348][ T7090] R10: ffffed1015d46010 R11: ffff8880aea30087 R12: ffff88808ea16be8 [ 62.753351][ T7090] R13: 0000000000006917 R14: ffffffff882dccc0 R15: ffff88808ea16674 [ 62.753365][ T7090] ? umount_check.cold.51+0xd2/0x13f [ 62.753371][ T7090] d_walk+0x19b/0x6b0 [ 62.765147][ T3759] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.770304][ T7090] ? kasan_check_read+0x11/0x20 [ 62.770311][ T7090] ? do_raw_spin_unlock+0x54/0x260 [ 62.770317][ T7090] ? select_collect+0x360/0x360 [ 62.770324][ T7090] do_one_tree+0x1f/0x40 [ 62.770329][ T7090] shrink_dcache_for_umount+0x56/0x120 [ 62.770335][ T7090] generic_shutdown_super+0x61/0x330 [ 62.770340][ T7090] kill_anon_super+0x38/0x60 [ 62.770344][ T7090] kill_litter_super+0x39/0x50 [ 62.770349][ T7090] deactivate_locked_super+0x77/0xd0 [ 62.770354][ T7090] deactivate_super+0x136/0x150 [ 62.770359][ T7090] ? mount_ns+0x170/0x170 [ 62.770365][ T7090] ? dput.part.27+0x2a/0x480 [ 62.770370][ T7090] ? dput.part.27+0x126/0x480 [ 62.770380][ T7090] cleanup_mnt+0xa3/0x140 [ 62.770385][ T7090] __cleanup_mnt+0xd/0x10 [ 62.770391][ T7090] task_work_run+0x108/0x180 [ 62.770401][ T7090] exit_to_usermode_loop+0x1a9/0x200 [ 62.770408][ T7090] do_syscall_64+0x445/0x520 [ 62.770418][ T7090] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.770423][ T7090] RIP: 0033:0x412fb1 [ 62.770428][ T7090] Code: 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 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 62.770431][ T7090] RSP: 002b:00007ffc6ff712e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 62.770437][ T7090] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000412fb1 [ 62.770440][ T7090] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 62.770443][ T7090] RBP: 0000000000000001 R08: ffffffffffffffff R09: ffffffffffffffff [ 62.770446][ T7090] R10: 00007ffc6ff713c0 R11: 0000000000000293 R12: 00000000007601e8 [ 62.770449][ T7090] R13: 000000000000f4b5 R14: 000000000000f4e2 R15: 000000000075bf2c [ 62.777229][ T7090] Kernel Offset: disabled [ 63.075809][ T7090] Rebooting in 86400 seconds..