[....] 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.
[   29.018778] kauditd_printk_skb: 7 callbacks suppressed
[   29.018789] audit: type=1800 audit(1543976438.347:29): pid=5851 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0
[   29.043765] audit: type=1800 audit(1543976438.347:30): pid=5851 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   33.018963] sshd (5991) used greatest stack depth: 15744 bytes left
Warning: Permanently added '10.128.0.97' (ECDSA) to the list of known hosts.
[  183.745122] IPVS: ftp: loaded support on port[0] = 21
[  183.746902] IPVS: ftp: loaded support on port[0] = 21
[  183.762767] IPVS: ftp: loaded support on port[0] = 21
[  183.765023] IPVS: ftp: loaded support on port[0] = 21
[  183.769514] IPVS: ftp: loaded support on port[0] = 21
[  183.776755] IPVS: ftp: loaded support on port[0] = 21
[  184.319676] bridge0: port 1(bridge_slave_0) entered blocking state
[  184.326696] bridge0: port 1(bridge_slave_0) entered disabled state
[  184.335565] device bridge_slave_0 entered promiscuous mode
[  184.343739] bridge0: port 1(bridge_slave_0) entered blocking state
[  184.350330] bridge0: port 1(bridge_slave_0) entered disabled state
[  184.357192] device bridge_slave_0 entered promiscuous mode
[  184.374391] bridge0: port 1(bridge_slave_0) entered blocking state
[  184.386154] bridge0: port 1(bridge_slave_0) entered disabled state
[  184.394684] device bridge_slave_0 entered promiscuous mode
[  184.402814] bridge0: port 1(bridge_slave_0) entered blocking state
[  184.412697] bridge0: port 1(bridge_slave_0) entered disabled state
[  184.420006] device bridge_slave_0 entered promiscuous mode
[  184.427979] bridge0: port 2(bridge_slave_1) entered blocking state
[  184.434998] bridge0: port 2(bridge_slave_1) entered disabled state
[  184.442371] device bridge_slave_1 entered promiscuous mode
[  184.449715] bridge0: port 2(bridge_slave_1) entered blocking state
[  184.456038] bridge0: port 2(bridge_slave_1) entered disabled state
[  184.463425] device bridge_slave_1 entered promiscuous mode
[  184.470271] bridge0: port 1(bridge_slave_0) entered blocking state
[  184.476628] bridge0: port 1(bridge_slave_0) entered disabled state
[  184.488817] device bridge_slave_0 entered promiscuous mode
[  184.496854] bridge0: port 2(bridge_slave_1) entered blocking state
[  184.503510] bridge0: port 2(bridge_slave_1) entered disabled state
[  184.510584] device bridge_slave_1 entered promiscuous mode
[  184.518005] bridge0: port 1(bridge_slave_0) entered blocking state
[  184.524889] bridge0: port 1(bridge_slave_0) entered disabled state
[  184.532234] device bridge_slave_0 entered promiscuous mode
[  184.540224] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[  184.547485] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[  184.555602] bridge0: port 2(bridge_slave_1) entered blocking state
[  184.564309] bridge0: port 2(bridge_slave_1) entered disabled state
[  184.575706] device bridge_slave_1 entered promiscuous mode
[  184.583499] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[  184.591888] bridge0: port 2(bridge_slave_1) entered blocking state
[  184.599053] bridge0: port 2(bridge_slave_1) entered disabled state
[  184.606079] device bridge_slave_1 entered promiscuous mode
[  184.614537] bridge0: port 2(bridge_slave_1) entered blocking state
[  184.621885] bridge0: port 2(bridge_slave_1) entered disabled state
[  184.628925] device bridge_slave_1 entered promiscuous mode
[  184.636221] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[  184.644826] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[  184.653847] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[  184.664228] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[  184.674443] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[  184.689461] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[  184.708117] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[  184.724261] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[  184.744826] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[  184.812173] bond0: Enslaving bond_slave_0 as an active interface with an up link
[  184.828507] bond0: Enslaving bond_slave_0 as an active interface with an up link
[  184.852548] bond0: Enslaving bond_slave_0 as an active interface with an up link
[  184.876492] bond0: Enslaving bond_slave_1 as an active interface with an up link
[  184.886512] bond0: Enslaving bond_slave_0 as an active interface with an up link
[  184.899555] bond0: Enslaving bond_slave_0 as an active interface with an up link
[  184.912439] bond0: Enslaving bond_slave_0 as an active interface with an up link
[  184.922292] bond0: Enslaving bond_slave_1 as an active interface with an up link
[  184.936776] bond0: Enslaving bond_slave_1 as an active interface with an up link
[  184.951468] bond0: Enslaving bond_slave_1 as an active interface with an up link
[  184.984322] bond0: Enslaving bond_slave_1 as an active interface with an up link
[  184.995125] bond0: Enslaving bond_slave_1 as an active interface with an up link
[  185.040812] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready
[  185.047818] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[  185.064862] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready
[  185.078058] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[  185.091136] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready
[  185.119032] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[  185.162325] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready
[  185.181201] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[  185.198622] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[  185.205979] team0: Port device team_slave_0 added
[  185.220774] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[  185.227916] team0: Port device team_slave_0 added
[  185.236549] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[  185.246423] team0: Port device team_slave_0 added
[  185.253317] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[  185.264654] team0: Port device team_slave_0 added
[  185.278521] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[  185.285822] team0: Port device team_slave_1 added
[  185.291820] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[  185.300240] team0: Port device team_slave_0 added
[  185.307296] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[  185.315995] team0: Port device team_slave_1 added
[  185.323214] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[  185.333536] team0: Port device team_slave_1 added
[  185.347093] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[  185.354338] team0: Port device team_slave_1 added
[  185.366633] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[  185.383486] team0: Port device team_slave_1 added
[  185.393424] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  185.402103] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  185.410494] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  185.424860] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[  185.433149] team0: Port device team_slave_0 added
[  185.450363] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  185.458190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  185.474262] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  185.487240] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  185.494989] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  185.505033] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  185.514834] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[  185.524588] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[  185.533665] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[  185.547055] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  185.559151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  185.568846] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  185.576397] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  185.584640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  185.592449] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  185.600395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  185.608943] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[  185.616029] team0: Port device team_slave_1 added
[  185.622866] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[  185.632946] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[  185.640902] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  185.653073] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  185.665450] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  185.673529] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[  185.681825] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[  185.689429] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[  185.701272] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[  185.712597] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[  185.720962] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  185.732275] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  185.740410] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  185.748078] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[  185.755858] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  185.763704] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[  185.771434] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  185.779144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[  185.787496] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[  185.808025] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  185.815877] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[  185.830811] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[  185.850962] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[  185.894431] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[  185.906411] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[  185.916583] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[  185.941197] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[  185.960152] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[  185.967819] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
[  186.247916] bridge0: port 2(bridge_slave_1) entered blocking state
[  186.254563] bridge0: port 2(bridge_slave_1) entered forwarding state
[  186.261602] bridge0: port 1(bridge_slave_0) entered blocking state
[  186.267970] bridge0: port 1(bridge_slave_0) entered forwarding state
[  186.290858] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
[  186.363246] bridge0: port 2(bridge_slave_1) entered blocking state
[  186.369706] bridge0: port 2(bridge_slave_1) entered forwarding state
[  186.376396] bridge0: port 1(bridge_slave_0) entered blocking state
[  186.382824] bridge0: port 1(bridge_slave_0) entered forwarding state
[  186.396897] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
[  186.407034] bridge0: port 2(bridge_slave_1) entered blocking state
[  186.413459] bridge0: port 2(bridge_slave_1) entered forwarding state
[  186.420161] bridge0: port 1(bridge_slave_0) entered blocking state
[  186.426528] bridge0: port 1(bridge_slave_0) entered forwarding state
[  186.434565] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
[  186.449235] bridge0: port 2(bridge_slave_1) entered blocking state
[  186.455606] bridge0: port 2(bridge_slave_1) entered forwarding state
[  186.462296] bridge0: port 1(bridge_slave_0) entered blocking state
[  186.468690] bridge0: port 1(bridge_slave_0) entered forwarding state
[  186.480129] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
RTNETLINK answers: No buffer space available
RTNETLINK answers: No buffer space available
RTNETLINK answers: No buffer space available
[  186.542534] bridge0: port 2(bridge_slave_1) entered blocking state
[  186.548964] bridge0: port 2(bridge_slave_1) entered forwarding state
[  186.555630] bridge0: port 1(bridge_slave_0) entered blocking state
[  186.562086] bridge0: port 1(bridge_slave_0) entered forwarding state
[  186.570521] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
RTNETLINK answers: Operation not supported
RTNETLINK answers: No buffer space available
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: No buffer space available
RTNETLINK answers: Operation not supported
[  186.652049] bridge0: port 2(bridge_slave_1) entered blocking state
[  186.658509] bridge0: port 2(bridge_slave_1) entered forwarding state
[  186.665152] bridge0: port 1(bridge_slave_0) entered blocking state
[  186.671569] bridge0: port 1(bridge_slave_0) entered forwarding state
[  186.682038] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
RTNETLINK answers: Operation not supported
RTNETLINK answers: No buffer space available
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
[  187.098276] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[  187.105741] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[  187.124936] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[  187.133390] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[  187.140916] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
[  187.147935] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Invalid argument
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
[  189.203595] 8021q: adding VLAN 0 to HW filter on device bond0
[  189.258455] 8021q: adding VLAN 0 to HW filter on device bond0
[  189.358408] 8021q: adding VLAN 0 to HW filter on device bond0
[  189.382725] 8021q: adding VLAN 0 to HW filter on device bond0
[  189.475851] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[  189.497329] 8021q: adding VLAN 0 to HW filter on device bond0
[  189.517598] 8021q: adding VLAN 0 to HW filter on device bond0
[  189.594018] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[  189.630050] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[  189.641634] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[  189.722188] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[  189.746741] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[  189.768953] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[  189.775404] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  189.788873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  189.880627] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[  189.892387] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  189.909300] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  189.944174] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[  189.954552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  189.965781] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  189.990603] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[  189.998265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  190.007161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  190.027401] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[  190.043921] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  190.053880] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  190.080989] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[  190.087166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[  190.096308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[  190.118859] 8021q: adding VLAN 0 to HW filter on device team0
[  190.213334] 8021q: adding VLAN 0 to HW filter on device team0
[  190.236193] 8021q: adding VLAN 0 to HW filter on device team0
[  190.288815] 8021q: adding VLAN 0 to HW filter on device team0
[  190.328466] 8021q: adding VLAN 0 to HW filter on device team0
[  190.348470] 8021q: adding VLAN 0 to HW filter on device team0
[  205.538371] ------------[ cut here ]------------
[  205.543278] DEBUG_LOCKS_WARN_ON(!hlock->nest_lock)
[  205.543301] ------------[ cut here ]------------
[  205.552991] Bad or missing usercopy whitelist? Kernel memory overwrite attempt detected to SLAB object 'task_struct' (offset 1432, size 2)!
[  205.565817] WARNING: CPU: 1 PID: 38 at mm/usercopy.c:83 usercopy_warn+0xee/0x110
[  205.573365] Kernel panic - not syncing: panic_on_warn set ...
[  205.579256] CPU: 1 PID: 38 Comm: ���ف���d������ Not tainted 4.20.0-rc4+ #326
[  205.586621] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  205.596643] ------------[ cut here ]------------
[  205.601404] kernel BUG at mm/slab.c:4425!
[  205.605643] WARNING: CPU: 1 PID: 38 at kernel/rcu/tree_plugin.h:438 __rcu_read_unlock+0x266/0x2e0
[  205.614715] Modules linked in:
[  205.617926] CPU: 1 PID: 38 Comm: ���ف���d������ Not tainted 4.20.0-rc4+ #326
[  205.625311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  205.634697] usercopy: Kernel memory overwrite attempt detected to SLAB object 'signal_cache' (offset 1328, size 23)!
[  205.645502] ------------[ cut here ]------------
[  205.650249] kernel BUG at mm/usercopy.c:102!
[  205.654736] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[  205.660093] CPU: 1 PID: 38 Comm: ���ف���d������ Not tainted 4.20.0-rc4+ #326
[  205.667450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  205.676857] RIP: 0010:usercopy_abort+0xbb/0xbd
[  205.681435] Code: c0 e8 47 ae b1 ff 48 8b 55 c0 49 89 d9 4d 89 f0 ff 75 c8 4c 89 e1 4c 89 ee 48 c7 c7 00 dc 34 88 ff 75 d0 41 57 e8 27 fa 97 ff <0f> 0b e8 1c ae b1 ff e8 97 13 f5 ff 8b 95 e4 fe ff ff 4c 89 e1 31
[  205.700334] RSP: 0018:ffff8881d9b49438 EFLAGS: 00010086
[  205.705694] RAX: 0000000000000068 RBX: ffffffff88291020 RCX: 0000000000000000
[  205.712972] RDX: 0000000000000000 RSI: ffffffff8165eae5 RDI: 0000000000000005
[  205.720236] RBP: ffff8881d9b49490 R08: ffff8881d9b4a440 R09: ffffed103b5e3ef8
[  205.727518] R10: ffffed103b5e3ef8 R11: ffff8881daf1f7c7 R12: ffffffff8914f805
[  205.734780] R13: ffffffff8834da60 R14: ffffffff8834d9a0 R15: ffffffff8834d960
[  205.742046] FS:  0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
[  205.750261] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  205.756142] CR2: 0000000000000130 CR3: 00000001bcffb000 CR4: 00000000001406e0
[  205.763404] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  205.770684] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  205.777969] Call Trace:
[  205.780536] Modules linked in:
[  205.783834] ---[ end trace d16e3e9858c5eac7 ]---
[  205.788791] RIP: 0010:usercopy_abort+0xbb/0xbd
[  205.793373] Code: c0 e8 47 ae b1 ff 48 8b 55 c0 49 89 d9 4d 89 f0 ff 75 c8 4c 89 e1 4c 89 ee 48 c7 c7 00 dc 34 88 ff 75 d0 41 57 e8 27 fa 97 ff <0f> 0b e8 1c ae b1 ff e8 97 13 f5 ff 8b 95 e4 fe ff ff 4c 89 e1 31
[  205.812269] RSP: 0018:ffff8881d9b49438 EFLAGS: 00010086
[  205.817632] RAX: 0000000000000068 RBX: ffffffff88291020 RCX: 0000000000000000
[  205.824899] RDX: 0000000000000000 RSI: ffffffff8165eae5 RDI: 0000000000000005
[  205.832159] RBP: ffff8881d9b49490 R08: ffff8881d9b4a440 R09: ffffed103b5e3ef8
[  205.839422] R10: ffffed103b5e3ef8 R11: ffff8881daf1f7c7 R12: ffffffff8914f805
[  205.846711] R13: ffffffff8834da60 R14: ffffffff8834d9a0 R15: ffffffff8834d960
[  205.853971] FS:  0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
[  205.862184] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  205.868054] CR2: 0000000000000130 CR3: 00000001bcffb000 CR4: 00000000001406e0
[  205.875318] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  205.882587] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  205.889847] Kernel panic - not syncing: Fatal exception in interrupt
[  205.897376] Kernel Offset: disabled
[  205.901112] Rebooting in 86400 seconds..