Warning: Permanently added '10.128.0.141' (ECDSA) to the list of known hosts.
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syzkaller login: [  527.072127][   T26] audit: type=1400 audit(1561333072.315:36): avc:  denied  { map } for  pid=9552 comm="syz-executor630" path="/root/syz-executor630706761" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
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[  527.106746][   T26] audit: type=1804 audit(1561333072.345:37): pid=9563 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
[  527.134287][   T26] audit: type=1804 audit(1561333072.365:38): pid=9570 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
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[  527.173268][   T26] audit: type=1804 audit(1561333072.375:39): pid=9574 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
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[  527.205168][   T26] audit: type=1804 audit(1561333072.375:40): pid=9567 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
[  527.231964][   T26] audit: type=1804 audit(1561333072.375:41): pid=9569 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
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[  527.256243][   T26] audit: type=1804 audit(1561333072.375:42): pid=9569 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
[  527.281580][   T26] audit: type=1804 audit(1561333072.385:43): pid=9569 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
[  527.310424][   T26] audit: type=1804 audit(1561333072.395:44): pid=9570 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
[  527.341639][ T9580] Page cache invalidation failure on direct I/O.  Possible data corruption due to collision with buffered I/O!
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[  527.348607][   T26] audit: type=1804 audit(1561333072.405:45): pid=9571 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor630" name="/root/bus" dev="sda1" ino=2339 res=1
[  527.359060][ T9580] File: /root/bus PID: 9580 Comm: syz-executor630
[  527.402730][ T9601] WARNING: CPU: 0 PID: 9601 at fs/ext4/inode.c:3926 ext4_set_page_dirty+0x30b/0x430
[  527.412157][ T9601] Kernel panic - not syncing: panic_on_warn set ...
[  527.418741][ T9601] CPU: 0 PID: 9601 Comm: syz-executor630 Not tainted 5.2.0-rc5+ #32
[  527.426698][ T9601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  527.439670][ T9601] Call Trace:
[  527.442999][ T9601]  dump_stack+0x172/0x1f0
[  527.447413][ T9601]  ? ext4_set_page_dirty+0x2d0/0x430
[  527.452731][ T9601]  panic+0x2cb/0x744
[  527.456618][ T9601]  ? __warn_printk+0xf3/0xf3
[  527.461329][ T9601]  ? ext4_set_page_dirty+0x30b/0x430
[  527.466631][ T9601]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  527.472867][ T9601]  ? __warn.cold+0x5/0x4d
[  527.477180][ T9601]  ? __warn+0xe8/0x1d0
[  527.481247][ T9601]  ? ext4_set_page_dirty+0x30b/0x430
[  527.486529][ T9601]  __warn.cold+0x20/0x4d
[  527.490844][ T9601]  ? ext4_set_page_dirty+0x30b/0x430
[  527.496121][ T9601]  report_bug+0x263/0x2b0
[  527.500570][ T9601]  do_error_trap+0x11b/0x200
[  527.505152][ T9601]  do_invalid_op+0x37/0x50
[  527.509556][ T9601]  ? ext4_set_page_dirty+0x30b/0x430
[  527.514966][ T9601]  invalid_op+0x14/0x20
[  527.519126][ T9601] RIP: 0010:ext4_set_page_dirty+0x30b/0x430
[  527.525012][ T9601] Code: ff e8 19 63 7e ff 49 8d 5f ff e9 e5 fd ff ff e8 0b 63 7e ff 48 c7 c6 a0 84 7b 87 4c 89 e7 e8 5c 8b a6 ff 0f 0b e8 f5 62 7e ff <0f> 0b e9 56 ff ff ff e8 e9 62 7e ff 4c 89 ea 48 b8 00 00 00 00 00
[  527.544619][ T9601] RSP: 0018:ffff888090ec79e0 EFLAGS: 00010293
[  527.550689][ T9601] RAX: ffff88808e3724c0 RBX: 0000000000000000 RCX: ffffffff81f25d90
[  527.558652][ T9601] RDX: 0000000000000000 RSI: ffffffff81f25e3b RDI: 0000000000000001
[  527.566609][ T9601] RBP: ffff888090ec7a08 R08: ffff88808e3724c0 R09: 0000000000000000
[  527.574583][ T9601] R10: ffffed10116e03ff R11: ffff88808b701fff R12: ffffea00022dc040
[  527.582629][ T9601] R13: ffffea00022dc048 R14: 0000000000000000 R15: ffffea0001de2ac8
[  527.590673][ T9601]  ? ext4_set_page_dirty+0x260/0x430
[  527.595954][ T9601]  ? ext4_set_page_dirty+0x30b/0x430
[  527.601231][ T9601]  ? ext4_readpages+0x120/0x120
[  527.606221][ T9601]  set_page_dirty+0x2e7/0x820
[  527.610889][ T9601]  set_page_dirty_lock+0x88/0xc0
[  527.615829][ T9601]  process_vm_rw_core.isra.0+0x527/0xb10
[  527.621556][ T9601]  ? alloc_vmap_area.cold+0x24/0x24
[  527.626746][ T9601]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  527.633009][ T9601]  ? _copy_from_user+0xdd/0x150
[  527.637855][ T9601]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  527.643616][ T9601]  ? rw_copy_check_uvector+0x2a6/0x330
[  527.649075][ T9601]  ? do_futex+0x17d/0x1d90
[  527.653489][ T9601]  process_vm_rw+0x21f/0x240
[  527.658079][ T9601]  ? process_vm_rw_core.isra.0+0xb10/0xb10
[  527.663876][ T9601]  ? exit_robust_list+0x2c0/0x2c0
[  527.668908][ T9601]  ? mark_held_locks+0xf0/0xf0
[  527.673667][ T9601]  ? __task_pid_nr_ns+0x1b1/0x530
[  527.678679][ T9601]  ? find_held_lock+0x35/0x130
[  527.683440][ T9601]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  527.689684][ T9601]  ? rcu_read_lock_sched_held+0x110/0x130
[  527.695435][ T9601]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  527.700895][ T9601]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  527.706366][ T9601]  ? do_syscall_64+0x26/0x680
[  527.711040][ T9601]  __x64_sys_process_vm_writev+0xe3/0x1a0
[  527.716759][ T9601]  do_syscall_64+0xfd/0x680
[  527.721250][ T9601]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  527.727132][ T9601] RIP: 0033:0x4468b9
[  527.731087][ T9601] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[  527.750831][ T9601] RSP: 002b:00007f214e38ada8 EFLAGS: 00000246 ORIG_RAX: 0000000000000137
[  527.759342][ T9601] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004468b9
[  527.767312][ T9601] RDX: 0000000000000001 RSI: 0000000020000540 RDI: 000000000000257c
[  527.775279][ T9601] RBP: 00000000006dbc40 R08: 0000000000000001 R09: 0000000000000000
[  527.783245][ T9601] R10: 00000000200003c0 R11: 0000000000000246 R12: 00000000006dbc4c
[  527.791210][ T9601] R13: 00007ffff3bbf69f R14: 00007f214e38b9c0 R15: 0000000000000000
[  527.800560][ T9601] Kernel Offset: disabled
[  527.804963][ T9601] Rebooting in 86400 seconds..