Warning: Permanently added '10.128.0.141' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program 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 executing program executing program executing program executing program executing program executing program [ 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 executing program executing program [ 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 executing program executing program executing program [ 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 executing program executing program executing program executing program [ 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! executing program [ 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..