Warning: Permanently added '10.128.1.71' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 141.868391] audit: type=1800 audit(1644835315.592:2): pid=7981 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor756" name="bus" dev="sda1" ino=13840 res=0 [ 141.891736] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 141.905978] File: /root/bus PID: 7981 Comm: syz-executor756 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 142.049228] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 142.060490] File: /root/bus PID: 8003 Comm: syz-executor756 executing program executing program executing program executing program executing program executing program executing program executing program [ 142.316921] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 142.328506] File: /root/bus PID: 8038 Comm: syz-executor756 executing program executing program executing program executing program executing program executing program [ 142.435810] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 142.447337] File: /root/bus PID: 8064 Comm: syz-executor756 [ 142.470010] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! executing program executing program executing program executing program executing program [ 142.494274] File: /root/bus PID: 8066 Comm: syz-executor756 executing program executing program executing program executing program executing program [ 142.572578] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 142.584564] File: /root/bus PID: 8086 Comm: syz-executor756 executing program executing program executing program [ 142.645496] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 142.656799] File: /root/bus PID: 8101 Comm: syz-executor756 executing program executing program executing program executing program executing program executing program [ 142.695912] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 142.730368] File: /root/bus PID: 8113 Comm: syz-executor756 executing program executing program executing program executing program executing program executing program [ 142.818625] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 142.830607] File: /root/bus PID: 8126 Comm: syz-executor756 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 143.316890] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 143.328077] File: /root/bus PID: 8184 Comm: syz-executor756 executing program [ 143.414361] ------------[ cut here ]------------ [ 143.419142] WARNING: CPU: 0 PID: 8207 at fs/ext4/inode.c:3892 ext4_set_page_dirty+0xe8/0x130 [ 143.427706] Kernel panic - not syncing: panic_on_warn set ... [ 143.427706] [ 143.435059] CPU: 0 PID: 8207 Comm: syz-executor756 Not tainted 4.14.266-syzkaller #0 [ 143.442928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 143.452269] Call Trace: [ 143.454840] dump_stack+0x1b2/0x281 [ 143.458452] panic+0x1f9/0x42d [ 143.461622] ? add_taint.cold+0x16/0x16 [ 143.465579] ? ext4_set_page_dirty+0xe8/0x130 [ 143.470054] ? ext4_set_page_dirty+0xe8/0x130 [ 143.474530] __warn.cold+0x20/0x44 [ 143.478052] ? ist_end_non_atomic+0x10/0x10 [ 143.482356] ? ext4_set_page_dirty+0xe8/0x130 [ 143.486837] report_bug+0x208/0x250 [ 143.490446] do_error_trap+0x195/0x2d0 [ 143.494316] ? math_error+0x2d0/0x2d0 [ 143.498098] ? follow_page_mask+0xa6/0x18a0 [ 143.502489] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 143.507312] invalid_op+0x1b/0x40 [ 143.510771] RIP: 0010:ext4_set_page_dirty+0xe8/0x130 [ 143.515856] RSP: 0018:ffff8880b2b37a58 EFLAGS: 00010297 [ 143.521206] RAX: ffff8880998c2340 RBX: ffffea00022fcec0 RCX: 0000000000000001 [ 143.528454] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffea00022fcee0 [ 143.535754] RBP: ffffea00022fcec0 R08: 0000000000000001 R09: ffffed10117e77ff [ 143.543010] R10: ffff88808bf3bfff R11: 0000000000000000 R12: ffffea000244afa0 [ 143.550258] R13: ffffea000244afa0 R14: dffffc0000000000 R15: ffffea00022fcec0 [ 143.557524] ? ext4_set_page_dirty+0xe8/0x130 [ 143.562002] ? ext4_readpages+0x100/0x100 [ 143.566229] set_page_dirty+0x148/0x2a0 [ 143.570189] set_page_dirty_lock+0x61/0xa0 [ 143.574403] process_vm_rw_core.constprop.0+0x4a1/0xa40 [ 143.579757] ? pcpu_free_vm_areas+0xb0/0xb0 [ 143.584063] ? __might_fault+0x177/0x1b0 [ 143.588102] ? _copy_from_user+0x96/0x100 [ 143.592227] ? rw_copy_check_uvector+0x1dd/0x2b0 [ 143.596961] ? dup_iter+0x240/0x240 [ 143.600570] process_vm_rw+0x1c2/0x1f0 [ 143.604437] ? compat_process_vm_rw+0x1f0/0x1f0 [ 143.609095] ? vm_insert_page+0x7c0/0x7c0 [ 143.613226] ? __do_page_fault+0x571/0xad0 [ 143.617442] ? lock_downgrade+0x740/0x740 [ 143.621572] SyS_process_vm_writev+0x39/0x50 [ 143.625958] ? SyS_process_vm_readv+0x50/0x50 [ 143.630432] do_syscall_64+0x1d5/0x640 [ 143.634301] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 143.639473] RIP: 0033:0x7f643df46b29 [ 143.643159] RSP: 002b:00007f643ded72f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000137 [ 143.650845] RAX: ffffffffffffffda RBX: 00007f643dfce438 RCX: 00007f643df46b29 [ 143.658094] RDX: 0000000000000001 RSI: 0000000020c22000 RDI: 000000000000200f [ 143.665342] RBP: 00007f643dfce430 R08: 0000000000000001 R09: 0000000000000000 [ 143.672599] R10: 0000000020c22fa0 R11: 0000000000000246 R12: 00007f643dfce43c [ 143.679846] R13: 00007f643df9c074 R14: 65732f636f72702f R15: 0000000000022000 [ 143.687364] Kernel Offset: disabled [ 143.691011] Rebooting in 86400 seconds..