[ 46.214367][ T26] audit: type=1800 audit(1554782404.373:25): pid=7697 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.250536][ T26] audit: type=1800 audit(1554782404.373:26): pid=7697 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.292604][ T26] audit: type=1800 audit(1554782404.383:27): pid=7697 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 46.313810][ T26] audit: type=1800 audit(1554782404.383:28): pid=7697 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] 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 Warning: Permanently added '10.128.0.215' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 66.620580][ T7861] WARNING: CPU: 1 PID: 7861 at fs/attr.c:234 notify_change+0xca2/0xfb0 [ 66.648471][ T7861] Kernel panic - not syncing: panic_on_warn set ... [ 66.663003][ T7861] CPU: 1 PID: 7861 Comm: syz-executor484 Not tainted 5.1.0-rc4+ #59 [ 66.674524][ T7861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.687591][ T7861] Call Trace: [ 66.692800][ T7861] dump_stack+0x172/0x1f0 [ 66.697797][ T7861] ? notify_change+0xca0/0xfb0 [ 66.703458][ T7861] panic+0x2cb/0x65c [ 66.710019][ T7861] ? __warn_printk+0xf3/0xf3 [ 66.715700][ T7861] ? notify_change+0xca2/0xfb0 [ 66.720849][ T7861] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 66.727489][ T7861] ? __warn.cold+0x5/0x45 [ 66.731928][ T7861] ? __warn+0xe8/0x1d0 [ 66.736064][ T7861] ? notify_change+0xca2/0xfb0 [ 66.741896][ T7861] __warn.cold+0x20/0x45 [ 66.748938][ T7861] ? notify_change+0xca2/0xfb0 [ 66.754697][ T7861] report_bug+0x263/0x2b0 [ 66.763314][ T7861] do_error_trap+0x11b/0x200 [ 66.770824][ T7861] do_invalid_op+0x37/0x50 [ 66.776514][ T7861] ? notify_change+0xca2/0xfb0 [ 66.788417][ T7861] invalid_op+0x14/0x20 [ 66.797375][ T7861] RIP: 0010:notify_change+0xca2/0xfb0 [ 66.805787][ T7861] Code: 14 52 0a 00 e8 1f a3 b7 ff 4c 8b 7c 24 20 4c 89 ff e8 02 88 4a 01 89 de 4c 89 ff e8 e8 a3 4a 01 e9 33 fa ff ff e8 fe a2 b7 ff <0f> 0b e9 42 f4 ff ff e8 f2 a2 b7 ff 44 89 f3 4c 89 ea 48 b8 00 00 [ 66.830772][ T7861] RSP: 0018:ffff88808b4f74c0 EFLAGS: 00010293 [ 66.838142][ T7861] RAX: ffff8880a42a8600 RBX: 0000000000004200 RCX: ffffffff81b8e042 [ 66.849272][ T7861] RDX: 0000000000000000 RSI: ffffffff81b8ec02 RDI: 0000000000000007 [ 66.861260][ T7861] RBP: ffff88808b4f7510 R08: ffff8880a42a8600 R09: ffffed1014b92244 [ 66.878210][ T7861] R10: ffffed1014b92243 R11: ffff8880a5c9121f R12: ffff88808b4f7560 [ 66.889902][ T7861] R13: ffff8880a5c91140 R14: 0000000000000000 R15: ffff88808b4f75f0 [ 66.905450][ T7861] ? notify_change+0xe2/0xfb0 [ 66.911887][ T7861] ? notify_change+0xca2/0xfb0 [ 66.918758][ T7861] file_remove_privs+0x2a9/0x480 [ 66.924666][ T7861] ? dentry_needs_remove_privs.part.0+0x80/0x80 [ 66.932665][ T7861] ? __kernel_text_address+0xd/0x40 [ 66.938613][ T7861] ? unwind_get_return_address+0x61/0xa0 [ 66.946666][ T7861] ? __save_stack_trace+0x99/0x100 [ 66.955078][ T7861] __generic_file_write_iter+0x15e/0x630 [ 66.962711][ T7861] blkdev_write_iter+0x23a/0x440 [ 66.969372][ T7861] ? __blkdev_get+0x1660/0x1660 [ 66.974589][ T7861] ? current_time+0x6b/0x140 [ 66.980549][ T7861] ? find_held_lock+0x35/0x130 [ 66.986144][ T7861] do_iter_readv_writev+0x5e1/0x8e0 [ 66.992800][ T7861] ? vfs_dedupe_file_range+0x780/0x780 [ 66.999726][ T7861] ? rw_verify_area+0x118/0x360 [ 67.012892][ T7861] do_iter_write+0x184/0x610 [ 67.017732][ T7861] ? rcu_read_lock_sched_held+0x110/0x130 [ 67.024385][ T7861] ? __kmalloc+0x5d5/0x740 [ 67.029146][ T7861] vfs_iter_write+0x77/0xb0 [ 67.034100][ T7861] iter_file_splice_write+0x662/0xbe0 [ 67.040417][ T7861] ? atime_needs_update+0x5f0/0x5f0 [ 67.046315][ T7861] ? page_cache_pipe_buf_confirm+0x2b0/0x2b0 [ 67.053270][ T7861] ? rw_verify_area+0x118/0x360 [ 67.058515][ T7861] ? page_cache_pipe_buf_confirm+0x2b0/0x2b0 [ 67.064890][ T7861] direct_splice_actor+0x126/0x1a0 [ 67.070522][ T7861] splice_direct_to_actor+0x369/0x970 [ 67.076363][ T7861] ? generic_pipe_buf_nosteal+0x10/0x10 [ 67.082246][ T7861] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.088891][ T7861] ? do_splice_to+0x190/0x190 [ 67.093824][ T7861] ? rw_verify_area+0x118/0x360 [ 67.099160][ T7861] do_splice_direct+0x1da/0x2a0 [ 67.104182][ T7861] ? splice_direct_to_actor+0x970/0x970 [ 67.109763][ T7861] ? rw_verify_area+0x118/0x360 [ 67.116229][ T7861] do_sendfile+0x597/0xd00 [ 67.120847][ T7861] ? do_compat_pwritev64+0x1c0/0x1c0 [ 67.126945][ T7861] ? __x64_sys_futex+0x404/0x590 [ 67.132467][ T7861] __x64_sys_sendfile64+0x1dd/0x220 [ 67.138171][ T7861] ? __ia32_sys_sendfile+0x230/0x230 [ 67.144319][ T7861] ? do_syscall_64+0x26/0x610 [ 67.150177][ T7861] ? lockdep_hardirqs_on+0x418/0x5d0 [ 67.156272][ T7861] ? trace_hardirqs_on+0x67/0x230 [ 67.163952][ T7861] do_syscall_64+0x103/0x610 [ 67.170050][ T7861] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.177556][ T7861] RIP: 0033:0x44a949 [ 67.182495][ T7861] Code: e8 8c b5 02 00 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 2b cc fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.204124][ T7861] RSP: 002b:00007fadd4d1dce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 67.213321][ T7861] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 000000000044a949 [ 67.222867][ T7861] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 [ 67.231552][ T7861] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 67.240259][ T7861] R10: 0000400000080001 R11: 0000000000000246 R12: 00000000006dbc4c [ 67.248451][ T7861] R13: 00007fff0edd0acf R14: 00007fadd4d1e9c0 R15: 20c49ba5e353f7cf [ 67.258592][ T7861] Kernel Offset: disabled [ 67.263486][ T7861] Rebooting in 86400 seconds..