[ 38.633219][ T26] audit: type=1800 audit(1556190148.219:27): pid=7522 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 38.667497][ T26] audit: type=1800 audit(1556190148.219:28): pid=7522 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. [ 39.642155][ T26] audit: type=1800 audit(1556190149.269:29): pid=7522 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 39.663374][ T26] audit: type=1800 audit(1556190149.279:30): pid=7522 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.180' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.363664][ T7674] IPVS: ftp: loaded support on port[0] = 21 [ 49.464908][ T7679] WARNING: CPU: 1 PID: 7679 at fs/attr.c:234 notify_change+0xca2/0xfb0 [ 49.473278][ T7679] Kernel panic - not syncing: panic_on_warn set ... [ 49.480129][ T7679] CPU: 1 PID: 7679 Comm: syz-executor375 Not tainted 5.1.0-rc6+ #84 [ 49.488784][ T7679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.499270][ T7679] Call Trace: [ 49.502799][ T7679] dump_stack+0x172/0x1f0 [ 49.507310][ T7679] ? notify_change+0xbc0/0xfb0 [ 49.512117][ T7679] panic+0x2cb/0x65c [ 49.516010][ T7679] ? __warn_printk+0xf3/0xf3 [ 49.520608][ T7679] ? notify_change+0xca2/0xfb0 [ 49.525429][ T7679] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.531772][ T7679] ? __warn.cold+0x5/0x45 [ 49.536462][ T7679] ? __warn+0xe8/0x1d0 [ 49.540657][ T7679] ? notify_change+0xca2/0xfb0 [ 49.545437][ T7679] __warn.cold+0x20/0x45 [ 49.550059][ T7679] ? notify_change+0xca2/0xfb0 [ 49.554920][ T7679] report_bug+0x263/0x2b0 [ 49.559344][ T7679] do_error_trap+0x11b/0x200 [ 49.564050][ T7679] do_invalid_op+0x37/0x50 [ 49.568454][ T7679] ? notify_change+0xca2/0xfb0 [ 49.573315][ T7679] invalid_op+0x14/0x20 [ 49.577661][ T7679] RIP: 0010:notify_change+0xca2/0xfb0 [ 49.583219][ T7679] Code: a4 53 0a 00 e8 2f 94 b7 ff 4c 8b 7c 24 20 4c 89 ff e8 22 5c 4a 01 89 de 4c 89 ff e8 08 78 4a 01 e9 33 fa ff ff e8 0e 94 b7 ff <0f> 0b e9 42 f4 ff ff e8 02 94 b7 ff 44 89 f3 4c 89 ea 48 b8 00 00 [ 49.603367][ T7679] RSP: 0018:ffff8880947974c0 EFLAGS: 00010293 [ 49.609647][ T7679] RAX: ffff8880a4580640 RBX: 0000000000004200 RCX: ffffffff81b8ed22 [ 49.617805][ T7679] RDX: 0000000000000000 RSI: ffffffff81b8f8e2 RDI: 0000000000000007 [ 49.626480][ T7679] RBP: ffff888094797510 R08: ffff8880a4580640 R09: ffffed101471bc45 [ 49.634919][ T7679] R10: ffffed101471bc44 R11: ffff8880a38de227 R12: ffff888094797560 [ 49.643173][ T7679] R13: ffff8880a38de148 R14: 0000000000000000 R15: ffff8880947975f0 [ 49.651773][ T7679] ? notify_change+0xe2/0xfb0 [ 49.656547][ T7679] ? notify_change+0xca2/0xfb0 [ 49.661553][ T7679] file_remove_privs+0x2a9/0x480 [ 49.666593][ T7679] ? dentry_needs_remove_privs.part.0+0x80/0x80 [ 49.673469][ T7679] ? __kernel_text_address+0xd/0x40 [ 49.678681][ T7679] ? unwind_get_return_address+0x61/0xa0 [ 49.684318][ T7679] ? __save_stack_trace+0x99/0x100 [ 49.689443][ T7679] __generic_file_write_iter+0x15e/0x630 [ 49.695407][ T7679] blkdev_write_iter+0x23a/0x440 [ 49.700355][ T7679] ? __blkdev_get+0x1660/0x1660 [ 49.705436][ T7679] ? current_time+0x6b/0x140 [ 49.710049][ T7679] ? find_held_lock+0x35/0x130 [ 49.714915][ T7679] do_iter_readv_writev+0x5e1/0x8e0 [ 49.720662][ T7679] ? vfs_dedupe_file_range+0x780/0x780 [ 49.726130][ T7679] ? rw_verify_area+0x118/0x360 [ 49.731224][ T7679] do_iter_write+0x184/0x610 [ 49.736304][ T7679] ? rcu_read_lock_sched_held+0x110/0x130 [ 49.742206][ T7679] ? __kmalloc+0x5d5/0x740 [ 49.746664][ T7679] vfs_iter_write+0x77/0xb0 [ 49.751171][ T7679] iter_file_splice_write+0x662/0xbe0 [ 49.756899][ T7679] ? atime_needs_update+0x5f0/0x5f0 [ 49.762411][ T7679] ? page_cache_pipe_buf_confirm+0x2b0/0x2b0 [ 49.768457][ T7679] ? rw_verify_area+0x118/0x360 [ 49.773457][ T7679] ? page_cache_pipe_buf_confirm+0x2b0/0x2b0 [ 49.779505][ T7679] direct_splice_actor+0x126/0x1a0 [ 49.785544][ T7679] splice_direct_to_actor+0x369/0x970 [ 49.791108][ T7679] ? generic_pipe_buf_nosteal+0x10/0x10 [ 49.796751][ T7679] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.803004][ T7679] ? do_splice_to+0x190/0x190 [ 49.808475][ T7679] ? rw_verify_area+0x118/0x360 [ 49.813424][ T7679] do_splice_direct+0x1da/0x2a0 [ 49.818367][ T7679] ? splice_direct_to_actor+0x970/0x970 [ 49.823988][ T7679] ? rw_verify_area+0x118/0x360 [ 49.828929][ T7679] do_sendfile+0x597/0xd00 [ 49.833703][ T7679] ? do_compat_pwritev64+0x1c0/0x1c0 [ 49.839113][ T7679] ? __x64_sys_futex+0x404/0x590 [ 49.844288][ T7679] __x64_sys_sendfile64+0x1dd/0x220 [ 49.849611][ T7679] ? __ia32_sys_sendfile+0x230/0x230 [ 49.854986][ T7679] ? do_syscall_64+0x26/0x610 [ 49.859780][ T7679] ? lockdep_hardirqs_on+0x418/0x5d0 [ 49.865067][ T7679] ? trace_hardirqs_on+0x67/0x230 [ 49.870199][ T7679] do_syscall_64+0x103/0x610 [ 49.874779][ T7679] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.880735][ T7679] RIP: 0033:0x44a1c9 [ 49.884769][ T7679] Code: e8 4c bc 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 0b d3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.905127][ T7679] RSP: 002b:00007fc7a66e4ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 49.913741][ T7679] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 000000000044a1c9 [ 49.921929][ T7679] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005 [ 49.930049][ T7679] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 49.938244][ T7679] R10: 0020000102000007 R11: 0000000000000246 R12: 00000000006dbc5c [ 49.946320][ T7679] R13: 00007ffc1871f14f R14: 00007fc7a66e59c0 R15: 000000000000002d [ 49.956342][ T7679] Kernel Offset: disabled [ 49.960980][ T7679] Rebooting in 86400 seconds..