[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[[[ 31.318320] kauditd_printk_skb: 9 callbacks suppressed 32m ok [ 31.324650] audit: type=1800 audit(1537928639.411:33): pid=5361 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 8[?25h[?0c. [[ 31.346439] audit: type=1800 audit(1537928639.421:34): pid=5361 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 ....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.616192] audit: type=1400 audit(1537928643.711:35): avc: denied { map } for pid=5536 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts. 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 [ 42.279926] audit: type=1400 audit(1537928650.381:36): avc: denied { map } for pid=5550 comm="syz-executor362" path="/root/syz-executor362288344" dev="sda1" ino=16481 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 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 executing program [ 42.546225] syz-executor362 (5576) used greatest stack depth: 15480 bytes left 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 executing program [ 42.708656] WARNING: CPU: 0 PID: 5615 at fs/attr.c:234 notify_change+0xda8/0x1110 [ 42.716344] Kernel panic - not syncing: panic_on_warn set ... [ 42.716344] [ 42.723713] CPU: 0 PID: 5615 Comm: syz-executor362 Not tainted 4.19.0-rc5+ #33 [ 42.731067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.740422] Call Trace: [ 42.743022] dump_stack+0x1c4/0x2b4 [ 42.746677] ? dump_stack_print_info.cold.2+0x52/0x52 [ 42.751888] panic+0x238/0x4e7 [ 42.755117] ? add_taint.cold.5+0x16/0x16 [ 42.759294] ? __warn.cold.8+0x148/0x1ba [ 42.763375] ? __warn.cold.8+0x117/0x1ba [ 42.767456] ? notify_change+0xda8/0x1110 [ 42.771629] __warn.cold.8+0x163/0x1ba [ 42.775526] ? rcu_bh_qs+0xc0/0xc0 [ 42.779087] ? notify_change+0xda8/0x1110 [ 42.783266] report_bug+0x254/0x2d0 [ 42.786931] do_error_trap+0x1fc/0x4d0 [ 42.790838] ? simple_xattr_get+0x106/0x180 [ 42.795170] ? math_error+0x3f0/0x3f0 [ 42.799009] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.803886] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.808926] ? kasan_check_read+0x11/0x20 [ 42.813107] ? do_raw_spin_unlock+0xa7/0x2f0 [ 42.817531] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 42.822134] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.826992] do_invalid_op+0x1b/0x20 [ 42.830722] invalid_op+0x14/0x20 [ 42.834186] RIP: 0010:notify_change+0xda8/0x1110 [ 42.838988] Code: 4c 89 ef e8 fa 39 0c 00 e8 f5 01 a8 ff 4c 89 f7 e8 ad fa 81 01 44 89 e6 4c 89 f7 e8 e2 19 82 01 e9 ea f9 ff ff e8 d8 01 a8 ff <0f> 0b e9 c3 f3 ff ff e8 cc 01 a8 ff 48 89 da 41 83 cf 01 48 b8 00 [ 42.857890] RSP: 0018:ffff8801d92573e0 EFLAGS: 00010293 [ 42.863281] RAX: ffff8801c38a0580 RBX: ffff8801d22b4b90 RCX: ffffffff81d6d604 [ 42.870562] RDX: 0000000000000000 RSI: ffffffff81d6e248 RDI: 0000000000000007 [ 42.877838] RBP: ffff8801d92574b0 R08: ffff8801c38a0580 R09: ffffed003a45698d [ 42.885125] R10: ffffed003a45698d R11: ffff8801d22b4c6f R12: 0000000000004200 [ 42.892403] R13: ffff8801d92574f0 R14: ffff8801d38aa600 R15: 1ffff1003b24ae88 [ 42.899704] ? notify_change+0x164/0x1110 [ 42.903966] ? notify_change+0xda8/0x1110 [ 42.908136] ? rcu_process_callbacks+0x1d10/0x2670 [ 42.913083] ? setattr_prepare+0x830/0x830 [ 42.917337] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.922887] ? security_inode_need_killpriv+0x80/0xa0 [ 42.928094] file_remove_privs+0x2d5/0x540 [ 42.932318] ? unwind_get_return_address+0x61/0xa0 [ 42.937257] ? dentry_needs_remove_privs.part.25+0x70/0x70 [ 42.942902] ? blk_lld_busy+0x70/0x70 [ 42.946739] __generic_file_write_iter+0x169/0x630 [ 42.951693] blkdev_write_iter+0x23d/0x450 [ 42.955965] ? blkdev_close+0xb0/0xb0 [ 42.959786] ? __might_sleep+0x95/0x190 [ 42.963784] do_iter_readv_writev+0x8b0/0xa80 [ 42.968306] ? vfs_dedupe_file_range+0x670/0x670 [ 42.973087] ? rw_verify_area+0x118/0x360 [ 42.977271] do_iter_write+0x185/0x5f0 [ 42.981195] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.986750] vfs_iter_write+0x77/0xb0 [ 42.990574] iter_file_splice_write+0x90d/0x1050 [ 42.995361] ? page_cache_pipe_buf_steal+0x860/0x860 [ 43.000499] ? rw_verify_area+0x118/0x360 [ 43.004670] ? page_cache_pipe_buf_steal+0x860/0x860 [ 43.009791] direct_splice_actor+0x128/0x190 [ 43.014218] splice_direct_to_actor+0x318/0x8f0 [ 43.018920] ? __inode_security_revalidate+0xd9/0x120 [ 43.024166] ? pipe_to_sendpage+0x400/0x400 [ 43.028511] ? do_splice_to+0x190/0x190 [ 43.032512] ? security_file_permission+0x1c2/0x230 [ 43.037551] ? rw_verify_area+0x118/0x360 [ 43.041719] do_splice_direct+0x2d4/0x420 [ 43.045883] ? splice_direct_to_actor+0x8f0/0x8f0 [ 43.050748] ? rw_verify_area+0x118/0x360 [ 43.054913] do_sendfile+0x62a/0xe20 [ 43.058634] ? do_compat_pwritev64+0x1c0/0x1c0 [ 43.063233] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 43.068799] ? _copy_from_user+0xdf/0x150 [ 43.072970] __x64_sys_sendfile64+0x15d/0x250 [ 43.077483] ? __ia32_sys_sendfile+0x2a0/0x2a0 [ 43.082080] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.087622] ? ksys_ioctl+0x81/0xd0 [ 43.091274] do_syscall_64+0x1b9/0x820 [ 43.095192] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 43.100577] ? syscall_return_slowpath+0x5e0/0x5e0 [ 43.105520] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.110389] ? trace_hardirqs_on_caller+0x310/0x310 [ 43.115435] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 43.120468] ? prepare_exit_to_usermode+0x291/0x3b0 [ 43.125519] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.130385] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.135596] RIP: 0033:0x444ca9 [ 43.138801] Code: e8 ac 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 2b ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 43.157713] RSP: 002b:00007ffed6cb98d8 EFLAGS: 00000286 ORIG_RAX: 0000000000000028 [ 43.165446] RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 0000000000444ca9 [ 43.172738] RDX: 0000000020000000 RSI: 0000000000000003 RDI: 0000000000000003 [ 43.180043] RBP: 0000000000000000 R08: 00000000004002e0 R09: 00000000004002e0 [ 43.187325] R10: 0000000002000005 R11: 0000000000000286 R12: 000000000000a664 [ 43.194609] R13: 0000000000401ff0 R14: 0000000000000000 R15: 0000000000000000 [ 43.203010] Kernel Offset: disabled [ 43.206684] Rebooting in 86400 seconds..