[ 59.883187][ T26] audit: type=1800 audit(1560756000.318:30): pid=8958 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 64.959934][ T26] kauditd_printk_skb: 4 callbacks suppressed [ 64.959949][ T26] audit: type=1400 audit(1560756005.428:35): avc: denied { map } for pid=9134 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 '10.128.1.13' (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 [ 71.304900][ T26] audit: type=1400 audit(1560756011.778:36): avc: denied { map } for pid=9146 comm="syz-executor422" path="/root/syz-executor422788278" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 71.353724][ T8994] WARNING: CPU: 0 PID: 8994 at fs/notify/fanotify/fanotify.c:359 fanotify_handle_event+0x5ff/0xc6d [ 71.364557][ T8994] Kernel panic - not syncing: panic_on_warn set ... [ 71.371247][ T8994] CPU: 0 PID: 8994 Comm: rs:main Q:Reg Not tainted 5.2.0-rc4+ #27 [ 71.379146][ T8994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.389318][ T8994] Call Trace: [ 71.392610][ T8994] dump_stack+0x172/0x1f0 [ 71.396937][ T8994] ? fanotify_handle_event+0x500/0xc6d [ 71.403440][ T8994] panic+0x2cb/0x744 [ 71.407332][ T8994] ? __warn_printk+0xf3/0xf3 [ 71.411923][ T8994] ? fanotify_handle_event+0x5ff/0xc6d [ 71.417381][ T8994] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 71.423615][ T8994] ? __warn.cold+0x5/0x4d [ 71.427931][ T8994] ? __warn+0xe8/0x1d0 [ 71.432016][ T8994] ? fanotify_handle_event+0x5ff/0xc6d [ 71.437474][ T8994] __warn.cold+0x20/0x4d [ 71.441716][ T8994] ? fanotify_handle_event+0x5ff/0xc6d [ 71.447169][ T8994] report_bug+0x263/0x2b0 [ 71.451525][ T8994] do_error_trap+0x11b/0x200 [ 71.456135][ T8994] do_invalid_op+0x37/0x50 [ 71.460540][ T8994] ? fanotify_handle_event+0x5ff/0xc6d [ 71.465988][ T8994] invalid_op+0x14/0x20 [ 71.470137][ T8994] RIP: 0010:fanotify_handle_event+0x5ff/0xc6d [ 71.476193][ T8994] Code: 06 00 00 8b 5b 40 31 ff 8b b5 fc fe ff ff 09 de 89 b5 f0 fe ff ff e8 f0 64 ab ff 8b b5 f0 fe ff ff 85 f6 75 55 e8 61 63 ab ff <0f> 0b e8 5a 63 ab ff 41 83 c6 01 bf 03 00 00 00 44 89 f6 e8 c9 64 [ 71.495887][ T8994] RSP: 0018:ffff8880a66dfb80 EFLAGS: 00010293 [ 71.501947][ T8994] RAX: ffff888087bf0640 RBX: 0000000000000000 RCX: ffffffff81c55df0 [ 71.509918][ T8994] RDX: 0000000000000000 RSI: ffffffff81c55dff RDI: 0000000000000005 [ 71.517975][ T8994] RBP: ffff8880a66dfcc8 R08: ffff888087bf0640 R09: 0000000000000000 [ 71.526028][ T8994] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002 [ 71.533995][ T8994] R13: 0000000000000000 R14: 0000000000000002 R15: dffffc0000000000 [ 71.541976][ T8994] ? fanotify_handle_event+0x5f0/0xc6d [ 71.547426][ T8994] ? fanotify_handle_event+0x5ff/0xc6d [ 71.553090][ T8994] ? fanotify_alloc_event+0xd10/0xd10 [ 71.558452][ T8994] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 71.564870][ T8994] ? iov_iter_init+0xee/0x220 [ 71.569556][ T8994] fsnotify+0x71f/0xbc0 [ 71.573722][ T8994] ? fsnotify_first_mark+0x210/0x210 [ 71.579004][ T8994] ? __vfs_write+0x92/0x110 [ 71.583503][ T8994] vfs_write+0x4dc/0x580 [ 71.587763][ T8994] ksys_write+0x14f/0x290 [ 71.592119][ T8994] ? __ia32_sys_read+0xb0/0xb0 [ 71.596880][ T8994] ? do_syscall_64+0x26/0x680 [ 71.601547][ T8994] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.607603][ T8994] ? do_syscall_64+0x26/0x680 [ 71.612279][ T8994] __x64_sys_write+0x73/0xb0 [ 71.616869][ T8994] do_syscall_64+0xfd/0x680 [ 71.621369][ T8994] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.627252][ T8994] RIP: 0033:0x7f4cdf18519d [ 71.631660][ T8994] Code: d1 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be fa ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 07 fb ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 71.651255][ T8994] RSP: 002b:00007f4cdd726000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 71.659666][ T8994] RAX: ffffffffffffffda RBX: 0000000000000155 RCX: 00007f4cdf18519d [ 71.667635][ T8994] RDX: 0000000000000155 RSI: 00000000008bda90 RDI: 0000000000000001 [ 71.675595][ T8994] RBP: 00000000008bda90 R08: 6573753a725f7463 R09: 745f656d6f685f72 [ 71.683559][ T8994] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 71.691531][ T8994] R13: 00007f4cdd726480 R14: 0000000000000001 R15: 00000000008bd890 [ 71.701401][ T8994] Kernel Offset: disabled [ 71.705785][ T8994] Rebooting in 86400 seconds..