[?25l[?1c7[ ok 8[?25h[?0c. [....] 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. [ 18.385194] audit: type=1400 audit(1520582619.234:6): avc: denied { map } for pid=4137 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.9' (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 syzkaller login: [ 24.727979] audit: type=1400 audit(1520582625.577:7): avc: denied { map } for pid=4151 comm="syzkaller521248" path="/root/syzkaller521248003" 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 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 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 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 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 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 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 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 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 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 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 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 [ 26.733183] kasan: CONFIG_KASAN_INLINE enabled [ 26.737798] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.745129] general protection fault: 0000 [#1] SMP KASAN [ 26.750633] Dumping ftrace buffer: [ 26.754140] (ftrace buffer empty) [ 26.757821] Modules linked in: [ 26.760983] CPU: 0 PID: 5781 Comm: syzkaller521248 Not tainted 4.16.0-rc4+ #346 [ 26.768396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.777729] RIP: 0010:__lock_acquire+0xa09/0x3e00 [ 26.782538] RSP: 0018:ffff8801c0337370 EFLAGS: 00010002 [ 26.787869] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 26.795111] RDX: 0000000000000046 RSI: 0000000000000000 RDI: ffffffff86ec9920 [ 26.802348] RBP: ffff8801c0337700 R08: ffffffff841cb7c9 R09: 0000000000000001 [ 26.809586] R10: 0000000000000000 R11: 0000000000000230 R12: 0000000000000000 [ 26.816823] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801c03885c0 [ 26.824062] FS: 00007f93d004c700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 26.832255] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.838112] CR2: 00000000006db0a0 CR3: 00000001bfa24003 CR4: 00000000001606f0 [ 26.845352] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.852590] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.859826] Call Trace: [ 26.862387] ? __lock_acquire+0x664/0x3e00 [ 26.866591] ? print_irqtrace_events+0x270/0x270 [ 26.871313] ? __lockdep_init_map+0xe4/0x650 [ 26.875689] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 26.880848] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 26.886011] ? __lock_acquire+0x664/0x3e00 [ 26.890237] ? ucma_destroy_id+0x269/0x4c0 [ 26.894444] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 26.899606] ? __might_sleep+0x95/0x190 [ 26.903548] ? ucma_destroy_id+0x269/0x4c0 [ 26.907752] ? __mutex_lock+0x16f/0x1a80 [ 26.911780] ? ucma_destroy_id+0x269/0x4c0 [ 26.915985] ? trace_hardirqs_off+0x10/0x10 [ 26.920273] ? trace_hardirqs_off+0x10/0x10 [ 26.924565] ? mutex_lock_io_nested+0x1900/0x1900 [ 26.929377] lock_acquire+0x1d5/0x580 [ 26.933146] ? lock_acquire+0x1d5/0x580 [ 26.937090] ? rdma_destroy_id+0xa9/0xda0 [ 26.941208] ? lock_release+0xa40/0xa40 [ 26.948329] ? lock_downgrade+0x980/0x980 [ 26.952447] ? lock_release+0xa40/0xa40 [ 26.956391] ? check_same_owner+0x320/0x320 [ 26.960679] ? do_raw_spin_trylock+0x190/0x190 [ 26.965234] _raw_spin_lock_irqsave+0x96/0xc0 [ 26.969940] ? rdma_destroy_id+0xa9/0xda0 [ 26.974056] rdma_destroy_id+0xa9/0xda0 [ 26.977996] ? trace_hardirqs_on+0xd/0x10 [ 26.982119] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.988422] ? wait_for_completion+0xe0/0x770 [ 26.992900] ? cma_release_dev+0x350/0x350 [ 26.997104] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 27.002873] ? do_wait_intr_irq+0x3e0/0x3e0 [ 27.008094] ? do_raw_spin_trylock+0x190/0x190 [ 27.012647] ? _raw_spin_unlock_irqrestore+0x31/0xc0 [ 27.017719] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 27.022708] ? trace_hardirqs_on+0xd/0x10 [ 27.027275] ? complete+0x62/0x80 [ 27.030699] ucma_destroy_id+0x2e9/0x4c0 [ 27.034729] ? ucma_close+0x2f0/0x2f0 [ 27.038499] ? __might_sleep+0x95/0x190 [ 27.042442] ? kasan_check_write+0x14/0x20 [ 27.046797] ? _copy_from_user+0x99/0x110 [ 27.050917] ucma_write+0x2d6/0x3d0 [ 27.054511] ? ucma_close+0x2f0/0x2f0 [ 27.058280] ? ucma_resolve_route+0x1a0/0x1a0 [ 27.062745] ? ucma_resolve_route+0x1a0/0x1a0 [ 27.067208] __vfs_write+0xef/0x970 [ 27.070804] ? rcu_note_context_switch+0x710/0x710 [ 27.075700] ? kernel_read+0x120/0x120 [ 27.079554] ? __might_sleep+0x95/0x190 [ 27.083498] ? _cond_resched+0x14/0x30 [ 27.087475] ? __inode_security_revalidate+0xd9/0x130 [ 27.092633] ? avc_policy_seqno+0x9/0x20 [ 27.096664] ? selinux_file_permission+0x82/0x460 [ 27.101479] ? security_file_permission+0x89/0x1e0 [ 27.106520] ? rw_verify_area+0xe5/0x2b0 [ 27.110549] ? __fdget_raw+0x20/0x20 [ 27.114233] vfs_write+0x189/0x510 [ 27.117741] SyS_write+0xef/0x220 [ 27.121164] ? SyS_read+0x220/0x220 [ 27.125031] ? do_syscall_64+0xb7/0x940 [ 27.128975] ? SyS_read+0x220/0x220 [ 27.132569] do_syscall_64+0x281/0x940 [ 27.136423] ? _raw_spin_unlock_irq+0x27/0x70 [ 27.141054] ? finish_task_switch+0x1c1/0x7e0 [ 27.145520] ? syscall_return_slowpath+0x550/0x550 [ 27.150415] ? syscall_return_slowpath+0x2ac/0x550 [ 27.155309] ? prepare_exit_to_usermode+0x350/0x350 [ 27.160441] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 27.165774] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.170583] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 27.175740] RIP: 0033:0x4468f9 [ 27.178930] RSP: 002b:00007f93d004bda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 27.186611] RAX: ffffffffffffffda RBX: 00000000006e29fc RCX: 00000000004468f9 [ 27.193855] RDX: 0000000000000018 RSI: 0000000020000140 RDI: 0000000000000004 [ 27.201895] RBP: 00000000006e29f8 R08: 00007f93d004c700 R09: 0000000000000000 [ 27.209134] R10: 00007f93d004c700 R11: 0000000000000246 R12: 006d635f616d6472 [ 27.216372] R13: 2f646e6162696e69 R14: 666e692f7665642f R15: 0000000000000003 [ 27.223861] Code: 81 c4 60 03 00 00 44 89 d0 5b 41 5a 41 5c 41 5d 41 5e 41 5f 5d 49 8d 62 f8 c3 4c 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 0a 33 00 00 49 81 3b 60 ed 9f 87 41 bd 00 00 [ 27.243058] RIP: __lock_acquire+0xa09/0x3e00 RSP: ffff8801c0337370 [ 27.249348] ---[ end trace 7f73847905073e05 ]--- [ 27.254069] Kernel panic - not syncing: Fatal exception [ 27.259810] Dumping ftrace buffer: [ 27.263324] (ftrace buffer empty) [ 27.267008] Kernel Offset: disabled [ 27.270600] Rebooting in 86400 seconds..