[....] Starting enhanced syslogd: rsyslogd[ 11.742080] audit: type=1400 audit(1512719075.279:5): avc: denied { syslog } for pid=2990 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 37.190773] audit: type=1400 audit(1512719100.728:6): avc: denied { map } for pid=3137 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 'ci-upstream-mmots-kasan-gce-9,10.128.15.201' (ECDSA) to the list of known hosts. executing program [ 43.306737] audit: type=1400 audit(1512719106.844:7): avc: denied { map } for pid=3149 comm="syzkaller509751" path="/root/syzkaller509751917" 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 [ 43.308535] WARNING: CPU: 0 PID: 3149 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770 [ 43.308545] Kernel panic - not syncing: panic_on_warn set ... [ 43.308545] [ 43.308552] CPU: 0 PID: 3149 Comm: syzkaller509751 Not tainted 4.15.0-rc2-mm1+ #39 [ 43.308556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.308559] Call Trace: [ 43.308568] dump_stack+0x194/0x257 [ 43.308577] ? arch_local_irq_restore+0x53/0x53 [ 43.308589] ? vsnprintf+0x1ed/0x1900 [ 43.308600] panic+0x1e4/0x41c [ 43.308607] ? refcount_error_report+0x214/0x214 [ 43.308613] ? show_regs_print_info+0x18/0x18 [ 43.308626] ? __warn+0x1c1/0x200 [ 43.308636] ? __wake_up_common+0x433/0x770 [ 43.308641] __warn+0x1dc/0x200 [ 43.308648] ? __wake_up_common+0x433/0x770 [ 43.308657] report_bug+0x211/0x2d0 [ 43.308670] fixup_bug.part.11+0x37/0x80 [ 43.308677] do_error_trap+0x2d7/0x3e0 [ 43.308688] ? math_error+0x400/0x400 [ 43.308696] ? check_noncircular+0x20/0x20 [ 43.308702] ? save_stack_trace+0x1a/0x20 [ 43.308708] ? __lock_acquire+0x324e/0x47f0 [ 43.308719] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 43.308730] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.308742] do_invalid_op+0x1b/0x20 [ 43.308748] invalid_op+0x22/0x40 [ 43.308753] RIP: 0010:__wake_up_common+0x433/0x770 [ 43.308757] RSP: 0018:ffff8801c3cb7648 EFLAGS: 00010246 [ 43.308764] RAX: 0000000000000000 RBX: ffff8801c3f79e50 RCX: 0000000000000004 [ 43.308769] RDX: 1ffffffff0c59731 RSI: ffff8801c3f79e68 RDI: 0000000000000282 [ 43.308772] RBP: ffff8801c3cb7748 R08: ffff8801c3cb7858 R09: 0000000000000000 [ 43.308776] R10: 000000000000000b R11: ffffed0038796e48 R12: 0000000000000000 [ 43.308780] R13: ffff8801c3f79e00 R14: 0000000000000001 R15: ffff8801c3cb7858 [ 43.308801] ? __wake_up_common+0x42b/0x770 [ 43.308813] ? do_wait_intr_irq+0x3e0/0x3e0 [ 43.308825] ? __kernel_text_address+0xd/0x40 [ 43.308831] ? check_noncircular+0x20/0x20 [ 43.308846] __wake_up_locked_key+0x16/0x20 [ 43.308854] userfaultfd_release+0x4da/0x750 [ 43.308862] ? free_fs_struct+0x52/0x60 [ 43.308874] ? userfaultfd_event_wait_completion+0xae0/0xae0 [ 43.308880] ? fsnotify+0x7b3/0x1140 [ 43.308896] ? fsnotify_first_mark+0x2b0/0x2b0 [ 43.308906] ? __might_sleep+0x95/0x190 [ 43.308915] ? userfaultfd_event_wait_completion+0xae0/0xae0 [ 43.308921] __fput+0x333/0x7f0 [ 43.308934] ? fput+0x140/0x140 [ 43.308942] ? _raw_spin_unlock_irq+0x27/0x70 [ 43.308954] ____fput+0x15/0x20 [ 43.308961] task_work_run+0x199/0x270 [ 43.308971] ? task_work_cancel+0x210/0x210 [ 43.308978] ? _raw_spin_unlock+0x22/0x30 [ 43.308985] ? switch_task_namespaces+0x87/0xc0 [ 43.309004] do_exit+0x9bb/0x1ae0 [ 43.309011] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.309021] ? mm_update_next_owner+0x930/0x930 [ 43.309026] ? lockdep_init_map+0x3d/0x70 [ 43.309035] ? debug_mutex_init+0x2d/0x60 [ 43.309047] ? find_held_lock+0x39/0x1d0 [ 43.309064] ? lock_downgrade+0x980/0x980 [ 43.309073] ? get_unused_fd_flags+0x190/0x190 [ 43.309090] ? __lock_is_held+0xbc/0x140 [ 43.309109] ? __fd_install+0x288/0x740 [ 43.309114] ? __init_waitqueue_head+0x97/0x140 [ 43.309122] ? get_unused_fd_flags+0x190/0x190 [ 43.309131] ? alloc_file+0x284/0x3a0 [ 43.309136] ? _raw_spin_unlock+0x22/0x30 [ 43.309146] ? anon_inode_getfile+0x349/0x490 [ 43.309155] ? compat_SyS_epoll_pwait+0x4f0/0x4f0 [ 43.309167] ? kmem_cache_alloc+0x469/0x760 [ 43.309174] ? vfs_write+0x22a/0x510 [ 43.309184] do_group_exit+0x149/0x400 [ 43.309193] ? SyS_exit+0x30/0x30 [ 43.309200] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.309208] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 43.309218] SyS_exit_group+0x1d/0x20 [ 43.309225] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 43.309229] RIP: 0033:0x43e858 [ 43.309233] RSP: 002b:00007ffee1e99c48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.309240] RAX: ffffffffffffffda RBX: 00000000006ca800 RCX: 000000000043e858 [ 43.309243] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 43.309247] RBP: 00000000000014b1 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 43.309251] R10: 0000000000000006 R11: 0000000000000246 R12: 00000000006ca858 [ 43.309254] R13: 00000000006ca858 R14: 0000000000000000 R15: 0000000000002710 [ 43.332658] Dumping ftrace buffer: [ 43.332769] (ftrace buffer empty) [ 43.332775] Kernel Offset: disabled [ 43.742303] Rebooting in 86400 seconds..