[....] Starting enhanced syslogd: rsyslogd[ 13.108338] audit: type=1400 audit(1513477533.719:5): avc: denied { syslog } for pid=2991 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: [ 19.441884] audit: type=1400 audit(1513477540.052:6): avc: denied { map } for pid=3131 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-8,10.128.0.11' (ECDSA) to the list of known hosts. [ 25.742862] audit: type=1400 audit(1513477546.353:7): avc: denied { map } for pid=3145 comm="syzkaller309416" path="/root/syzkaller309416571" 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 [ 25.745146] WARNING: CPU: 1 PID: 3145 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770 [ 25.745160] Kernel panic - not syncing: panic_on_warn set ... [ 25.745160] [ 25.745169] CPU: 1 PID: 3145 Comm: syzkaller309416 Not tainted 4.15.0-rc2-mm1+ #39 [ 25.745175] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.745180] Call Trace: [ 25.745192] dump_stack+0x194/0x257 [ 25.745207] ? arch_local_irq_restore+0x53/0x53 [ 25.745226] ? vsnprintf+0x1ed/0x1900 [ 25.745243] panic+0x1e4/0x41c [ 25.745253] ? refcount_error_report+0x214/0x214 [ 25.745263] ? show_regs_print_info+0x18/0x18 [ 25.745283] ? __warn+0x1c1/0x200 [ 25.745299] ? __wake_up_common+0x433/0x770 [ 25.745307] __warn+0x1dc/0x200 [ 25.745318] ? __wake_up_common+0x433/0x770 [ 25.745332] report_bug+0x211/0x2d0 [ 25.745353] fixup_bug.part.11+0x37/0x80 [ 25.745365] do_error_trap+0x2d7/0x3e0 [ 25.745382] ? math_error+0x400/0x400 [ 25.745395] ? check_noncircular+0x20/0x20 [ 25.745404] ? mark_held_locks+0xb2/0x100 [ 25.745412] ? __lock_acquire+0x324e/0x47f0 [ 25.745423] ? retint_kernel+0x10/0x10 [ 25.745441] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.745460] do_invalid_op+0x1b/0x20 [ 25.745470] invalid_op+0x22/0x40 [ 25.745478] RIP: 0010:__wake_up_common+0x433/0x770 [ 25.745484] RSP: 0018:ffff8801c4a8f648 EFLAGS: 00010246 [ 25.745495] RAX: 0000000000000000 RBX: ffff8801c4df9e50 RCX: 0000000000000004 [ 25.745501] RDX: 1ffffffff0c59731 RSI: ffff8801c4df9e68 RDI: 0000000000000282 [ 25.745508] RBP: ffff8801c4a8f748 R08: ffff8801c4a8f858 R09: 0000000000000000 [ 25.745514] R10: 000000000000000b R11: ffffed0038951e48 R12: 0000000000000000 [ 25.745520] R13: ffff8801c4df9e00 R14: 0000000000000001 R15: ffff8801c4a8f858 [ 25.745557] ? __wake_up_common+0x42b/0x770 [ 25.745577] ? do_wait_intr_irq+0x3e0/0x3e0 [ 25.745594] ? __kernel_text_address+0xd/0x40 [ 25.745604] ? check_noncircular+0x20/0x20 [ 25.745629] __wake_up_locked_key+0x16/0x20 [ 25.745640] userfaultfd_release+0x4da/0x750 [ 25.745652] ? free_fs_struct+0x52/0x60 [ 25.745671] ? userfaultfd_event_wait_completion+0xae0/0xae0 [ 25.745680] ? fsnotify+0x7b3/0x1140 [ 25.745706] ? fsnotify_first_mark+0x2b0/0x2b0 [ 25.745723] ? __might_sleep+0x95/0x190 [ 25.745737] ? userfaultfd_event_wait_completion+0xae0/0xae0 [ 25.745748] __fput+0x333/0x7f0 [ 25.745768] ? fput+0x140/0x140 [ 25.745781] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.745801] ____fput+0x15/0x20 [ 25.745812] task_work_run+0x199/0x270 [ 25.745828] ? task_work_cancel+0x210/0x210 [ 25.745839] ? _raw_spin_unlock+0x22/0x30 [ 25.745850] ? switch_task_namespaces+0x87/0xc0 [ 25.745868] do_exit+0x9bb/0x1ae0 [ 25.745880] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.745896] ? mm_update_next_owner+0x930/0x930 [ 25.745903] ? lockdep_init_map+0x3d/0x70 [ 25.745917] ? debug_mutex_init+0x2d/0x60 [ 25.745937] ? find_held_lock+0x39/0x1d0 [ 25.745964] ? lock_downgrade+0x980/0x980 [ 25.745977] ? get_unused_fd_flags+0x190/0x190 [ 25.746008] ? __lock_is_held+0xbc/0x140 [ 25.746039] ? __fd_install+0x288/0x740 [ 25.746047] ? __init_waitqueue_head+0x97/0x140 [ 25.746060] ? get_unused_fd_flags+0x190/0x190 [ 25.746074] ? alloc_file+0x284/0x3a0 [ 25.746082] ? _raw_spin_unlock+0x22/0x30 [ 25.746099] ? anon_inode_getfile+0x349/0x490 [ 25.746113] ? compat_SyS_epoll_pwait+0x4f0/0x4f0 [ 25.746131] ? kmem_cache_alloc+0x469/0x760 [ 25.746143] ? vfs_write+0x22a/0x510 [ 25.746158] do_group_exit+0x149/0x400 [ 25.746172] ? SyS_exit+0x30/0x30 [ 25.746184] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.746196] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 25.746212] SyS_exit_group+0x1d/0x20 [ 25.746224] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 25.746231] RIP: 0033:0x43e858 [ 25.746237] RSP: 002b:00007fff877731d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.746248] RAX: ffffffffffffffda RBX: 00000000006ca800 RCX: 000000000043e858 [ 25.746254] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 25.746260] RBP: 00000000000014b1 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 25.746266] R10: 0000000000000006 R11: 0000000000000246 R12: 00000000006ca858 [ 25.746272] R13: 00000000006ca858 R14: 0000000000000000 R15: 0000000000002710 [ 25.769175] Dumping ftrace buffer: [ 25.769216] (ftrace buffer empty) [ 25.769219] Kernel Offset: disabled [ 26.177825] Rebooting in 86400 seconds..