[....] Starting enhanced syslogd: rsyslogd[ 10.804900] audit: type=1400 audit(1513977428.688:5): 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: [ 15.412495] audit: type=1400 audit(1513977433.296:6): avc: denied { map } for pid=3130 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-kasan-gce-386-3,10.128.0.20' (ECDSA) to the list of known hosts. [ 28.911966] audit: type=1400 audit(1513977446.795:7): avc: denied { map } for pid=3146 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2017/12/22 21:17:26 parsed 1 programs 2017/12/22 21:17:26 executed programs: 0 [ 29.011363] audit: type=1400 audit(1513977446.895:8): avc: denied { map } for pid=3146 comm="syz-execprog" path="/root/syzkaller-shm851427403" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 29.036958] audit: type=1400 audit(1513977446.901:9): avc: denied { sys_admin } for pid=3151 comm="syz-executor0" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 29.122353] audit: type=1400 audit(1513977447.006:10): avc: denied { sys_chroot } for pid=3153 comm="syz-executor0" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 29.125869] FAULT_INJECTION: forcing a failure. [ 29.125869] name failslab, interval 1, probability 0, space 0, times 1 [ 29.125878] CPU: 1 PID: 3154 Comm: syz-executor0 Not tainted 4.15.0-rc4+ #144 [ 29.125880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.125882] Call Trace: [ 29.125893] dump_stack+0x194/0x257 [ 29.125902] ? arch_local_irq_restore+0x53/0x53 [ 29.125909] ? is_bpf_text_address+0xa4/0x120 [ 29.125923] should_fail+0x8c0/0xa40 [ 29.125931] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 29.125945] ? tty_ldisc_put+0x4c/0x70 [ 29.125952] ? save_stack+0xa3/0xd0 [ 29.125964] ? find_held_lock+0x35/0x1d0 [ 29.125974] ? __lock_is_held+0xb6/0x140 [ 29.125997] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 29.126003] ? lock_downgrade+0x980/0x980 [ 29.126012] ? rcu_note_context_switch+0x710/0x710 [ 29.126016] ? lock_release+0xa40/0xa40 [ 29.126019] ? lock_release+0xa40/0xa40 [ 29.126031] should_failslab+0xec/0x120 [ 29.126039] kmem_cache_alloc_trace+0x4b/0x750 [ 29.126044] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.126050] ? trace_hardirqs_on+0xd/0x10 [ 29.126061] tty_ldisc_get.part.3+0x66/0x140 [ 29.126067] tty_set_ldisc+0x64d/0x7a0 [ 29.126079] tty_ioctl+0x492/0x1610 [ 29.126086] ? tty_vhangup+0x30/0x30 [ 29.126091] ? ldsem_down_read+0x37/0x40 [ 29.126101] ? check_noncircular+0x20/0x20 [ 29.126105] ? lock_release+0xa40/0xa40 [ 29.126112] ? map_files_get_link+0x3a0/0x3a0 [ 29.126134] ? find_held_lock+0x35/0x1d0 [ 29.126145] ? tty_vhangup+0x30/0x30 [ 29.126152] do_vfs_ioctl+0x1b1/0x1520 [ 29.126157] ? lock_downgrade+0x980/0x980 [ 29.126165] ? ioctl_preallocate+0x2b0/0x2b0 [ 29.126169] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 29.126176] ? rcu_note_context_switch+0x710/0x710 [ 29.126193] ? ldsem_up_read+0x3a/0x70 [ 29.126199] ? tty_ldisc_deref+0x35/0x40 [ 29.126204] ? tty_compat_ioctl+0x119/0x260 [ 29.126214] compat_SyS_ioctl+0x4ef/0x2a30 [ 29.126224] ? do_ioctl+0x60/0x60 [ 29.126231] do_fast_syscall_32+0x3ee/0xf9d [ 29.126242] ? do_int80_syscall_32+0x9d0/0x9d0 [ 29.126248] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.126258] ? syscall_return_slowpath+0x2ad/0x550 [ 29.126264] ? prepare_exit_to_usermode+0x340/0x340 [ 29.126270] ? sysret32_from_system_call+0x5/0x3b [ 29.126280] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.126291] entry_SYSENTER_compat+0x54/0x63 [ 29.126295] RIP: 0023:0xf7fa6c79 [ 29.126298] RSP: 002b:000000000844f86c EFLAGS: 00000216 ORIG_RAX: 0000000000000036 [ 29.126302] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000005423 [ 29.126305] RDX: 0000000020fdd000 RSI: 0000000000000000 RDI: 0000000000000000 [ 29.126307] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.126309] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.126311] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.126418] WARNING: CPU: 1 PID: 3154 at drivers/tty/tty_ldisc.c:531 tty_set_ldisc+0x4c6/0x7a0 [ 29.126421] Kernel panic - not syncing: panic_on_warn set ... [ 29.126421] [ 29.126425] CPU: 1 PID: 3154 Comm: syz-executor0 Not tainted 4.15.0-rc4+ #144 [ 29.126427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.126428] Call Trace: [ 29.126433] dump_stack+0x194/0x257 [ 29.126440] ? arch_local_irq_restore+0x53/0x53 [ 29.126449] ? vsnprintf+0x1ed/0x1900 [ 29.126459] panic+0x1e4/0x41c [ 29.126466] ? refcount_error_report+0x214/0x214 [ 29.126471] ? show_regs_print_info+0x18/0x18 [ 29.126482] ? __warn+0x1c1/0x200 [ 29.126490] ? tty_set_ldisc+0x4c6/0x7a0 [ 29.126493] __warn+0x1dc/0x200 [ 29.126498] ? tty_set_ldisc+0x4c6/0x7a0 [ 29.126505] report_bug+0x211/0x2d0 [ 29.126516] fixup_bug.part.11+0x37/0x80 [ 29.126522] do_error_trap+0x2d7/0x3e0 [ 29.126531] ? math_error+0x400/0x400 [ 29.126534] ? put_ldops.isra.2+0x7b/0xa0 [ 29.126540] ? lock_downgrade+0x980/0x980 [ 29.126548] ? free_modinfo_version+0x70/0x70 [ 29.126553] ? lock_release+0xa40/0xa40 [ 29.126560] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.126571] do_invalid_op+0x1b/0x20 [ 29.126575] invalid_op+0x22/0x40 [ 29.126579] RIP: 0010:tty_set_ldisc+0x4c6/0x7a0 [ 29.126581] RSP: 0018:ffff8801c85af970 EFLAGS: 00010293 [ 29.126585] RAX: ffff8801c849a4c0 RBX: ffff8801c851d480 RCX: ffffffff8287e3d6 [ 29.126587] RDX: 0000000000000000 RSI: 1ffff100390935b0 RDI: 0000000000000282 [ 29.126590] RBP: ffff8801c85af9c0 R08: 1ffff100390b5eee R09: 0000000000000000 [ 29.126592] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff [ 29.126594] R13: ffff8801c851d9f0 R14: ffff8801ca162780 R15: fffffffffffffff4 [ 29.126606] ? tty_set_ldisc+0x4c6/0x7a0 [ 29.126623] tty_ioctl+0x492/0x1610 [ 29.126630] ? tty_vhangup+0x30/0x30 [ 29.126634] ? ldsem_down_read+0x37/0x40 [ 29.126643] ? check_noncircular+0x20/0x20 [ 29.126647] ? lock_release+0xa40/0xa40 [ 29.126652] ? map_files_get_link+0x3a0/0x3a0 [ 29.126675] ? find_held_lock+0x35/0x1d0 [ 29.126685] ? tty_vhangup+0x30/0x30 [ 29.126690] do_vfs_ioctl+0x1b1/0x1520 [ 29.126695] ? lock_downgrade+0x980/0x980 [ 29.126703] ? ioctl_preallocate+0x2b0/0x2b0 [ 29.126706] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 29.126714] ? rcu_note_context_switch+0x710/0x710 [ 29.126730] ? ldsem_up_read+0x3a/0x70 [ 29.126736] ? tty_ldisc_deref+0x35/0x40 [ 29.126741] ? tty_compat_ioctl+0x119/0x260 [ 29.126749] compat_SyS_ioctl+0x4ef/0x2a30 [ 29.126759] ? do_ioctl+0x60/0x60 [ 29.126765] do_fast_syscall_32+0x3ee/0xf9d [ 29.126776] ? do_int80_syscall_32+0x9d0/0x9d0 [ 29.126781] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.126791] ? syscall_return_slowpath+0x2ad/0x550 [ 29.126796] ? prepare_exit_to_usermode+0x340/0x340 [ 29.126802] ? sysret32_from_system_call+0x5/0x3b [ 29.126812] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.126823] entry_SYSENTER_compat+0x54/0x63 [ 29.126826] RIP: 0023:0xf7fa6c79 [ 29.126828] RSP: 002b:000000000844f86c EFLAGS: 00000216 ORIG_RAX: 0000000000000036 [ 29.126832] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000005423 [ 29.126834] RDX: 0000000020fdd000 RSI: 0000000000000000 RDI: 0000000000000000 [ 29.126836] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.126838] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 29.126840] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 29.147080] Dumping ftrace buffer: [ 29.147126] (ftrace buffer empty) [ 29.147128] Kernel Offset: disabled [ 29.759148] Rebooting in 86400 seconds..