[....] Starting enhanced syslogd: rsyslogd[ 11.212309] audit: type=1400 audit(1514063584.742:5): avc: denied { syslog } for pid=2995 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 16.829708] audit: type=1400 audit(1514063590.359:6): avc: denied { map } for pid=3134 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-386-4,10.128.0.34' (ECDSA) to the list of known hosts. [ 23.008622] audit: type=1400 audit(1514063596.538:7): avc: denied { map } for pid=3148 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 2017/12/23 21:13:16 parsed 1 programs 2017/12/23 21:13:16 executed programs: 0 [ 23.121382] audit: type=1400 audit(1514063596.651:8): avc: denied { map } for pid=3148 comm="syz-execprog" path="/root/syzkaller-shm339484017" 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 [ 23.146996] audit: type=1400 audit(1514063596.651:9): avc: denied { sys_admin } for pid=3153 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 [ 23.229424] audit: type=1400 audit(1514063596.759:10): avc: denied { sys_chroot } for pid=3156 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 [ 23.284239] FAULT_INJECTION: forcing a failure. [ 23.284239] name failslab, interval 1, probability 0, space 0, times 1 [ 23.295523] CPU: 1 PID: 3160 Comm: syz-executor0 Not tainted 4.15.0-rc4+ #146 [ 23.302769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.312092] Call Trace: [ 23.314660] dump_stack+0x194/0x257 [ 23.318271] ? arch_local_irq_restore+0x53/0x53 [ 23.322912] ? is_bpf_text_address+0xa4/0x120 [ 23.327396] should_fail+0x8c0/0xa40 [ 23.331086] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 23.336165] ? tty_ldisc_put+0x4c/0x70 [ 23.340027] ? save_stack+0xa3/0xd0 [ 23.343630] ? find_held_lock+0x35/0x1d0 [ 23.347678] ? __lock_is_held+0xb6/0x140 [ 23.351726] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 23.357579] ? lock_downgrade+0x980/0x980 [ 23.361701] ? rcu_note_context_switch+0x710/0x710 [ 23.366598] ? lock_release+0xa40/0xa40 [ 23.370539] ? lock_release+0xa40/0xa40 [ 23.374489] should_failslab+0xec/0x120 [ 23.378433] kmem_cache_alloc_trace+0x4b/0x750 [ 23.382984] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.387969] ? trace_hardirqs_on+0xd/0x10 [ 23.392093] tty_ldisc_get.part.3+0x66/0x140 [ 23.396471] tty_set_ldisc+0x64d/0x7a0 [ 23.400335] tty_ioctl+0x492/0x1610 [ 23.403934] ? tty_vhangup+0x30/0x30 [ 23.407618] ? ldsem_down_read+0x37/0x40 [ 23.411652] ? check_noncircular+0x20/0x20 [ 23.416467] ? lock_release+0xa40/0xa40 [ 23.420429] ? find_held_lock+0x35/0x1d0 [ 23.424466] ? tty_vhangup+0x30/0x30 [ 23.428179] do_vfs_ioctl+0x1b1/0x1520 [ 23.432039] ? lock_downgrade+0x980/0x980 [ 23.436158] ? ioctl_preallocate+0x2b0/0x2b0 [ 23.440559] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 23.446416] ? rcu_note_context_switch+0x710/0x710 [ 23.451324] ? ldsem_up_read+0x3a/0x70 [ 23.455180] ? tty_ldisc_deref+0x35/0x40 [ 23.459210] ? tty_compat_ioctl+0x119/0x260 [ 23.463503] compat_SyS_ioctl+0x4ef/0x2a30 [ 23.467714] ? do_ioctl+0x60/0x60 [ 23.471137] do_fast_syscall_32+0x3ee/0xf9d [ 23.475433] ? do_int80_syscall_32+0x9d0/0x9d0 [ 23.479990] ? syscall_return_slowpath+0x2ad/0x550 [ 23.484893] ? prepare_exit_to_usermode+0x340/0x340 [ 23.489896] ? sysret32_from_system_call+0x5/0x3b [ 23.494714] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.499530] entry_SYSENTER_compat+0x54/0x63 [ 23.503906] RIP: 0023:0xf7f5cc79 [ 23.507237] RSP: 002b:00000000f7f1608c EFLAGS: 00000296 ORIG_RAX: 0000000000000036 [ 23.514914] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 23.522151] RDX: 0000000020fe0000 RSI: 0000000000000000 RDI: 0000000000000000 [ 23.529387] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 23.536625] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 23.543861] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 23.551518] WARNING: CPU: 1 PID: 3160 at drivers/tty/tty_ldisc.c:531 tty_set_ldisc+0x4c6/0x7a0 [ 23.560249] Kernel panic - not syncing: panic_on_warn set ... [ 23.560249] [ 23.567588] CPU: 1 PID: 3160 Comm: syz-executor0 Not tainted 4.15.0-rc4+ #146 [ 23.574833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.584157] Call Trace: [ 23.586721] dump_stack+0x194/0x257 [ 23.590319] ? arch_local_irq_restore+0x53/0x53 [ 23.594960] ? vsnprintf+0x1ed/0x1900 [ 23.598733] panic+0x1e4/0x41c [ 23.601893] ? refcount_error_report+0x214/0x214 [ 23.606619] ? show_regs_print_info+0x18/0x18 [ 23.611095] ? __warn+0x1c1/0x200 [ 23.614520] ? tty_set_ldisc+0x4c6/0x7a0 [ 23.618549] __warn+0x1dc/0x200 [ 23.621799] ? tty_set_ldisc+0x4c6/0x7a0 [ 23.625833] report_bug+0x211/0x2d0 [ 23.629437] fixup_bug.part.11+0x37/0x80 [ 23.633474] do_error_trap+0x2d7/0x3e0 [ 23.637336] ? math_error+0x400/0x400 [ 23.641110] ? put_ldops.isra.2+0x7b/0xa0 [ 23.645230] ? lock_downgrade+0x980/0x980 [ 23.649349] ? free_modinfo_version+0x70/0x70 [ 23.653814] ? lock_release+0xa40/0xa40 [ 23.657758] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.662575] do_invalid_op+0x1b/0x20 [ 23.666257] invalid_op+0x22/0x40 [ 23.669680] RIP: 0010:tty_set_ldisc+0x4c6/0x7a0 [ 23.674324] RSP: 0018:ffff8801c930f970 EFLAGS: 00010293 [ 23.679656] RAX: ffff8801c9b7a140 RBX: ffff8801c9e9b280 RCX: ffffffff8287e7f6 [ 23.686895] RDX: 0000000000000000 RSI: 1ffff1003936f540 RDI: 0000000000000282 [ 23.694133] RBP: ffff8801c930f9c0 R08: 1ffff10039261eee R09: 0000000000000000 [ 23.701378] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff [ 23.708618] R13: ffff8801c9e9b7f0 R14: ffff8801db1e1440 R15: fffffffffffffff4 [ 23.715870] ? tty_set_ldisc+0x4c6/0x7a0 [ 23.719912] tty_ioctl+0x492/0x1610 [ 23.723509] ? tty_vhangup+0x30/0x30 [ 23.727191] ? ldsem_down_read+0x37/0x40 [ 23.731226] ? check_noncircular+0x20/0x20 [ 23.735428] ? lock_release+0xa40/0xa40 [ 23.739391] ? find_held_lock+0x35/0x1d0 [ 23.743427] ? tty_vhangup+0x30/0x30 [ 23.747110] do_vfs_ioctl+0x1b1/0x1520 [ 23.750967] ? lock_downgrade+0x980/0x980 [ 23.755086] ? ioctl_preallocate+0x2b0/0x2b0 [ 23.759464] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 23.765321] ? rcu_note_context_switch+0x710/0x710 [ 23.770235] ? ldsem_up_read+0x3a/0x70 [ 23.774094] ? tty_ldisc_deref+0x35/0x40 [ 23.778126] ? tty_compat_ioctl+0x119/0x260 [ 23.782420] compat_SyS_ioctl+0x4ef/0x2a30 [ 23.786627] ? do_ioctl+0x60/0x60 [ 23.790052] do_fast_syscall_32+0x3ee/0xf9d [ 23.794349] ? do_int80_syscall_32+0x9d0/0x9d0 [ 23.798908] ? syscall_return_slowpath+0x2ad/0x550 [ 23.803803] ? prepare_exit_to_usermode+0x340/0x340 [ 23.808794] ? sysret32_from_system_call+0x5/0x3b [ 23.813608] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.818426] entry_SYSENTER_compat+0x54/0x63 [ 23.822804] RIP: 0023:0xf7f5cc79 [ 23.826137] RSP: 002b:00000000f7f1608c EFLAGS: 00000296 ORIG_RAX: 0000000000000036 [ 23.833812] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 23.841056] RDX: 0000000020fe0000 RSI: 0000000000000000 RDI: 0000000000000000 [ 23.848301] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 23.855539] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 23.862774] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 23.870655] Dumping ftrace buffer: [ 23.874233] (ftrace buffer empty) [ 23.877909] Kernel Offset: disabled [ 23.881504] Rebooting in 86400 seconds..