[?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. [ 18.902960] audit: type=1400 audit(1521155875.805:6): avc: denied { map } for pid=4221 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 '10.128.0.43' (ECDSA) to the list of known hosts. syzkaller login: [ 25.272405] audit: type=1400 audit(1521155882.175:7): avc: denied { map } for pid=4235 comm="syzkaller213174" path="/root/syzkaller213174773" 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 [ 25.288813] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 25.328086] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 25.363532] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 25.402598] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program [ 25.463109] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 25.555632] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 25.627122] WARNING: CPU: 1 PID: 4335 at ./include/net/sock.h:638 smc_unhash_sk+0x335/0x450 [ 25.635739] Kernel panic - not syncing: panic_on_warn set ... [ 25.635739] [ 25.643080] CPU: 1 PID: 4335 Comm: syzkaller213174 Not tainted 4.16.0-rc5+ #355 [ 25.650500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.659831] Call Trace: [ 25.662409] dump_stack+0x194/0x24d [ 25.666020] ? arch_local_irq_restore+0x53/0x53 [ 25.670671] ? vsnprintf+0x1ed/0x1900 [ 25.674455] panic+0x1e4/0x41c [ 25.677622] ? refcount_error_report+0x214/0x214 [ 25.682351] ? show_regs_print_info+0x18/0x18 [ 25.686823] ? __destroy_inode+0x660/0x660 [ 25.691035] ? __warn+0x1c1/0x200 [ 25.694465] ? smc_unhash_sk+0x335/0x450 [ 25.698498] __warn+0x1dc/0x200 [ 25.701753] ? smc_unhash_sk+0x335/0x450 [ 25.705788] report_bug+0x1f4/0x2b0 [ 25.709398] fixup_bug.part.11+0x37/0x80 [ 25.713433] do_error_trap+0x2d7/0x3e0 [ 25.717299] ? math_error+0x400/0x400 [ 25.721074] ? reacquire_held_locks+0x1f9/0x3e0 [ 25.725732] ? lock_acquire+0x1d5/0x580 [ 25.729684] ? lock_acquire+0x1d5/0x580 [ 25.733637] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.738462] do_invalid_op+0x1b/0x20 [ 25.742152] invalid_op+0x1b/0x40 [ 25.745578] RIP: 0010:smc_unhash_sk+0x335/0x450 [ 25.750220] RSP: 0018:ffff8801afac7198 EFLAGS: 00010293 [ 25.755559] RAX: ffff8801a9cf8700 RBX: 1ffff10035f58e37 RCX: ffffffff85a40075 [ 25.762802] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 1ffff10035f58e3b [ 25.770047] RBP: ffff8801afac7280 R08: dffffc0000000000 R09: 0000000000000004 [ 25.777290] R10: ffff8801afac7050 R11: 0000000000000004 R12: ffff8801afac7258 [ 25.784546] R13: ffffffff87672280 R14: ffff8801cd21f7c0 R15: 1ffff10035f58e3b [ 25.791813] ? smc_unhash_sk+0x335/0x450 [ 25.795865] ? smc_unhash_sk+0x335/0x450 [ 25.799905] ? smc_hash_sk+0x2f0/0x2f0 [ 25.803768] ? release_sock+0x1d4/0x2a0 [ 25.807717] ? __local_bh_enable_ip+0x121/0x230 [ 25.812364] ? __release_sock+0x360/0x360 [ 25.816488] ? smc_release+0x23d/0x580 [ 25.820349] ? trace_hardirqs_on+0xd/0x10 [ 25.824472] ? __local_bh_enable_ip+0x121/0x230 [ 25.829120] smc_release+0x322/0x580 [ 25.832816] sock_release+0x8d/0x1e0 [ 25.836507] ? sock_alloc_file+0x560/0x560 [ 25.840716] sock_close+0x16/0x20 [ 25.844156] __fput+0x327/0x7e0 [ 25.847421] ? fput+0x140/0x140 [ 25.850678] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.855158] ____fput+0x15/0x20 [ 25.858413] task_work_run+0x199/0x270 [ 25.862279] ? task_work_cancel+0x210/0x210 [ 25.866576] ? _raw_spin_unlock+0x22/0x30 [ 25.870699] ? switch_task_namespaces+0x87/0xc0 [ 25.875350] do_exit+0x9bb/0x1ad0 [ 25.878778] ? find_held_lock+0x35/0x1d0 [ 25.882817] ? mm_update_next_owner+0x930/0x930 [ 25.887466] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.892640] ? lock_downgrade+0x980/0x980 [ 25.896778] ? __unqueue_futex+0x1c0/0x290 [ 25.900985] ? lock_release+0xa40/0xa40 [ 25.904937] ? fault_in_user_writeable+0x90/0x90 [ 25.909674] ? do_raw_spin_trylock+0x190/0x190 [ 25.914229] ? futex_wake+0x680/0x680 [ 25.918018] ? drop_futex_key_refs.isra.13+0x63/0xb0 [ 25.923097] ? futex_wait+0x6a9/0x9a0 [ 25.926888] ? switched_to_fair+0xa0/0xa0 [ 25.931017] ? trace_hardirqs_off+0x10/0x10 [ 25.935313] ? __enqueue_entity+0x109/0x1e0 [ 25.939616] ? memset+0x31/0x40 [ 25.944029] ? find_held_lock+0x35/0x1d0 [ 25.948078] ? get_signal+0x7a9/0x16d0 [ 25.951942] ? lock_downgrade+0x980/0x980 [ 25.956089] do_group_exit+0x149/0x400 [ 25.959951] ? do_raw_spin_trylock+0x190/0x190 [ 25.964507] ? SyS_exit+0x30/0x30 [ 25.967935] ? _raw_spin_unlock_irq+0x27/0x70 [ 25.972406] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.977402] get_signal+0x73a/0x16d0 [ 25.981101] ? ptrace_notify+0x130/0x130 [ 25.985145] ? __schedule+0x903/0x1ec0 [ 25.989023] ? __sched_text_start+0x8/0x8 [ 25.993145] ? _raw_spin_unlock_irqrestore+0xa6/0xc0 [ 25.998231] ? _raw_spin_unlock+0x22/0x30 [ 26.002359] do_signal+0x90/0x1e90 [ 26.005890] ? free_obj_work+0x690/0x690 [ 26.009934] ? setup_sigcontext+0x7d0/0x7d0 [ 26.014230] ? lock_downgrade+0x980/0x980 [ 26.018362] ? schedule+0xf5/0x430 [ 26.021879] ? __schedule+0x1ec0/0x1ec0 [ 26.025846] ? exit_to_usermode_loop+0x8c/0x2f0 [ 26.030499] exit_to_usermode_loop+0x258/0x2f0 [ 26.035063] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 26.040577] ? do_syscall_64+0xb7/0x940 [ 26.044534] do_syscall_64+0x6ec/0x940 [ 26.048397] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.052868] ? finish_task_switch+0x1c1/0x7e0 [ 26.057339] ? syscall_return_slowpath+0x550/0x550 [ 26.062243] ? syscall_return_slowpath+0x2ac/0x550 [ 26.067150] ? prepare_exit_to_usermode+0x350/0x350 [ 26.072152] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 26.077505] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.082329] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 26.087494] RIP: 0033:0x446c79 [ 26.090658] RSP: 002b:00007f7031f47da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 26.098340] RAX: fffffffffffffe00 RBX: 00000000006e2a14 RCX: 0000000000446c79 [ 26.105586] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006e2a14 [ 26.112838] RBP: 00000000006e2a10 R08: 0000000000000000 R09: 0000000000000000 [ 26.120082] R10: 0000000000000000 R11: 0000000000000246 R12: 007963696c6f702f [ 26.127326] R13: 78756e696c65732f R14: 0030656c69662f2e R15: 000000000000000a [ 26.135199] Dumping ftrace buffer: [ 26.139262] (ftrace buffer empty) [ 26.142944] Kernel Offset: disabled [ 26.146547] Rebooting in 86400 seconds..