[ 17.427808] audit: type=1400 audit(1519335109.619:5): avc: denied { syslog } for pid=4096 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [....] Starting enhanced syslogd: rsyslogd[?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: [ 23.081456] audit: type=1400 audit(1519335115.273:6): avc: denied { map } for pid=4239 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 '10.128.0.5' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 29.839970] audit: type=1400 audit(1519335122.031:7): avc: denied { map } for pid=4253 comm="syzkaller268506" path="/root/syzkaller268506246" 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 [ 29.865350] WARNING: CPU: 1 PID: 4266 at ./include/net/sock.h:638 smc_unhash_sk+0x335/0x450 [ 29.874370] Kernel panic - not syncing: panic_on_warn set ... [ 29.874370] [ 29.881708] CPU: 1 PID: 4266 Comm: syzkaller268506 Not tainted 4.16.0-rc2+ #234 [ 29.889129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.898456] Call Trace: [ 29.901023] dump_stack+0x194/0x24d [ 29.904631] ? arch_local_irq_restore+0x53/0x53 [ 29.909280] ? vsnprintf+0x1ed/0x1900 [ 29.913061] panic+0x1e4/0x41c [ 29.916232] ? refcount_error_report+0x214/0x214 [ 29.920960] ? show_regs_print_info+0x18/0x18 [ 29.925429] ? __destroy_inode+0x660/0x660 [ 29.929644] ? __warn+0x1c1/0x200 [ 29.933079] ? smc_unhash_sk+0x335/0x450 [ 29.937115] __warn+0x1dc/0x200 [ 29.940370] ? smc_unhash_sk+0x335/0x450 [ 29.944416] report_bug+0x211/0x2d0 [ 29.948029] fixup_bug.part.11+0x37/0x80 [ 29.952064] do_error_trap+0x2d7/0x3e0 [ 29.955928] ? math_error+0x400/0x400 [ 29.959701] ? reacquire_held_locks+0x1f9/0x3e0 [ 29.964349] ? lock_acquire+0x1d5/0x580 [ 29.968296] ? lock_acquire+0x1d5/0x580 [ 29.972248] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.977071] do_invalid_op+0x1b/0x20 [ 29.980759] invalid_op+0x58/0x80 [ 29.984188] RIP: 0010:smc_unhash_sk+0x335/0x450 [ 29.988825] RSP: 0018:ffff8801b1987148 EFLAGS: 00010293 [ 29.994161] RAX: ffff8801b0ca25c0 RBX: 1ffff10036330e2d RCX: ffffffff85a3f1f5 [ 30.001403] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 1ffff10036330e31 [ 30.008648] RBP: ffff8801b1987230 R08: dffffc0000000000 R09: 0000000000000004 [ 30.015890] R10: ffff8801b1987000 R11: 0000000000000004 R12: ffff8801b1987208 [ 30.023132] R13: ffffffff87669b40 R14: ffff8801b18da000 R15: 1ffff10036330e31 [ 30.030388] ? smc_unhash_sk+0x335/0x450 [ 30.034431] ? smc_unhash_sk+0x335/0x450 [ 30.038471] ? smc_hash_sk+0x2f0/0x2f0 [ 30.042336] ? release_sock+0x1d4/0x2a0 [ 30.046283] ? __local_bh_enable_ip+0x121/0x230 [ 30.050925] ? __release_sock+0x360/0x360 [ 30.055047] ? smc_release+0x23c/0x580 [ 30.058906] ? trace_hardirqs_on+0xd/0x10 [ 30.063030] ? __local_bh_enable_ip+0x121/0x230 [ 30.067675] smc_release+0x321/0x580 [ 30.071367] sock_release+0x8d/0x1e0 [ 30.075055] ? sock_alloc_file+0x560/0x560 [ 30.079261] sock_close+0x16/0x20 [ 30.082687] __fput+0x327/0x7e0 [ 30.085946] ? fput+0x140/0x140 [ 30.089204] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.093678] ____fput+0x15/0x20 [ 30.096934] task_work_run+0x199/0x270 [ 30.100800] ? task_work_cancel+0x210/0x210 [ 30.105095] ? _raw_spin_unlock+0x22/0x30 [ 30.109217] ? switch_task_namespaces+0x87/0xc0 [ 30.113867] do_exit+0x9bb/0x1ad0 [ 30.117301] ? mm_update_next_owner+0x930/0x930 [ 30.121948] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.127110] ? __lock_acquire+0x664/0x3e00 [ 30.131326] ? check_noncircular+0x20/0x20 [ 30.135534] ? __lock_is_held+0xb6/0x140 [ 30.139587] ? __lock_is_held+0xb6/0x140 [ 30.143721] ? check_noncircular+0x20/0x20 [ 30.147934] ? select_task_rq_fair+0x2910/0x2910 [ 30.152663] ? check_noncircular+0x20/0x20 [ 30.156871] ? __enqueue_entity+0x109/0x1e0 [ 30.161177] ? memset+0x31/0x40 [ 30.164437] ? find_held_lock+0x35/0x1d0 [ 30.168480] ? get_signal+0x7a9/0x16d0 [ 30.172341] ? lock_downgrade+0x980/0x980 [ 30.176470] do_group_exit+0x149/0x400 [ 30.180339] ? do_raw_spin_trylock+0x190/0x190 [ 30.184897] ? SyS_exit+0x30/0x30 [ 30.188326] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.192796] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.197791] get_signal+0x73a/0x16d0 [ 30.201505] ? ptrace_notify+0x130/0x130 [ 30.205545] ? __schedule+0x90d/0x2070 [ 30.209402] ? lock_downgrade+0x980/0x980 [ 30.213529] ? __sched_text_start+0x8/0x8 [ 30.217650] ? __local_bh_enable_ip+0x121/0x230 [ 30.222297] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.227287] ? release_sock+0x1d4/0x2a0 [ 30.231233] ? trace_hardirqs_on+0xd/0x10 [ 30.235367] do_signal+0x90/0x1e90 [ 30.238880] ? release_sock+0x1d4/0x2a0 [ 30.242835] ? setup_sigcontext+0x7d0/0x7d0 [ 30.247142] ? schedule+0xf5/0x430 [ 30.250655] ? SYSC_connect+0x2e0/0x4a0 [ 30.254606] ? __schedule+0x2070/0x2070 [ 30.258554] ? SYSC_bind+0x410/0x410 [ 30.262258] ? exit_to_usermode_loop+0x8c/0x2f0 [ 30.266914] exit_to_usermode_loop+0x258/0x2f0 [ 30.271480] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.277004] ? do_fast_syscall_32+0x156/0xf9f [ 30.281496] do_fast_syscall_32+0xbe6/0xf9f [ 30.285819] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.290843] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.295416] ? finish_task_switch+0x1c0/0x860 [ 30.299889] ? finish_task_switch+0x181/0x860 [ 30.304366] ? syscall_return_slowpath+0x2ac/0x550 [ 30.309275] ? prepare_exit_to_usermode+0x350/0x350 [ 30.314445] ? sysret32_from_system_call+0x5/0x3c [ 30.319270] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.324192] entry_SYSENTER_compat+0x70/0x7f [ 30.328575] RIP: 0023:0xf7f9fc79 [ 30.331913] RSP: 002b:00000000f7f7a1fc EFLAGS: 00000292 ORIG_RAX: 00000000000000f0 [ 30.339610] RAX: 0000000000000001 RBX: 00000000080f9ff4 RCX: 0000000000000001 [ 30.346867] RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000 [ 30.354128] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 30.361374] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.368624] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.376640] Dumping ftrace buffer: [ 30.380303] (ftrace buffer empty) [ 30.383990] Kernel Offset: disabled [ 30.387594] Rebooting in 86400 seconds..