[....] Starting enhanced syslogd: rsyslogd[ 11.725883] audit: type=1400 audit(1514778125.649:5): avc: denied { syslog } for pid=3341 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: [ 18.565603] audit: type=1400 audit(1514778132.489:6): avc: denied { map } for pid=3480 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 '10.128.0.30' (ECDSA) to the list of known hosts. executing program executing program [ 28.918545] audit: type=1400 audit(1514778142.842:7): avc: denied { map } for pid=3495 comm="syzkaller869503" path="/root/syzkaller869503995" 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 [ 28.956409] ------------[ cut here ]------------ [ 28.961214] socket already in reuseport group [ 28.961324] WARNING: CPU: 0 PID: 3496 at net/core/sock_reuseport.c:119 reuseport_add_sock+0x742/0x9b0 [ 28.975115] Kernel panic - not syncing: panic_on_warn set ... [ 28.975115] [ 28.982442] CPU: 0 PID: 3496 Comm: syzkaller869503 Not tainted 4.15.0-rc6+ #245 [ 28.989850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.999167] Call Trace: [ 29.001725] dump_stack+0x194/0x257 [ 29.005322] ? arch_local_irq_restore+0x53/0x53 [ 29.009965] ? vsnprintf+0x1ed/0x1900 [ 29.013734] panic+0x1e4/0x41c [ 29.016893] ? refcount_error_report+0x214/0x214 [ 29.021612] ? show_regs_print_info+0x18/0x18 [ 29.026079] ? __warn+0x1c1/0x200 [ 29.029500] ? reuseport_add_sock+0x742/0x9b0 [ 29.033960] __warn+0x1dc/0x200 [ 29.037205] ? console_unlock+0x983/0xd80 [ 29.041319] ? reuseport_add_sock+0x742/0x9b0 [ 29.045781] report_bug+0x211/0x2d0 [ 29.049380] fixup_bug.part.11+0x37/0x80 [ 29.053408] do_error_trap+0x2d7/0x3e0 [ 29.057261] ? __down_trylock_console_sem+0x10d/0x1e0 [ 29.062420] ? math_error+0x400/0x400 [ 29.066197] ? vprintk_emit+0x3ea/0x590 [ 29.070149] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.074962] do_invalid_op+0x1b/0x20 [ 29.078644] invalid_op+0x22/0x40 [ 29.082063] RIP: 0010:reuseport_add_sock+0x742/0x9b0 [ 29.087127] RSP: 0018:ffff8801bf5f7968 EFLAGS: 00010286 [ 29.092456] RAX: dffffc0000000008 RBX: ffff8801bf4905c0 RCX: ffffffff8159d9de [ 29.099700] RDX: 0000000000000000 RSI: 1ffff10037ebeee8 RDI: 0000000000000293 [ 29.106936] RBP: ffff8801bf5f7b00 R08: 1ffff10037ebeeaa R09: 0000000000000000 [ 29.114171] R10: ffff8801bf5f7820 R11: 0000000000000000 R12: 1ffff10037ebef37 [ 29.121405] R13: ffff8801bf47b930 R14: ffff8801bf5f7ad8 R15: 1ffff10037ebef3b [ 29.128652] ? vprintk_func+0x5e/0xc0 [ 29.132424] ? reuseport_add_sock+0x742/0x9b0 [ 29.136890] ? sock_i_uid+0x8d/0xb0 [ 29.140484] ? reuseport_alloc+0x390/0x390 [ 29.144682] ? __inet_hash+0x211/0xb90 [ 29.148545] ? mark_held_locks+0xaf/0x100 [ 29.152663] ? __local_bh_enable_ip+0x121/0x230 [ 29.157299] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 29.162280] ? sock_i_uid+0x8d/0xb0 [ 29.165872] ? trace_hardirqs_on+0xd/0x10 [ 29.169984] ? __local_bh_enable_ip+0x121/0x230 [ 29.174620] ? inet_rcv_saddr_equal+0x12d/0x230 [ 29.179254] ? _raw_read_unlock_bh+0x30/0x40 [ 29.183630] __inet_hash+0x767/0xb90 [ 29.187348] ? inet_ehash_nolisten+0x1a0/0x1a0 [ 29.191930] ? avc_has_perm_noaudit+0x520/0x520 [ 29.196593] ? print_irqtrace_events+0x270/0x270 [ 29.201339] ? __raw_spin_lock_init+0x1c/0x100 [ 29.205889] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.210872] ? __lockdep_init_map+0xe4/0x650 [ 29.215248] ? inet_hash+0x41/0x90 [ 29.218759] inet_hash+0x61/0x90 [ 29.222097] inet_csk_listen_start+0x38f/0x460 [ 29.226650] ? inet_csk_clone_lock+0x4f0/0x4f0 [ 29.231196] ? lock_sock_nested+0x91/0x110 [ 29.235394] ? trace_hardirqs_on+0xd/0x10 [ 29.239507] ? __local_bh_enable_ip+0x121/0x230 [ 29.244148] inet_listen+0x19a/0x440 [ 29.247826] ? tcp_setsockopt+0x89/0xd0 [ 29.251768] ? inet_exit_net+0x10/0x10 [ 29.255624] ? selinux_socket_listen+0x36/0x40 [ 29.260173] ? security_socket_listen+0x81/0xb0 [ 29.264810] SyS_listen+0x1aa/0x350 [ 29.268403] ? SyS_bind+0x30/0x30 [ 29.271824] ? entry_SYSCALL_64_fastpath+0x5/0x9a [ 29.276635] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.281619] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.286346] entry_SYSCALL_64_fastpath+0x23/0x9a [ 29.291066] RIP: 0033:0x445639 [ 29.294223] RSP: 002b:00007f2966197db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000032 [ 29.301898] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445639 [ 29.309133] RDX: 0000000000445639 RSI: 0000000000000000 RDI: 0000000000000006 [ 29.316366] RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000 [ 29.323600] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 29.330835] R13: 00007ffc328a273f R14: 00007f29661989c0 R15: 0000000000000008 [ 29.338252] Dumping ftrace buffer: [ 29.341797] (ftrace buffer empty) [ 29.345473] Kernel Offset: disabled [ 29.349069] Rebooting in 86400 seconds..