[....] Starting enhanced syslogd: rsyslogd[ 12.188548] audit: type=1400 audit(1514761589.869:5): avc: denied { syslog } for pid=3340 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: [ 18.350300] audit: type=1400 audit(1514761596.031:6): avc: denied { map } for pid=3481 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 '10.128.15.204' (ECDSA) to the list of known hosts. executing program executing program [ 41.962827] audit: type=1400 audit(1514761619.643:7): avc: denied { map } for pid=3498 comm="syzkaller155873" path="/root/syzkaller155873914" 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 [ 41.993487] ------------[ cut here ]------------ [ 41.998296] socket already in reuseport group [ 41.998414] WARNING: CPU: 1 PID: 3499 at net/core/sock_reuseport.c:119 reuseport_add_sock+0x742/0x9b0 [ 42.012197] Kernel panic - not syncing: panic_on_warn set ... [ 42.012197] [ 42.019541] CPU: 1 PID: 3499 Comm: syzkaller155873 Not tainted 4.15.0-rc5+ #154 [ 42.026955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.036282] Call Trace: [ 42.038840] dump_stack+0x194/0x257 [ 42.042441] ? arch_local_irq_restore+0x53/0x53 [ 42.047093] ? vsnprintf+0x1ed/0x1900 [ 42.050870] panic+0x1e4/0x41c [ 42.054031] ? refcount_error_report+0x214/0x214 [ 42.058758] ? show_regs_print_info+0x18/0x18 [ 42.063230] ? __warn+0x1c1/0x200 [ 42.066654] ? reuseport_add_sock+0x742/0x9b0 [ 42.071117] __warn+0x1dc/0x200 [ 42.074366] ? reuseport_add_sock+0x742/0x9b0 [ 42.078833] report_bug+0x211/0x2d0 [ 42.082435] fixup_bug.part.11+0x37/0x80 [ 42.086464] do_error_trap+0x2d7/0x3e0 [ 42.090336] ? math_error+0x400/0x400 [ 42.094109] ? vprintk_emit+0x3ea/0x590 [ 42.098075] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.102901] do_invalid_op+0x1b/0x20 [ 42.106590] invalid_op+0x22/0x40 [ 42.110014] RIP: 0010:reuseport_add_sock+0x742/0x9b0 [ 42.115082] RSP: 0018:ffff8801c01ef7d0 EFLAGS: 00010282 [ 42.120419] RAX: dffffc0000000008 RBX: ffff8801c06bd4c0 RCX: ffffffff8159d9be [ 42.127658] RDX: 0000000000000000 RSI: 1ffff1003803deb5 RDI: 0000000000000293 [ 42.134900] RBP: ffff8801c01ef968 R08: 1ffff1003803de77 R09: 0000000000000000 [ 42.142149] R10: ffff8801c01ef688 R11: 0000000000000000 R12: 1ffff1003803df04 [ 42.149397] R13: ffff8801c068f930 R14: ffff8801c01ef940 R15: 1ffff1003803df08 [ 42.156652] ? vprintk_func+0x5e/0xc0 [ 42.160433] ? sock_i_uid+0x8d/0xb0 [ 42.164030] ? reuseport_alloc+0x390/0x390 [ 42.168235] ? __inet_hash+0x211/0xb90 [ 42.172098] ? mark_held_locks+0xaf/0x100 [ 42.176214] ? __local_bh_enable_ip+0x121/0x230 [ 42.180860] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 42.185842] ? sock_i_uid+0x8d/0xb0 [ 42.189435] ? trace_hardirqs_on+0xd/0x10 [ 42.193550] ? __local_bh_enable_ip+0x121/0x230 [ 42.198188] ? inet_rcv_saddr_equal+0x12d/0x230 [ 42.202826] ? _raw_read_unlock_bh+0x30/0x40 [ 42.207207] __inet_hash+0x767/0xb90 [ 42.210903] ? inet_ehash_nolisten+0x1a0/0x1a0 [ 42.215456] ? avc_has_perm_noaudit+0x520/0x520 [ 42.220095] ? print_irqtrace_events+0x270/0x270 [ 42.224826] ? __raw_spin_lock_init+0x1c/0x100 [ 42.229378] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.234380] ? __lockdep_init_map+0xe4/0x650 [ 42.238757] ? inet_hash+0x41/0x90 [ 42.242269] inet_hash+0x61/0x90 [ 42.245603] inet_csk_listen_start+0x38f/0x460 [ 42.250155] ? inet_csk_clone_lock+0x4f0/0x4f0 [ 42.254714] ? lock_sock_nested+0x91/0x110 [ 42.258916] ? trace_hardirqs_on+0xd/0x10 [ 42.263031] ? __local_bh_enable_ip+0x121/0x230 [ 42.267676] inet_listen+0x19a/0x440 [ 42.271367] ? inet_exit_net+0x10/0x10 [ 42.275224] ? selinux_socket_listen+0x36/0x40 [ 42.279780] ? security_socket_listen+0x81/0xb0 [ 42.284427] SyS_listen+0x1aa/0x350 [ 42.288023] ? SyS_bind+0x30/0x30 [ 42.291457] ? do_fast_syscall_32+0x156/0xf9d [ 42.295924] ? SyS_bind+0x30/0x30 [ 42.299347] do_fast_syscall_32+0x3ee/0xf9d [ 42.303643] ? do_int80_syscall_32+0x9d0/0x9d0 [ 42.308203] ? syscall_return_slowpath+0x2ad/0x550 [ 42.313102] ? prepare_exit_to_usermode+0x340/0x340 [ 42.318089] ? sysret32_from_system_call+0x5/0x3b [ 42.322903] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.327721] entry_SYSENTER_compat+0x54/0x63 [ 42.332104] RIP: 0023:0xf7fd5c79 [ 42.335435] RSP: 002b:00000000f7fd11fc EFLAGS: 00000292 ORIG_RAX: 000000000000016b [ 42.343111] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000000000 [ 42.350353] RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000 [ 42.357601] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 42.364840] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 42.372077] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.379830] Dumping ftrace buffer: [ 42.383401] (ftrace buffer empty) [ 42.387080] Kernel Offset: disabled [ 42.390676] Rebooting in 86400 seconds..