[....] Starting enhanced syslogd: rsyslogd[ 10.659494] audit: type=1400 audit(1514768594.697:5): avc: denied { syslog } for pid=2996 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: [ 16.560903] audit: type=1400 audit(1514768600.598:6): avc: denied { map } for pid=3137 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 '10.128.0.32' (ECDSA) to the list of known hosts. executing program executing program [ 29.535907] audit: type=1400 audit(1514768613.573:7): avc: denied { map } for pid=3153 comm="syzkaller531986" path="/root/syzkaller531986862" 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 [ 29.565923] ------------[ cut here ]------------ [ 29.570728] socket already in reuseport group [ 29.570829] WARNING: CPU: 0 PID: 3154 at net/core/sock_reuseport.c:119 reuseport_add_sock+0x742/0x9b0 [ 29.584621] Kernel panic - not syncing: panic_on_warn set ... [ 29.584621] [ 29.592052] CPU: 0 PID: 3154 Comm: syzkaller531986 Not tainted 4.15.0-rc4-next-20171221+ #78 [ 29.600596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.609928] Call Trace: [ 29.612489] dump_stack+0x194/0x257 [ 29.616089] ? arch_local_irq_restore+0x53/0x53 [ 29.620733] ? vsnprintf+0x1ed/0x1900 [ 29.624508] panic+0x1e4/0x41c [ 29.627670] ? refcount_error_report+0x214/0x214 [ 29.632394] ? show_regs_print_info+0x18/0x18 [ 29.636865] ? __warn+0x1c1/0x200 [ 29.640305] ? reuseport_add_sock+0x742/0x9b0 [ 29.644767] __warn+0x1dc/0x200 [ 29.648014] ? console_unlock+0x971/0xd70 [ 29.652136] ? reuseport_add_sock+0x742/0x9b0 [ 29.656603] report_bug+0x211/0x2d0 [ 29.660207] fixup_bug.part.11+0x37/0x80 [ 29.664239] do_error_trap+0x2d7/0x3e0 [ 29.668097] ? __down_trylock_console_sem+0x10d/0x1e0 [ 29.673258] ? math_error+0x400/0x400 [ 29.677038] ? vprintk_emit+0x3ea/0x590 [ 29.680993] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.685810] do_invalid_op+0x1b/0x20 [ 29.689495] invalid_op+0x22/0x40 [ 29.692917] RIP: 0010:reuseport_add_sock+0x742/0x9b0 [ 29.697987] RSP: 0018:ffff8801bcb6f918 EFLAGS: 00010282 [ 29.703319] RAX: dffffc0000000008 RBX: ffff8801c920b440 RCX: ffffffff8159f9ce [ 29.710558] RDX: 0000000000000000 RSI: 1ffff1003796dede RDI: 0000000000000293 [ 29.717795] RBP: ffff8801bcb6fab0 R08: 1ffff1003796dea0 R09: 0000000000000000 [ 29.725034] R10: ffff8801bcb6f7d0 R11: 0000000000000000 R12: 1ffff1003796df2d [ 29.732273] R13: ffff8801d3b2e430 R14: ffff8801bcb6fa88 R15: 1ffff1003796df31 [ 29.739532] ? vprintk_func+0x5e/0xc0 [ 29.743310] ? reuseport_add_sock+0x742/0x9b0 [ 29.747790] ? sock_i_uid+0x8d/0xb0 [ 29.751390] ? reuseport_alloc+0x390/0x390 [ 29.755593] ? __inet_hash+0x23a/0x10d0 [ 29.759544] ? mark_held_locks+0xaf/0x100 [ 29.763664] ? __local_bh_enable_ip+0x121/0x230 [ 29.768313] ? trace_hardirqs_on_caller+0x19e/0x5c0 [ 29.773297] ? sock_i_uid+0x8d/0xb0 [ 29.776894] ? trace_hardirqs_on+0xd/0x10 [ 29.781013] ? __local_bh_enable_ip+0x121/0x230 [ 29.785654] ? inet_rcv_saddr_equal+0x12d/0x230 [ 29.790301] ? _raw_read_unlock_bh+0x30/0x40 [ 29.794685] __inet_hash+0x9c4/0x10d0 [ 29.798466] ? inet_ehash_nolisten+0x180/0x180 [ 29.803018] ? reqsk_timer_handler+0xea0/0xea0 [ 29.807586] ? avc_has_perm+0x43e/0x680 [ 29.811537] ? __lock_is_held+0xb6/0x140 [ 29.815578] ? rcu_read_lock_sched_held+0x108/0x120 [ 29.820565] ? inet_sk_state_store+0xf2/0x530 [ 29.825031] ? inet_sendpage+0x660/0x660 [ 29.829063] ? __raw_spin_lock_init+0x1c/0x100 [ 29.833632] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.838621] ? __lockdep_init_map+0xe4/0x650 [ 29.842999] ? __local_bh_enable_ip+0x121/0x230 [ 29.847637] ? inet_hash+0x41/0x90 [ 29.851147] ? reqsk_timer_handler+0xea0/0xea0 [ 29.855707] inet_hash+0x61/0x90 [ 29.859044] inet_csk_listen_start+0x258/0x310 [ 29.863608] inet_listen+0x19a/0x440 [ 29.867296] ? inet_exit_net+0x10/0x10 [ 29.871156] ? selinux_socket_listen+0x36/0x40 [ 29.875708] ? security_socket_listen+0x81/0xb0 [ 29.880353] SyS_listen+0x1aa/0x350 [ 29.883949] ? SyS_bind+0x30/0x30 [ 29.887373] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 29.892200] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.897195] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.901927] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 29.906649] RIP: 0033:0x445639 [ 29.909810] RSP: 002b:00007fa12f093db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000032 [ 29.917487] RAX: ffffffffffffffda RBX: 00000000006dac24 RCX: 0000000000445639 [ 29.924727] RDX: 0000000000445639 RSI: 0000000000000000 RDI: 0000000000000005 [ 29.931964] RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000 [ 29.939201] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 29.946526] R13: 00007ffc5759d0af R14: 00007fa12f0949c0 R15: 0000000000000008 [ 29.954274] Dumping ftrace buffer: [ 29.957831] (ftrace buffer empty) [ 29.961513] Kernel Offset: disabled [ 29.965112] Rebooting in 86400 seconds..