[info] Using makefile-style concurrent boot in runlevel 2. [ 24.192928] audit: type=1800 audit(1538178123.962:21): pid=5199 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.219187] audit: type=1800 audit(1538178123.962:22): pid=5199 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.48' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.409819] ------------[ cut here ]------------ [ 38.414609] illegal size (0) or align (8) for percpu allocation [ 38.421565] WARNING: CPU: 0 PID: 5355 at mm/percpu.c:1382 pcpu_alloc+0x1359/0x15e0 [ 38.429294] Kernel panic - not syncing: panic_on_warn set ... [ 38.429294] [ 38.436675] CPU: 0 PID: 5355 Comm: syz-executor747 Not tainted 4.19.0-rc5+ #105 [ 38.444113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.453449] Call Trace: [ 38.456028] dump_stack+0x1c4/0x2b4 [ 38.459665] ? dump_stack_print_info.cold.2+0x52/0x52 [ 38.464853] panic+0x238/0x4e7 [ 38.468028] ? add_taint.cold.5+0x16/0x16 [ 38.472163] ? __warn.cold.8+0x148/0x1ba [ 38.476203] ? __warn.cold.8+0x117/0x1ba [ 38.480252] ? pcpu_alloc+0x1359/0x15e0 [ 38.484210] __warn.cold.8+0x163/0x1ba [ 38.488082] ? rcu_bh_qs+0xc0/0xc0 [ 38.491616] ? pcpu_alloc+0x1359/0x15e0 [ 38.495578] report_bug+0x254/0x2d0 [ 38.499204] do_error_trap+0x1fc/0x4d0 [ 38.503095] ? math_error+0x3f0/0x3f0 [ 38.506896] ? vprintk_default+0x28/0x30 [ 38.510948] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.515777] ? trace_hardirqs_on_caller+0x310/0x310 [ 38.520780] ? printk+0xa7/0xcf [ 38.524050] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.528882] do_invalid_op+0x1b/0x20 [ 38.532583] invalid_op+0x14/0x20 [ 38.536025] RIP: 0010:pcpu_alloc+0x1359/0x15e0 [ 38.540592] Code: ff e8 2b 9f ff ff e9 70 f4 ff ff e8 01 ee d0 ff 48 8b 95 c8 fd ff ff 48 c7 c7 40 51 33 88 48 8b b5 e8 fd ff ff e8 87 d4 9a ff <0f> 0b 31 db e9 29 ee ff ff e8 d9 ed d0 ff e8 04 f8 b9 ff 31 ff 41 [ 38.559505] RSP: 0018:ffff8801d8fef840 EFLAGS: 00010282 [ 38.564878] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 38.572131] RDX: 0000000000000000 RSI: ffffffff81650cb5 RDI: 0000000000000005 [ 38.579384] RBP: ffff8801d8fefab8 R08: ffff8801d8ec23c0 R09: ffffed003b584fe8 [ 38.586652] R10: ffffed003b584fe8 R11: ffff8801dac27f47 R12: 00000000006280c0 [ 38.593907] R13: ffffffffffffffff R14: 0000000000000008 R15: ffff8801bfc70034 [ 38.601177] ? vprintk_func+0x85/0x181 [ 38.605098] ? __x64_sys_bpf+0x3d8/0x510 [ 38.609181] ? do_syscall_64+0x1b9/0x820 [ 38.613229] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.618590] ? pcpu_balance_workfn+0x1740/0x1740 [ 38.623343] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.628866] ? check_preemption_disabled+0x48/0x200 [ 38.633869] ? check_preemption_disabled+0x48/0x200 [ 38.638874] ? rcu_lockdep_current_cpu_online+0x1f0/0x2d0 [ 38.644396] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 38.649656] ? rcu_pm_notify+0xc0/0xc0 [ 38.653559] ? bpf_cgroup_storage_alloc+0x1b1/0x380 [ 38.658558] ? bpf_cgroup_storage_alloc+0x1b1/0x380 [ 38.663560] ? rcu_read_lock_sched_held+0x108/0x120 [ 38.668583] ? kmem_cache_alloc_node_trace+0x34b/0x740 [ 38.673858] __alloc_percpu_gfp+0x27/0x30 [ 38.677994] bpf_cgroup_storage_alloc+0x2d6/0x380 [ 38.682832] bpf_test_run+0xd1/0x780 [ 38.686554] ? eth_type_trans+0x2ea/0x760 [ 38.690691] ? netlink_diag_dump+0x2a0/0x2a0 [ 38.695100] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.700626] ? bpf_test_init.isra.9+0x70/0x100 [ 38.705195] bpf_prog_test_run_skb+0x634/0xb40 [ 38.709767] ? bpf_test_finish.isra.8+0x1f0/0x1f0 [ 38.714600] ? bpf_prog_add+0x69/0xd0 [ 38.718394] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.723913] ? __bpf_prog_get+0x9b/0x290 [ 38.727959] ? bpf_test_finish.isra.8+0x1f0/0x1f0 [ 38.732784] bpf_prog_test_run+0x130/0x1a0 [ 38.737004] __x64_sys_bpf+0x3d8/0x510 [ 38.740876] ? bpf_prog_get+0x20/0x20 [ 38.744669] do_syscall_64+0x1b9/0x820 [ 38.748536] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 38.753898] ? syscall_return_slowpath+0x5e0/0x5e0 [ 38.758811] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.763645] ? trace_hardirqs_on_caller+0x310/0x310 [ 38.768645] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 38.773645] ? prepare_exit_to_usermode+0x291/0x3b0 [ 38.778664] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.783500] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.788670] RIP: 0033:0x440379 [ 38.791852] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 38.810738] RSP: 002b:00007ffd94681f78 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 38.818432] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440379 [ 38.825683] RDX: 0000000000000028 RSI: 0000000020000180 RDI: 000000000000000a [ 38.832937] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 38.840195] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401c00 [ 38.847445] R13: 0000000000401c90 R14: 0000000000000000 R15: 0000000000000000 [ 38.855676] Kernel Offset: disabled [ 38.859337] Rebooting in 86400 seconds..