[info] Using makefile-style concurrent boot in runlevel 2. [ 24.433113] audit: type=1800 audit(1541838989.820:21): pid=5497 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.467275] audit: type=1800 audit(1541838989.830:22): pid=5497 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 '10.128.0.115' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.840111] [ 48.841841] ********************************************************** [ 48.848590] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 48.855282] ** ** [ 48.861931] ** trace_printk() being used. Allocating extra memory. ** [ 48.868624] ** ** [ 48.875348] ** This means that this is a DEBUG kernel and it is ** [ 48.882011] ** unsafe for production use. ** [ 48.888718] ** ** [ 48.895407] ** If you see this message and you are not debugging ** [ 48.902055] ** the kernel, report this immediately to your vendor! ** [ 48.908757] ** ** [ 48.915592] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 48.922244] ********************************************************** [ 48.937258] ------------[ cut here ]------------ [ 48.942143] Please remove unsupported % in format string [ 48.948213] WARNING: CPU: 0 PID: 5654 at lib/vsprintf.c:2152 format_decode+0x8fc/0xaf0 [ 48.956284] Kernel panic - not syncing: panic_on_warn set ... [ 48.962158] CPU: 0 PID: 5654 Comm: syz-executor818 Not tainted 4.20.0-rc1+ #80 [ 48.969502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.978959] Call Trace: [ 48.981568] dump_stack+0x244/0x39d [ 48.985342] ? dump_stack_print_info.cold.1+0x20/0x20 [ 48.990525] panic+0x2ad/0x55c [ 48.993707] ? add_taint.cold.5+0x16/0x16 [ 48.997847] ? __warn.cold.8+0x5/0x45 [ 49.001635] ? __warn+0xe8/0x1d0 [ 49.004991] ? format_decode+0x8fc/0xaf0 [ 49.009052] __warn.cold.8+0x20/0x45 [ 49.012750] ? rcu_softirq_qs+0x20/0x20 [ 49.016715] ? format_decode+0x8fc/0xaf0 [ 49.020762] report_bug+0x254/0x2d0 [ 49.024390] do_error_trap+0x11b/0x200 [ 49.028281] do_invalid_op+0x36/0x40 [ 49.032041] ? format_decode+0x8fc/0xaf0 [ 49.036098] invalid_op+0x14/0x20 [ 49.039536] RIP: 0010:format_decode+0x8fc/0xaf0 [ 49.044195] Code: e8 c9 37 b5 f9 41 c6 45 00 12 e9 9b fd ff ff e8 ba 37 b5 f9 0f be f3 48 c7 c7 c0 f1 d5 88 c6 05 d2 08 47 02 01 e8 74 99 7e f9 <0f> 0b 4d 8b 66 c0 e9 59 fe ff ff 48 8b bd 70 ff ff ff e8 6d 84 f8 [ 49.063094] RSP: 0018:ffff8801ba76f670 EFLAGS: 00010286 [ 49.068444] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 49.075845] RDX: 0000000000000000 RSI: ffffffff8165e9b5 RDI: 0000000000000005 [ 49.083101] RBP: ffff8801ba76f718 R08: ffff8801b6cfc0c0 R09: 0000000000000000 [ 49.090359] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801ba76faec [ 49.097616] R13: ffff8801ba76f790 R14: ffff8801ba76f6f0 R15: 0000000000000000 [ 49.104887] ? vprintk_func+0x85/0x181 [ 49.108852] ? enable_ptr_key_workfn+0x30/0x30 [ 49.113477] ? trace_hardirqs_off_caller+0x310/0x310 [ 49.118576] vsnprintf+0x185/0x1b60 [ 49.122193] ? pointer+0x900/0x900 [ 49.125719] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.131252] ? check_preemption_disabled+0x48/0x280 [ 49.136307] vscnprintf+0x2d/0x80 [ 49.139761] __trace_array_vprintk.part.59+0x5b/0x2f0 [ 49.144945] ? trace_hardirqs_off_caller+0x310/0x310 [ 49.150037] trace_vprintk+0x71/0x90 [ 49.153740] __trace_printk+0xce/0x120 [ 49.157616] ? __trace_bprintk+0x120/0x120 [ 49.161845] ? bpf_test_run+0x175/0x780 [ 49.165815] ? lock_downgrade+0x900/0x900 [ 49.169952] bpf_trace_printk+0xb30/0xc50 [ 49.174214] ? bpf_test_run+0x22b/0x780 [ 49.178206] ? bpf_probe_read_str+0x60/0x60 [ 49.182527] ? bpf_test_run+0x3cb/0x780 [ 49.186491] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.192021] ? check_preemption_disabled+0x48/0x280 [ 49.197084] ? kasan_check_read+0x11/0x20 [ 49.201231] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 49.206504] ? rcu_softirq_qs+0x20/0x20 [ 49.210547] ? bpf_cgroup_storage_release+0x220/0x220 [ 49.215736] bpf_prog_12183cdb1cd51dab+0x3e7/0x1000 [ 49.220745] ? bpf_test_run+0x25d/0x780 [ 49.224713] ? netlink_diag_dump+0x2a0/0x2a0 [ 49.229127] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 49.234656] ? bpf_prog_test_run_skb+0x73b/0xcb0 [ 49.239415] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 49.244266] ? bpf_prog_add+0x69/0xd0 [ 49.248057] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.253621] ? __bpf_prog_get+0x9b/0x290 [ 49.257677] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 49.262505] ? bpf_prog_test_run+0x130/0x1a0 [ 49.266902] ? __x64_sys_bpf+0x3d8/0x520 [ 49.270951] ? bpf_prog_get+0x20/0x20 [ 49.274750] ? do_syscall_64+0x1b9/0x820 [ 49.278800] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 49.284159] ? syscall_return_slowpath+0x5e0/0x5e0 [ 49.289077] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.293907] ? trace_hardirqs_on_caller+0x310/0x310 [ 49.299031] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 49.304060] ? prepare_exit_to_usermode+0x291/0x3b0 [ 49.309077] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.313927] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.320750] Kernel Offset: disabled [ 49.324443] Rebooting in 86400 seconds..