[info] Using makefile-style concurrent boot in runlevel 2. [ 25.159726] audit: type=1800 audit(1541850904.156:21): pid=5526 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 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 '10.128.10.15' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.596691] [ 41.598440] ********************************************************** [ 41.605087] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 41.612486] ** ** [ 41.619229] ** trace_printk() being used. Allocating extra memory. ** [ 41.625898] ** ** [ 41.632615] ** This means that this is a DEBUG kernel and it is ** [ 41.639333] ** unsafe for production use. ** [ 41.646004] ** ** [ 41.652705] ** If you see this message and you are not debugging ** [ 41.659407] ** the kernel, report this immediately to your vendor! ** [ 41.666057] ** ** [ 41.672760] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 41.679458] ********************************************************** [ 41.694998] ------------[ cut here ]------------ [ 41.700040] Please remove unsupported % in format string [ 41.705925] WARNING: CPU: 0 PID: 5683 at lib/vsprintf.c:2152 format_decode+0x8fc/0xaf0 [ 41.713968] Kernel panic - not syncing: panic_on_warn set ... [ 41.719841] CPU: 0 PID: 5683 Comm: syz-executor332 Not tainted 4.20.0-rc1+ #329 [ 41.727271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.736648] Call Trace: [ 41.739227] dump_stack+0x244/0x39d [ 41.742848] ? dump_stack_print_info.cold.1+0x20/0x20 [ 41.748031] panic+0x2ad/0x55c [ 41.751216] ? add_taint.cold.5+0x16/0x16 [ 41.755358] ? __warn.cold.8+0x5/0x45 [ 41.759146] ? __warn+0xe8/0x1d0 [ 41.762501] ? format_decode+0x8fc/0xaf0 [ 41.766547] __warn.cold.8+0x20/0x45 [ 41.770247] ? rcu_softirq_qs+0x20/0x20 [ 41.774211] ? format_decode+0x8fc/0xaf0 [ 41.778290] report_bug+0x254/0x2d0 [ 41.781933] do_error_trap+0x11b/0x200 [ 41.785811] do_invalid_op+0x36/0x40 [ 41.789513] ? format_decode+0x8fc/0xaf0 [ 41.793560] invalid_op+0x14/0x20 [ 41.797000] RIP: 0010:format_decode+0x8fc/0xaf0 [ 41.801655] Code: e8 19 39 b5 f9 41 c6 45 00 12 e9 9b fd ff ff e8 0a 39 b5 f9 0f be f3 48 c7 c7 c0 f1 d5 88 c6 05 22 0a 47 02 01 e8 c4 9a 7e f9 <0f> 0b 4d 8b 66 c0 e9 59 fe ff ff 48 8b bd 70 ff ff ff e8 bd 85 f8 [ 41.820544] RSP: 0018:ffff8801b9d6f670 EFLAGS: 00010286 [ 41.825891] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 41.833144] RDX: 0000000000000000 RSI: ffffffff8165e9b5 RDI: 0000000000000005 [ 41.840399] RBP: ffff8801b9d6f718 R08: ffff8801b9cdc3c0 R09: ffffed003b5c3ef8 [ 41.847660] R10: ffffed003b5c3ef8 R11: ffff8801dae1f7c7 R12: ffff8801b9d6faec [ 41.854915] R13: ffff8801b9d6f790 R14: ffff8801b9d6f6f0 R15: 0000000000000000 [ 41.862185] ? vprintk_func+0x85/0x181 [ 41.866065] ? enable_ptr_key_workfn+0x30/0x30 [ 41.870636] ? trace_hardirqs_off_caller+0x310/0x310 [ 41.875745] vsnprintf+0x185/0x1b60 [ 41.879366] ? pointer+0x900/0x900 [ 41.882898] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.888424] ? check_preemption_disabled+0x48/0x280 [ 41.893431] vscnprintf+0x2d/0x80 [ 41.896878] __trace_array_vprintk.part.59+0x5b/0x2f0 [ 41.902055] ? trace_hardirqs_off_caller+0x310/0x310 [ 41.907149] trace_vprintk+0x71/0x90 [ 41.910861] __trace_printk+0xce/0x120 [ 41.914736] ? __trace_bprintk+0x120/0x120 [ 41.918965] ? bpf_test_run+0x175/0x780 [ 41.922942] ? lock_downgrade+0x900/0x900 [ 41.927101] bpf_trace_printk+0xb30/0xc50 [ 41.931236] ? bpf_test_run+0x22b/0x780 [ 41.935218] ? bpf_probe_read_str+0x60/0x60 [ 41.939528] ? bpf_test_run+0x3cb/0x780 [ 41.943507] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 41.949049] ? check_preemption_disabled+0x48/0x280 [ 41.954057] ? kasan_check_read+0x11/0x20 [ 41.958198] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 41.963477] ? rcu_softirq_qs+0x20/0x20 [ 41.967456] ? bpf_cgroup_storage_release+0x220/0x220 [ 41.972638] bpf_prog_12183cdb1cd51dab+0x4e8/0x1000 [ 41.977645] ? bpf_test_run+0x25d/0x780 [ 41.981611] ? netlink_diag_dump+0x2a0/0x2a0 [ 41.986007] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 41.991531] ? bpf_test_init.isra.10+0x70/0x100 [ 41.996191] ? bpf_prog_test_run_skb+0x73b/0xcb0 [ 42.000943] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 42.005773] ? bpf_prog_add+0x69/0xd0 [ 42.009566] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.015092] ? __bpf_prog_get+0x9b/0x290 [ 42.019143] ? bpf_test_finish.isra.9+0x1f0/0x1f0 [ 42.023988] ? bpf_prog_test_run+0x130/0x1a0 [ 42.028392] ? __x64_sys_bpf+0x3d8/0x520 [ 42.032441] ? bpf_prog_get+0x20/0x20 [ 42.036258] ? do_syscall_64+0x1b9/0x820 [ 42.040323] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.045675] ? syscall_return_slowpath+0x5e0/0x5e0 [ 42.050590] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.055423] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.060431] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 42.065450] ? prepare_exit_to_usermode+0x291/0x3b0 [ 42.070479] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.075359] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.081793] Kernel Offset: disabled [ 42.085481] Rebooting in 86400 seconds..