[info] Using makefile-style concurrent boot in runlevel 2. [ 59.270389][ T26] audit: type=1800 audit(1565283264.806:21): pid=9301 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 59.312045][ T26] audit: type=1800 audit(1565283264.806:22): pid=9301 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.214' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 69.572738][ T9452] ------------[ cut here ]------------ [ 69.578289][ T9452] verifier backtracking bug [ 69.578442][ T9452] WARNING: CPU: 1 PID: 9452 at kernel/bpf/verifier.c:1782 __mark_chain_precision+0x21e7/0x2320 [ 69.593216][ T9452] Kernel panic - not syncing: panic_on_warn set ... [ 69.599785][ T9452] CPU: 1 PID: 9452 Comm: syz-executor115 Not tainted 5.3.0-rc3+ #68 [ 69.607739][ T9452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.617793][ T9452] Call Trace: [ 69.621082][ T9452] dump_stack+0x1d8/0x2f8 [ 69.625394][ T9452] panic+0x25c/0x799 [ 69.629260][ T9452] ? __warn+0x126/0x230 [ 69.633415][ T9452] __warn+0x22f/0x230 [ 69.637376][ T9452] ? __mark_chain_precision+0x21e7/0x2320 [ 69.643068][ T9452] report_bug+0x190/0x290 [ 69.647473][ T9452] ? __mark_chain_precision+0x21e7/0x2320 [ 69.653173][ T9452] do_error_trap+0xd7/0x440 [ 69.657650][ T9452] do_invalid_op+0x36/0x40 [ 69.662144][ T9452] ? __mark_chain_precision+0x21e7/0x2320 [ 69.667854][ T9452] invalid_op+0x23/0x30 [ 69.671996][ T9452] RIP: 0010:__mark_chain_precision+0x21e7/0x2320 [ 69.678294][ T9452] Code: 0f 8c 83 df ff ff e8 b8 8f 28 00 e9 79 df ff ff e8 8e 96 ef ff c6 05 9b c7 36 07 01 48 c7 c7 48 c2 3d 88 31 c0 e8 59 77 c2 ff <0f> 0b e9 82 e1 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 9f df ff [ 69.697875][ T9452] RSP: 0018:ffff888096d27590 EFLAGS: 00010246 [ 69.703927][ T9452] RAX: 018627706b683000 RBX: 0000000000000000 RCX: ffff888097920480 [ 69.711871][ T9452] RDX: 0000000000000000 RSI: ffffffff815d0e88 RDI: 0000000000000282 [ 69.719832][ T9452] RBP: ffff888096d276b0 R08: ffffffff81790b14 R09: fffffbfff111a93f [ 69.727778][ T9452] R10: fffffbfff111a93f R11: 0000000000000000 R12: 0000000000000001 [ 69.735723][ T9452] R13: ffff88809bf8cd10 R14: 0000000000000000 R15: 0000000000000000 [ 69.743679][ T9452] ? trace_hardirqs_on+0x34/0x80 [ 69.748601][ T9452] ? vprintk_default+0x28/0x30 [ 69.753346][ T9452] ? kmalloc_array+0x60/0x60 [ 69.757909][ T9452] do_check+0xba5f/0x23960 [ 69.762301][ T9452] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.768382][ T9452] ? _raw_spin_unlock_irqrestore+0xbc/0xe0 [ 69.774169][ T9452] bpf_check+0x3f5a/0xe730 [ 69.778581][ T9452] ? trace_lock_release+0x135/0x1a0 [ 69.783755][ T9452] ? ktime_get_with_offset+0x98/0x190 [ 69.789098][ T9452] ? read_seqcount_begin+0x12a/0x1c0 [ 69.794378][ T9452] ? trace_irq_enable_rcuidle+0x23/0x1e0 [ 69.799997][ T9452] ? memset+0x31/0x40 [ 69.803953][ T9452] __do_sys_bpf+0x7a38/0xbf20 [ 69.808604][ T9452] ? handle_mm_fault+0x1270/0x6010 [ 69.813697][ T9452] ? do_user_addr_fault+0x5ba/0xaf0 [ 69.818895][ T9452] ? up_read+0x22/0x30 [ 69.822933][ T9452] ? do_user_addr_fault+0x655/0xaf0 [ 69.828121][ T9452] ? check_preemption_disabled+0xb7/0x2a0 [ 69.833841][ T9452] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 69.839287][ T9452] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 69.844980][ T9452] ? do_syscall_64+0x1d/0x140 [ 69.849629][ T9452] __x64_sys_bpf+0x7a/0x90 [ 69.854018][ T9452] do_syscall_64+0xfe/0x140 [ 69.858493][ T9452] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.864363][ T9452] RIP: 0033:0x4402b9 [ 69.868230][ T9452] 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 [ 69.887808][ T9452] RSP: 002b:00007ffe453ca588 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 69.896191][ T9452] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402b9 [ 69.904133][ T9452] RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005 [ 69.912088][ T9452] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 69.920030][ T9452] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000401b40 [ 69.927975][ T9452] R13: 0000000000401bd0 R14: 0000000000000000 R15: 0000000000000000 [ 69.936996][ T9452] Kernel Offset: disabled [ 69.941320][ T9452] Rebooting in 86400 seconds..