[ 32.398736][ T26] audit: type=1800 audit(1552288419.442:27): pid=7311 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 32.422154][ T26] audit: type=1800 audit(1552288419.452:28): pid=7311 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 33.134515][ T26] audit: type=1800 audit(1552288420.222:29): pid=7311 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 33.161339][ T26] audit: type=1800 audit(1552288420.232:30): pid=7311 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.238' (ECDSA) to the list of known hosts. syzkaller login: [ 43.133009][ T7474] IPVS: ftp: loaded support on port[0] = 21 [ 43.133311][ T7475] IPVS: ftp: loaded support on port[0] = 21 [ 43.143295][ T7472] IPVS: ftp: loaded support on port[0] = 21 [ 43.148148][ T7473] IPVS: ftp: loaded support on port[0] = 21 [ 43.153941][ T7476] IPVS: ftp: loaded support on port[0] = 21 [ 43.157013][ T7471] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 51.975806][ T8288] WARNING: CPU: 0 PID: 8288 at kernel/events/core.c:1835 perf_group_attach+0x3fd/0x4d0 [ 51.985578][ T8288] Kernel panic - not syncing: panic_on_warn set ... [ 51.992185][ T8288] CPU: 0 PID: 8288 Comm: syz-executor852 Not tainted 5.0.0+ #16 [ 51.999790][ T8288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.009822][ T8288] Call Trace: [ 52.013178][ T8288] dump_stack+0x172/0x1f0 [ 52.017492][ T8288] ? perf_group_attach+0x3a0/0x4d0 [ 52.022591][ T8288] panic+0x2cb/0x65c [ 52.026563][ T8288] ? __warn_printk+0xf3/0xf3 [ 52.031144][ T8288] ? perf_group_attach+0x3fd/0x4d0 [ 52.036532][ T8288] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.042759][ T8288] ? __warn.cold+0x5/0x45 [ 52.047157][ T8288] ? __warn+0xe8/0x1d0 [ 52.051218][ T8288] ? perf_group_attach+0x3fd/0x4d0 [ 52.056309][ T8288] __warn.cold+0x20/0x45 [ 52.060537][ T8288] ? perf_group_attach+0x3fd/0x4d0 [ 52.065631][ T8288] report_bug+0x263/0x2b0 [ 52.069950][ T8288] do_error_trap+0x11b/0x200 [ 52.074611][ T8288] do_invalid_op+0x37/0x50 [ 52.079006][ T8288] ? perf_group_attach+0x3fd/0x4d0 [ 52.084100][ T8288] invalid_op+0x14/0x20 [ 52.088234][ T8288] RIP: 0010:perf_group_attach+0x3fd/0x4d0 [ 52.093933][ T8288] Code: ff 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 75 57 48 8b 5b 10 48 83 eb 10 49 39 dc 75 d4 e9 20 ff ff ff e8 53 ba eb ff <0f> 0b e9 55 fd ff ff 48 c7 c7 d8 67 5d 89 e8 60 b3 23 00 e9 5b fc [ 52.113603][ T8288] RSP: 0018:ffff88808d29fa90 EFLAGS: 00010093 [ 52.119735][ T8288] RAX: ffff8880a6058100 RBX: ffff8880a7a96880 RCX: ffffffff81849a38 [ 52.127684][ T8288] RDX: 0000000000000000 RSI: ffffffff81849d5d RDI: ffff8880a7a96a98 [ 52.135726][ T8288] RBP: ffff88808d29fac0 R08: ffff8880a6058100 R09: ffffffff899a7008 [ 52.143827][ T8288] R10: ffffffff899a7010 R11: 0000000000000001 R12: ffff8880a6741740 [ 52.151869][ T8288] R13: ffffe8ffffc13780 R14: 0000000000000000 R15: ffff8880ae832048 [ 52.159838][ T8288] ? perf_group_attach+0xd8/0x4d0 [ 52.164949][ T8288] ? perf_group_attach+0x3fd/0x4d0 [ 52.170058][ T8288] __perf_install_in_context+0x4b5/0x960 [ 52.175673][ T8288] ? __perf_event_enable+0x920/0x920 [ 52.180936][ T8288] ? perf_duration_warn+0x40/0x40 [ 52.185941][ T8288] remote_function+0x12b/0x1a0 [ 52.190690][ T8288] generic_exec_single+0x284/0x4b0 [ 52.195784][ T8288] smp_call_function_single+0x12d/0x420 [ 52.201307][ T8288] ? _raw_spin_unlock+0x2d/0x50 [ 52.206137][ T8288] ? perf_duration_warn+0x40/0x40 [ 52.211147][ T8288] ? generic_exec_single+0x4b0/0x4b0 [ 52.216415][ T8288] ? __do_sys_perf_event_open+0x1a5b/0x24e0 [ 52.222309][ T8288] perf_install_in_context+0x369/0x3d0 [ 52.227762][ T8288] ? list_add_event+0xcd0/0xcd0 [ 52.232593][ T8288] ? __perf_event_enable+0x920/0x920 [ 52.237949][ T8288] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.244173][ T8288] __do_sys_perf_event_open+0x1858/0x24e0 [ 52.249966][ T8288] ? perf_event_set_output+0x4e0/0x4e0 [ 52.255416][ T8288] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.260854][ T8288] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.266289][ T8288] ? do_syscall_64+0x26/0x610 [ 52.270943][ T8288] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.276988][ T8288] ? do_syscall_64+0x26/0x610 [ 52.281648][ T8288] __x64_sys_perf_event_open+0xbe/0x150 [ 52.287264][ T8288] do_syscall_64+0x103/0x610 [ 52.291838][ T8288] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.297707][ T8288] RIP: 0033:0x446ef9 [ 52.301581][ T8288] Code: e8 9c e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.321171][ T8288] RSP: 002b:00007f919959adb8 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 52.329559][ T8288] RAX: ffffffffffffffda RBX: 00000000006dcc28 RCX: 0000000000446ef9 [ 52.337603][ T8288] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000020000000 [ 52.345660][ T8288] RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000 [ 52.353608][ T8288] R10: 0000000000000003 R11: 0000000000000246 R12: 00000000006dcc2c [ 52.361561][ T8288] R13: 00007fff4cee863f R14: 00007f919959b9c0 R15: 20c49ba5e353f7cf [ 52.371257][ T8288] Kernel Offset: disabled [ 52.375647][ T8288] Rebooting in 86400 seconds..