[ 70.458545][ T27] audit: type=1800 audit(1578073651.710:25): pid=9233 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 70.484701][ T27] audit: type=1800 audit(1578073651.710:26): pid=9233 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 70.533582][ T27] audit: type=1800 audit(1578073651.710:27): pid=9233 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 71.102371][ T9299] sshd (9299) used greatest stack depth: 22776 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.112' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 82.244091][ T9386] kasan: CONFIG_KASAN_INLINE enabled [ 82.249485][ T9386] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 82.257874][ T9386] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 82.264832][ T9386] CPU: 1 PID: 9386 Comm: syz-executor051 Not tainted 5.5.0-rc2-next-20191220-syzkaller #0 [ 82.274730][ T9386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.284777][ T9386] RIP: 0010:nf_ct_netns_do_get+0xd2/0x7e0 [ 82.290487][ T9386] Code: 59 1c fb 45 84 f6 0f 84 5c 03 00 00 e8 27 58 1c fb 49 8d bc 24 a8 13 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9f 06 00 00 4d 8b b4 24 a8 13 00 00 e8 37 7d 08 [ 82.310176][ T9386] RSP: 0018:ffffc90001db77a8 EFLAGS: 00010202 [ 82.316230][ T9386] RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffffff865900d6 [ 82.324197][ T9386] RDX: 0000000000000275 RSI: ffffffff8658fd69 RDI: 00000000000013a8 [ 82.332155][ T9386] RBP: ffffc90001db77e8 R08: ffff8880a316a3c0 R09: ffffed1015d27074 [ 82.340113][ T9386] R10: ffffed1015d27073 R11: ffff8880ae93839b R12: 0000000000000000 [ 82.348150][ T9386] R13: 000000000000002a R14: 0000000000000001 R15: 0000000000000003 [ 82.356113][ T9386] FS: 0000000001715880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.365031][ T9386] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.371600][ T9386] CR2: 00000000200008a0 CR3: 00000000a4969000 CR4: 00000000001406e0 [ 82.379551][ T9386] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.387510][ T9386] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.395549][ T9386] Call Trace: [ 82.398834][ T9386] ? lock_downgrade+0x920/0x920 [ 82.403675][ T9386] nf_ct_netns_get+0x41/0x150 [ 82.408351][ T9386] connmark_tg_check+0x61/0xe0 [ 82.413108][ T9386] ? connmark_mt_destroy+0x80/0x80 [ 82.418205][ T9386] xt_check_target+0x283/0x690 [ 82.422962][ T9386] ? textify_hooks.constprop.0+0x1a0/0x1a0 [ 82.428768][ T9386] ? mutex_unlock+0xd/0x10 [ 82.433182][ T9386] ? xt_find_target+0x73/0x280 [ 82.437944][ T9386] ? xt_find_target+0x73/0x280 [ 82.442713][ T9386] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.448956][ T9386] translate_table+0x1005/0x1d70 [ 82.453897][ T9386] ? arpt_alloc_initial_table+0x690/0x690 [ 82.459730][ T9386] ? lock_downgrade+0x920/0x920 [ 82.464572][ T9386] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.470795][ T9386] ? _copy_from_user+0x12c/0x1a0 [ 82.475714][ T9386] do_arpt_set_ctl+0x310/0x640 [ 82.480470][ T9386] ? __do_replace+0xa80/0xa80 [ 82.485126][ T9386] ? __mutex_unlock_slowpath+0xf0/0x6a0 [ 82.490660][ T9386] ? ___might_sleep+0x163/0x2c0 [ 82.495491][ T9386] ? wait_for_completion+0x440/0x440 [ 82.500758][ T9386] ? mutex_unlock+0xd/0x10 [ 82.505169][ T9386] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 82.511142][ T9386] nf_setsockopt+0x77/0xd0 [ 82.515557][ T9386] ip_setsockopt+0xdf/0x100 [ 82.520091][ T9386] udp_setsockopt+0x68/0xb0 [ 82.524606][ T9386] sock_common_setsockopt+0x94/0xd0 [ 82.529800][ T9386] __sys_setsockopt+0x261/0x4c0 [ 82.534650][ T9386] ? sock_create_kern+0x50/0x50 [ 82.539482][ T9386] ? down_read_non_owner+0x490/0x490 [ 82.544763][ T9386] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 82.550982][ T9386] ? handle_mm_fault+0x4ab/0xa50 [ 82.555912][ T9386] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 82.561346][ T9386] ? do_syscall_64+0x26/0x790 [ 82.566012][ T9386] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.572056][ T9386] ? do_syscall_64+0x26/0x790 [ 82.576731][ T9386] __x64_sys_setsockopt+0xbe/0x150 [ 82.581830][ T9386] do_syscall_64+0xfa/0x790 [ 82.586331][ T9386] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.592214][ T9386] RIP: 0033:0x441369 [ 82.596161][ T9386] 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 [ 82.615898][ T9386] RSP: 002b:00007ffc21a84178 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 82.624312][ T9386] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000441369 [ 82.632274][ T9386] RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000003 [ 82.640224][ T9386] RBP: 00000000006cb018 R08: 0000000000000418 R09: 00000000004002c8 [ 82.648174][ T9386] R10: 0000000020000880 R11: 0000000000000246 R12: 0000000000402bf0 [ 82.656124][ T9386] R13: 0000000000402c80 R14: 0000000000000000 R15: 0000000000000000 [ 82.664077][ T9386] Modules linked in: [ 82.668441][ T9386] ---[ end trace 2b1d35b1a59cbb59 ]--- [ 82.673925][ T9386] RIP: 0010:nf_ct_netns_do_get+0xd2/0x7e0 [ 82.679646][ T9386] Code: 59 1c fb 45 84 f6 0f 84 5c 03 00 00 e8 27 58 1c fb 49 8d bc 24 a8 13 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9f 06 00 00 4d 8b b4 24 a8 13 00 00 e8 37 7d 08 [ 82.699292][ T9386] RSP: 0018:ffffc90001db77a8 EFLAGS: 00010202 [ 82.705392][ T9386] RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffffff865900d6 [ 82.713368][ T9386] RDX: 0000000000000275 RSI: ffffffff8658fd69 RDI: 00000000000013a8 [ 82.722882][ T9386] RBP: ffffc90001db77e8 R08: ffff8880a316a3c0 R09: ffffed1015d27074 [ 82.734437][ T9386] R10: ffffed1015d27073 R11: ffff8880ae93839b R12: 0000000000000000 [ 82.742398][ T9386] R13: 000000000000002a R14: 0000000000000001 R15: 0000000000000003 [ 82.750418][ T9386] FS: 0000000001715880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.759366][ T9386] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.765980][ T9386] CR2: 00000000200008a0 CR3: 00000000a4969000 CR4: 00000000001406e0 [ 82.775443][ T9386] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.783415][ T9386] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.791597][ T9386] Kernel panic - not syncing: Fatal exception [ 82.799065][ T9386] Kernel Offset: disabled [ 82.803527][ T9386] Rebooting in 86400 seconds..