[ 78.919395][ T27] audit: type=1800 audit(1578708190.767:26): pid=9670 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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. [ 79.851576][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 79.851588][ T27] audit: type=1800 audit(1578708191.727:29): pid=9670 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 [ 79.877908][ T27] audit: type=1800 audit(1578708191.727:30): pid=9670 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 '10.128.0.41' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 90.726833][ T9822] kasan: CONFIG_KASAN_INLINE enabled [ 90.732769][ T9822] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 90.741296][ T9822] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 90.748640][ T9822] CPU: 0 PID: 9822 Comm: syz-executor930 Not tainted 5.5.0-rc5-syzkaller #0 [ 90.757919][ T9822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.768181][ T9822] RIP: 0010:xt_rateest_put+0xa1/0x440 [ 90.773554][ T9822] Code: 85 87 01 fb 45 84 f6 0f 84 68 02 00 00 e8 37 86 01 fb 49 8d bd 68 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 6c 03 00 00 4d 8b b5 68 13 00 00 e8 29 bf ed fa [ 90.793647][ T9822] RSP: 0018:ffffc90001d87940 EFLAGS: 00010202 [ 90.800016][ T9822] RAX: dffffc0000000000 RBX: ffff8880a7485500 RCX: ffffffff8673a332 [ 90.808171][ T9822] RDX: 000000000000026d RSI: ffffffff8673a0b9 RDI: 0000000000001368 [ 90.816925][ T9822] RBP: ffffc90001d87970 R08: ffff8880a885c300 R09: ffffed1015d0703d [ 90.825139][ T9822] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 90.833146][ T9822] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8673a470 [ 90.841290][ T9822] FS: 0000000001a5e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 90.850379][ T9822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.857092][ T9822] CR2: 00000000200008e0 CR3: 000000009ead4000 CR4: 00000000001406f0 [ 90.865539][ T9822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.874138][ T9822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.882497][ T9822] Call Trace: [ 90.886137][ T9822] ? xt_rateest_put+0x440/0x440 [ 90.891055][ T9822] xt_rateest_tg_destroy+0x72/0xa0 [ 90.896183][ T9822] ? xt_percpu_counter_free+0x8f/0xd0 [ 90.901562][ T9822] translate_table+0x11f4/0x1d80 [ 90.906509][ T9822] ? arpt_alloc_initial_table+0x690/0x690 [ 90.912226][ T9822] ? lock_downgrade+0x920/0x920 [ 90.917078][ T9822] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 90.923581][ T9822] ? _copy_from_user+0x12c/0x1a0 [ 90.928535][ T9822] do_arpt_set_ctl+0x317/0x650 [ 90.933302][ T9822] ? __do_replace+0xa80/0xa80 [ 90.937978][ T9822] ? __mutex_unlock_slowpath+0xf0/0x6a0 [ 90.943827][ T9822] ? ___might_sleep+0x163/0x2c0 [ 90.948671][ T9822] ? wait_for_completion+0x440/0x440 [ 90.954485][ T9822] ? mutex_unlock+0xd/0x10 [ 90.964553][ T9822] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 90.970698][ T9822] nf_setsockopt+0x77/0xd0 [ 90.975124][ T9822] ip_setsockopt+0xdf/0x100 [ 90.980161][ T9822] udp_setsockopt+0x68/0xb0 [ 90.984656][ T9822] sock_common_setsockopt+0x94/0xd0 [ 90.990591][ T9822] __sys_setsockopt+0x261/0x4c0 [ 90.995524][ T9822] ? sock_create_kern+0x50/0x50 [ 91.000376][ T9822] ? down_read_non_owner+0x490/0x490 [ 91.005660][ T9822] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 91.011901][ T9822] ? handle_mm_fault+0x4ab/0xa50 [ 91.016838][ T9822] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.022357][ T9822] ? do_syscall_64+0x26/0x790 [ 91.027112][ T9822] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.033179][ T9822] ? do_syscall_64+0x26/0x790 [ 91.038041][ T9822] __x64_sys_setsockopt+0xbe/0x150 [ 91.043421][ T9822] do_syscall_64+0xfa/0x790 [ 91.048313][ T9822] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.054394][ T9822] RIP: 0033:0x441699 [ 91.058410][ T9822] 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 [ 91.079188][ T9822] RSP: 002b:00007ffc1c089f68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 91.088368][ T9822] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000441699 [ 91.096866][ T9822] RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000003 [ 91.105645][ T9822] RBP: 00000000006cb018 R08: 0000000000000430 R09: 00000000004002c8 [ 91.114133][ T9822] R10: 00000000200008c0 R11: 0000000000000246 R12: 0000000000402f20 [ 91.122245][ T9822] R13: 0000000000402fb0 R14: 0000000000000000 R15: 0000000000000000 [ 91.130344][ T9822] Modules linked in: [ 91.134368][ T9822] ---[ end trace 753f105053e87e50 ]--- [ 91.139938][ T9822] RIP: 0010:xt_rateest_put+0xa1/0x440 [ 91.145658][ T9822] Code: 85 87 01 fb 45 84 f6 0f 84 68 02 00 00 e8 37 86 01 fb 49 8d bd 68 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 6c 03 00 00 4d 8b b5 68 13 00 00 e8 29 bf ed fa [ 91.165402][ T9822] RSP: 0018:ffffc90001d87940 EFLAGS: 00010202 [ 91.171677][ T9822] RAX: dffffc0000000000 RBX: ffff8880a7485500 RCX: ffffffff8673a332 [ 91.179897][ T9822] RDX: 000000000000026d RSI: ffffffff8673a0b9 RDI: 0000000000001368 [ 91.188731][ T9822] RBP: ffffc90001d87970 R08: ffff8880a885c300 R09: ffffed1015d0703d [ 91.197091][ T9822] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 91.205755][ T9822] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8673a470 [ 91.213784][ T9822] FS: 0000000001a5e880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 91.222998][ T9822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.230078][ T9822] CR2: 00000000200008e0 CR3: 000000009ead4000 CR4: 00000000001406f0 [ 91.238298][ T9822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.246655][ T9822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.254950][ T9822] Kernel panic - not syncing: Fatal exception [ 91.262996][ T9822] Kernel Offset: disabled [ 91.267622][ T9822] Rebooting in 86400 seconds..