[ 88.334492][ T27] audit: type=1800 audit(1578710593.485:27): pid=9632 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 88.377914][ T27] audit: type=1800 audit(1578710593.485:28): pid=9632 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. [ 89.223846][ T27] audit: type=1800 audit(1578710594.455:29): pid=9632 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 [ 89.244071][ T27] audit: type=1800 audit(1578710594.455:30): pid=9632 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 '10.128.0.55' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 99.355133][ T9785] kasan: CONFIG_KASAN_INLINE enabled [ 99.360899][ T9785] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 99.369059][ T9785] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 99.376011][ T9785] CPU: 0 PID: 9785 Comm: syz-executor031 Not tainted 5.5.0-rc5-syzkaller #0 [ 99.384671][ T9785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.394735][ T9785] RIP: 0010:xt_rateest_put+0xa1/0x440 [ 99.400102][ T9785] 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 [ 99.419704][ T9785] RSP: 0018:ffffc90001de7940 EFLAGS: 00010202 [ 99.425761][ T9785] RAX: dffffc0000000000 RBX: ffff8880a69a3200 RCX: ffffffff8673a332 [ 99.433725][ T9785] RDX: 000000000000026d RSI: ffffffff8673a0b9 RDI: 0000000000001368 [ 99.441675][ T9785] RBP: ffffc90001de7970 R08: ffff88809327a3c0 R09: ffffed1015d0703d [ 99.449628][ T9785] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 99.457593][ T9785] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8673a470 [ 99.465555][ T9785] FS: 0000000001efc880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 99.474470][ T9785] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.481028][ T9785] CR2: 00000000200008e0 CR3: 000000008ef27000 CR4: 00000000001406f0 [ 99.488980][ T9785] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.496942][ T9785] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.504906][ T9785] Call Trace: [ 99.508196][ T9785] ? xt_rateest_put+0x440/0x440 [ 99.513035][ T9785] xt_rateest_tg_destroy+0x72/0xa0 [ 99.518127][ T9785] ? xt_percpu_counter_free+0x8f/0xd0 [ 99.523493][ T9785] translate_table+0x11f4/0x1d80 [ 99.528424][ T9785] ? arpt_alloc_initial_table+0x690/0x690 [ 99.534125][ T9785] ? lock_downgrade+0x920/0x920 [ 99.538984][ T9785] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 99.545204][ T9785] ? _copy_from_user+0x12c/0x1a0 [ 99.551090][ T9785] do_arpt_set_ctl+0x317/0x650 [ 99.555836][ T9785] ? __do_replace+0xa80/0xa80 [ 99.560491][ T9785] ? __mutex_unlock_slowpath+0xf0/0x6a0 [ 99.566022][ T9785] ? ___might_sleep+0x163/0x2c0 [ 99.570869][ T9785] ? wait_for_completion+0x440/0x440 [ 99.576135][ T9785] ? mutex_unlock+0xd/0x10 [ 99.580531][ T9785] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 99.586545][ T9785] nf_setsockopt+0x77/0xd0 [ 99.590958][ T9785] ip_setsockopt+0xdf/0x100 [ 99.595464][ T9785] udp_setsockopt+0x68/0xb0 [ 99.599951][ T9785] sock_common_setsockopt+0x94/0xd0 [ 99.605132][ T9785] __sys_setsockopt+0x261/0x4c0 [ 99.609966][ T9785] ? sock_create_kern+0x50/0x50 [ 99.614800][ T9785] ? down_read_non_owner+0x490/0x490 [ 99.620071][ T9785] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 99.626298][ T9785] ? handle_mm_fault+0x4ab/0xa50 [ 99.631223][ T9785] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 99.636669][ T9785] ? do_syscall_64+0x26/0x790 [ 99.641336][ T9785] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.647381][ T9785] ? do_syscall_64+0x26/0x790 [ 99.652050][ T9785] __x64_sys_setsockopt+0xbe/0x150 [ 99.657246][ T9785] do_syscall_64+0xfa/0x790 [ 99.661729][ T9785] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 99.667597][ T9785] RIP: 0033:0x441699 [ 99.671473][ T9785] 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 [ 99.691125][ T9785] RSP: 002b:00007ffdd8803308 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 99.699524][ T9785] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000441699 [ 99.707480][ T9785] RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000003 [ 99.715440][ T9785] RBP: 00000000006cb018 R08: 0000000000000430 R09: 00000000004002c8 [ 99.723430][ T9785] R10: 00000000200008c0 R11: 0000000000000246 R12: 0000000000402f20 [ 99.731383][ T9785] R13: 0000000000402fb0 R14: 0000000000000000 R15: 0000000000000000 [ 99.739355][ T9785] Modules linked in: [ 99.743763][ T9785] ---[ end trace 29fdac70f77a5b33 ]--- [ 99.749258][ T9785] RIP: 0010:xt_rateest_put+0xa1/0x440 [ 99.754659][ T9785] 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 [ 99.774297][ T9785] RSP: 0018:ffffc90001de7940 EFLAGS: 00010202 [ 99.780358][ T9785] RAX: dffffc0000000000 RBX: ffff8880a69a3200 RCX: ffffffff8673a332 [ 99.788356][ T9785] RDX: 000000000000026d RSI: ffffffff8673a0b9 RDI: 0000000000001368 [ 99.796353][ T9785] RBP: ffffc90001de7970 R08: ffff88809327a3c0 R09: ffffed1015d0703d [ 99.804335][ T9785] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 99.812297][ T9785] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8673a470 [ 99.820313][ T9785] FS: 0000000001efc880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 99.829258][ T9785] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.835854][ T9785] CR2: 00000000200008e0 CR3: 000000008ef27000 CR4: 00000000001406f0 [ 99.843840][ T9785] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.851792][ T9785] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.859780][ T9785] Kernel panic - not syncing: Fatal exception [ 99.867133][ T9785] Kernel Offset: disabled [ 99.871459][ T9785] Rebooting in 86400 seconds..