[ 69.912375][ T27] audit: type=1800 audit(1578257869.033:25): pid=9221 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 69.950633][ T27] audit: type=1800 audit(1578257869.033:26): pid=9221 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 70.007022][ T27] audit: type=1800 audit(1578257869.043:27): pid=9221 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. [ 70.466664][ T9286] sshd (9286) used greatest stack depth: 22888 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 82.157942][ T9374] kasan: CONFIG_KASAN_INLINE enabled [ 82.163492][ T9374] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 82.171626][ T9374] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 82.178670][ T9374] CPU: 0 PID: 9374 Comm: syz-executor627 Not tainted 5.5.0-rc4-syzkaller #0 [ 82.187407][ T9374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.197587][ T9374] RIP: 0010:xt_rateest_tg_checkentry+0x11d/0xb40 [ 82.203957][ T9374] Code: e9 95 fd fa 45 84 f6 0f 84 08 07 00 00 e8 9b 94 fd fa 49 8d bd 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 f4 08 00 00 4d 8b ad a8 13 00 00 e8 8d cd e9 fa [ 82.223547][ T9374] RSP: 0018:ffffc90001d67788 EFLAGS: 00010202 [ 82.229596][ T9374] RAX: dffffc0000000000 RBX: ffffc90001d67ae8 RCX: ffffffff8677aa6e [ 82.237648][ T9374] RDX: 0000000000000275 RSI: ffffffff8677a355 RDI: 00000000000013a8 [ 82.245600][ T9374] RBP: ffffc90001d67848 R08: ffff8880a25ea500 R09: ffffed1015d0703d [ 82.253653][ T9374] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 82.261619][ T9374] R13: 0000000000000000 R14: 0000000000000001 R15: ffffc90001d67820 [ 82.269659][ T9374] FS: 0000000002117880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 82.278583][ T9374] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.285155][ T9374] CR2: 0000000020000920 CR3: 00000000a2e16000 CR4: 00000000001406f0 [ 82.293113][ T9374] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.301149][ T9374] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.309118][ T9374] Call Trace: [ 82.312393][ T9374] ? xt_rateest_lookup+0x270/0x270 [ 82.317484][ T9374] ? __kasan_check_write+0x14/0x20 [ 82.322578][ T9374] ? __mutex_unlock_slowpath+0xf0/0x6a0 [ 82.328118][ T9374] ? xt_rateest_lookup+0x270/0x270 [ 82.333221][ T9374] xt_check_target+0x283/0x690 [ 82.337978][ T9374] ? textify_hooks.constprop.0+0x1a0/0x1a0 [ 82.343763][ T9374] ? mutex_unlock+0xd/0x10 [ 82.348155][ T9374] ? xt_find_target+0x73/0x280 [ 82.352916][ T9374] ? xt_find_target+0x73/0x280 [ 82.357659][ T9374] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.363887][ T9374] translate_table+0x1005/0x1d70 [ 82.368805][ T9374] ? arpt_alloc_initial_table+0x690/0x690 [ 82.374525][ T9374] ? lock_downgrade+0x920/0x920 [ 82.379370][ T9374] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.385588][ T9374] ? _copy_from_user+0x12c/0x1a0 [ 82.393095][ T9374] do_arpt_set_ctl+0x310/0x640 [ 82.397861][ T9374] ? __do_replace+0xa80/0xa80 [ 82.402724][ T9374] ? __mutex_unlock_slowpath+0xf0/0x6a0 [ 82.408253][ T9374] ? ___might_sleep+0x163/0x2c0 [ 82.413209][ T9374] ? wait_for_completion+0x440/0x440 [ 82.418503][ T9374] ? mutex_unlock+0xd/0x10 [ 82.422987][ T9374] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 82.428948][ T9374] nf_setsockopt+0x77/0xd0 [ 82.433346][ T9374] ip_setsockopt+0xdf/0x100 [ 82.437827][ T9374] udp_setsockopt+0x68/0xb0 [ 82.442312][ T9374] sock_common_setsockopt+0x94/0xd0 [ 82.447599][ T9374] __sys_setsockopt+0x261/0x4c0 [ 82.452442][ T9374] ? sock_create_kern+0x50/0x50 [ 82.457531][ T9374] ? down_read_non_owner+0x490/0x490 [ 82.462810][ T9374] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 82.469042][ T9374] ? handle_mm_fault+0x4ab/0xa50 [ 82.473961][ T9374] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 82.479434][ T9374] ? do_syscall_64+0x26/0x790 [ 82.484106][ T9374] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.490188][ T9374] ? do_syscall_64+0x26/0x790 [ 82.494941][ T9374] __x64_sys_setsockopt+0xbe/0x150 [ 82.500066][ T9374] do_syscall_64+0xfa/0x790 [ 82.504554][ T9374] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.510425][ T9374] RIP: 0033:0x4412e9 [ 82.514311][ T9374] 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 [ 82.534342][ T9374] RSP: 002b:00007ffd1b6c6fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 82.542839][ T9374] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004412e9 [ 82.550796][ T9374] RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000003 [ 82.559459][ T9374] RBP: 00000000006cb018 R08: 0000000000000408 R09: 00000000004002c8 [ 82.567496][ T9374] R10: 0000000020000900 R11: 0000000000000246 R12: 0000000000402b70 [ 82.576586][ T9374] R13: 0000000000402c00 R14: 0000000000000000 R15: 0000000000000000 [ 82.584539][ T9374] Modules linked in: [ 82.588477][ T9374] ---[ end trace ddca07f1d387785a ]--- [ 82.593971][ T9374] RIP: 0010:xt_rateest_tg_checkentry+0x11d/0xb40 [ 82.600290][ T9374] Code: e9 95 fd fa 45 84 f6 0f 84 08 07 00 00 e8 9b 94 fd fa 49 8d bd 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 f4 08 00 00 4d 8b ad a8 13 00 00 e8 8d cd e9 fa [ 82.619970][ T9374] RSP: 0018:ffffc90001d67788 EFLAGS: 00010202 [ 82.626055][ T9374] RAX: dffffc0000000000 RBX: ffffc90001d67ae8 RCX: ffffffff8677aa6e [ 82.634172][ T9374] RDX: 0000000000000275 RSI: ffffffff8677a355 RDI: 00000000000013a8 [ 82.642169][ T9374] RBP: ffffc90001d67848 R08: ffff8880a25ea500 R09: ffffed1015d0703d [ 82.650143][ T9374] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 82.658298][ T9374] R13: 0000000000000000 R14: 0000000000000001 R15: ffffc90001d67820 [ 82.666298][ T9374] FS: 0000000002117880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 82.675324][ T9374] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.682897][ T9374] CR2: 0000000020000920 CR3: 00000000a2e16000 CR4: 00000000001406f0 [ 82.691008][ T9374] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.699156][ T9374] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.707252][ T9374] Kernel panic - not syncing: Fatal exception [ 82.714707][ T9374] Kernel Offset: disabled [ 82.719181][ T9374] Rebooting in 86400 seconds..