[ 76.627991][ T27] audit: type=1400 audit(1577381408.824:37): avc: denied { watch } for pid=9904 comm="restorecond" path="/root/.ssh" dev="sda1" ino=16179 scontext=system_u:system_r:kernel_t:s0 tcontext=unconfined_u:object_r:ssh_home_t:s0 tclass=dir permissive=1 [ 76.658334][ T27] audit: type=1400 audit(1577381408.824:38): avc: denied { watch } for pid=9904 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2232 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 77.077031][ T27] audit: type=1800 audit(1577381409.274:39): pid=9815 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 77.099731][ T27] audit: type=1800 audit(1577381409.274:40): pid=9815 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 81.517653][ T27] audit: type=1400 audit(1577381413.714:41): avc: denied { map } for pid=9994 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts. executing program [ 88.197819][ T27] audit: type=1400 audit(1577381420.394:42): avc: denied { map } for pid=10006 comm="syz-executor134" path="/root/syz-executor134395069" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 88.201149][T10006] kasan: CONFIG_KASAN_INLINE enabled [ 88.230639][T10006] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 88.238912][T10006] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 88.245844][T10006] CPU: 0 PID: 10006 Comm: syz-executor134 Not tainted 5.5.0-rc3-syzkaller #0 [ 88.254575][T10006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.264617][T10006] RIP: 0010:xt_rateest_tg_checkentry+0x11d/0xb40 [ 88.270918][T10006] Code: d9 f2 0d fb 45 84 f6 0f 84 08 07 00 00 e8 8b f1 0d 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 f4 08 00 00 4d 8b ad 68 13 00 00 e8 cd 29 fa fa [ 88.290510][T10006] RSP: 0018:ffffc90001e37788 EFLAGS: 00010202 [ 88.296565][T10006] RAX: dffffc0000000000 RBX: ffffc90001e37ae8 RCX: ffffffff8667437e [ 88.304514][T10006] RDX: 000000000000026d RSI: ffffffff86673c65 RDI: 0000000000001368 [ 88.312467][T10006] RBP: ffffc90001e37848 R08: ffff8880a757c380 R09: ffffed1015d0703d [ 88.320415][T10006] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 88.328364][T10006] R13: 0000000000000000 R14: 0000000000000001 R15: ffffc90001e37820 [ 88.336314][T10006] FS: 0000000000e7f880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 88.345215][T10006] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.351769][T10006] CR2: 000055ba088c4130 CR3: 000000009f016000 CR4: 00000000001406f0 [ 88.359724][T10006] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.367685][T10006] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.375636][T10006] Call Trace: [ 88.378916][T10006] ? xt_rateest_lookup+0x270/0x270 [ 88.384056][T10006] ? __kasan_check_write+0x14/0x20 [ 88.389205][T10006] ? __mutex_unlock_slowpath+0xf0/0x6a0 [ 88.394748][T10006] ? xt_rateest_lookup+0x270/0x270 [ 88.399907][T10006] xt_check_target+0x283/0x690 [ 88.404666][T10006] ? textify_hooks.constprop.0+0x1a0/0x1a0 [ 88.410456][T10006] ? mutex_unlock+0xd/0x10 [ 88.414866][T10006] ? xt_find_target+0x73/0x280 [ 88.419612][T10006] ? xt_find_target+0x73/0x280 [ 88.424359][T10006] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 88.430588][T10006] translate_table+0x1005/0x1d70 [ 88.435590][T10006] ? arpt_alloc_initial_table+0x690/0x690 [ 88.441315][T10006] ? lock_downgrade+0x920/0x920 [ 88.446152][T10006] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 88.452371][T10006] ? _copy_from_user+0x12c/0x1a0 [ 88.457332][T10006] do_arpt_set_ctl+0x310/0x640 [ 88.462076][T10006] ? __do_replace+0xa80/0xa80 [ 88.466728][T10006] ? __mutex_unlock_slowpath+0xf0/0x6a0 [ 88.472279][T10006] ? mark_lock+0xc2/0x1220 [ 88.476685][T10006] ? wait_for_completion+0x440/0x440 [ 88.481951][T10006] ? mutex_unlock+0xd/0x10 [ 88.486375][T10006] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 88.492337][T10006] nf_setsockopt+0x77/0xd0 [ 88.496740][T10006] ip_setsockopt+0xdf/0x100 [ 88.501229][T10006] udp_setsockopt+0x68/0xb0 [ 88.505727][T10006] sock_common_setsockopt+0x94/0xd0 [ 88.510912][T10006] __sys_setsockopt+0x261/0x4c0 [ 88.515746][T10006] ? sock_create_kern+0x50/0x50 [ 88.520583][T10006] ? down_read_non_owner+0x490/0x490 [ 88.525866][T10006] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 88.532099][T10006] ? handle_mm_fault+0x4ab/0xa50 [ 88.537029][T10006] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 88.542478][T10006] ? do_syscall_64+0x26/0x790 [ 88.547199][T10006] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.553251][T10006] ? do_syscall_64+0x26/0x790 [ 88.557915][T10006] __x64_sys_setsockopt+0xbe/0x150 [ 88.563048][T10006] do_syscall_64+0xfa/0x790 [ 88.567540][T10006] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 88.573422][T10006] RIP: 0033:0x4414d9 [ 88.577329][T10006] 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 [ 88.596916][T10006] RSP: 002b:00007ffe2c66f4e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 88.605315][T10006] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004414d9 [ 88.613453][T10006] RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000003 [ 88.621461][T10006] RBP: 00000000006cb018 R08: 0000000000000530 R09: 00000000004002c8 [ 88.629419][T10006] R10: 0000000020000800 R11: 0000000000000246 R12: 0000000000402d60 [ 88.637366][T10006] R13: 0000000000402df0 R14: 0000000000000000 R15: 0000000000000000 [ 88.645318][T10006] Modules linked in: [ 88.649349][T10006] ---[ end trace 038b597fcf8ab6b8 ]--- [ 88.654834][T10006] RIP: 0010:xt_rateest_tg_checkentry+0x11d/0xb40 [ 88.661180][T10006] Code: d9 f2 0d fb 45 84 f6 0f 84 08 07 00 00 e8 8b f1 0d 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 f4 08 00 00 4d 8b ad 68 13 00 00 e8 cd 29 fa fa [ 88.680803][T10006] RSP: 0018:ffffc90001e37788 EFLAGS: 00010202 [ 88.686874][T10006] RAX: dffffc0000000000 RBX: ffffc90001e37ae8 RCX: ffffffff8667437e [ 88.694844][T10006] RDX: 000000000000026d RSI: ffffffff86673c65 RDI: 0000000000001368 [ 88.702862][T10006] RBP: ffffc90001e37848 R08: ffff8880a757c380 R09: ffffed1015d0703d [ 88.710859][T10006] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 000000000000002d [ 88.718857][T10006] R13: 0000000000000000 R14: 0000000000000001 R15: ffffc90001e37820 [ 88.726884][T10006] FS: 0000000000e7f880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 88.735789][T10006] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.742396][T10006] CR2: 000055ba088c4130 CR3: 000000009f016000 CR4: 00000000001406f0 [ 88.750395][T10006] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.758398][T10006] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.766389][T10006] Kernel panic - not syncing: Fatal exception [ 88.773589][T10006] Kernel Offset: disabled [ 88.777908][T10006] Rebooting in 86400 seconds..