[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [ 9.128976][ T22] audit: type=1400 audit(1580390719.077:10): avc: denied { watch } for pid=1802 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 [ 9.135497][ T22] audit: type=1400 audit(1580390719.077:11): avc: denied { watch } for pid=1802 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2280 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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 11.603219][ T22] audit: type=1400 audit(1580390721.547:12): avc: denied { map } for pid=1866 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 '10.128.0.30' (ECDSA) to the list of known hosts. executing program [ 17.679653][ T22] audit: type=1400 audit(1580390727.627:13): avc: denied { map } for pid=1878 comm="syz-executor408" path="/root/syz-executor408917966" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 17.697706][ T22] audit: type=1400 audit(1580390727.647:14): avc: denied { prog_load } for pid=1880 comm="syz-executor408" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 executing program [ 17.712076][ T22] audit: type=1400 audit(1580390727.657:15): avc: denied { prog_run } for pid=1880 comm="syz-executor408" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 17.736259][ T1881] BUG: unable to handle page fault for address: ffffed101a1413ff [ 17.743977][ T1881] #PF: supervisor read access in kernel mode [ 17.749929][ T1881] #PF: error_code(0x0000) - not-present page [ 17.755933][ T1881] PGD 21fff7067 P4D 21fff7067 PUD 21fff6067 PMD 0 [ 17.762425][ T1881] Oops: 0000 [#1] PREEMPT SMP KASAN [ 17.767664][ T1881] CPU: 0 PID: 1881 Comm: syz-executor408 Not tainted 5.4.16-syzkaller-01236-gcac5f7901828 #0 [ 17.777786][ T1881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.787938][ T1881] RIP: 0010:do_xdp_generic+0x603/0x1500 [ 17.793460][ T1881] Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 74 98 96 fe 4c 89 a4 24 d8 00 00 00 4c 89 ac 24 18 01 00 00 4c 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 ff e8 ae 97 96 fe 49 8b 37 83 e6 01 31 [ 17.813049][ T1881] RSP: 0018:ffff8881d0a5f680 EFLAGS: 00010a07 [ 17.819098][ T1881] RAX: 1ffff1101a1413ff RBX: ffff8881d0a5f788 RCX: 1ffff1103a14bef1 [ 17.827049][ T1881] RDX: ffff8881c403b7f4 RSI: 0000000000000000 RDI: ffff8881d0a5f798 [ 17.835109][ T1881] RBP: ffff8881d0a5f830 R08: ffffffff82da3c7b R09: ffffed103a13f45d [ 17.843112][ T1881] R10: ffffed103a13f45d R11: 0000000000000000 R12: ffff8880d09fa14a [ 17.851068][ T1881] R13: ffff8881d09fa000 R14: dffffc0000000000 R15: ffff8880d0a09fff [ 17.859152][ T1881] FS: 00000000022eb880(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 17.868233][ T1881] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.874792][ T1881] CR2: ffffed101a1413ff CR3: 00000001c4016001 CR4: 00000000001606f0 [ 17.882744][ T1881] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 17.890696][ T1881] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 17.898694][ T1881] Call Trace: [ 17.902010][ T1881] ? __kasan_check_write+0x14/0x20 [ 17.907096][ T1881] ? _copy_from_iter+0x886/0xaa0 [ 17.912018][ T1881] ? generic_xdp_tx+0x4f0/0x4f0 [ 17.916907][ T1881] ? tun_get_user+0x3d10/0x3d10 [ 17.921733][ T1881] tun_get_user+0x2498/0x3d10 [ 17.926508][ T1881] ? __kasan_check_read+0x11/0x20 [ 17.931523][ T1881] ? __alloc_pages_nodemask+0x52d/0x3010 [ 17.937274][ T1881] ? tun_do_read+0x1f10/0x1f10 [ 17.942024][ T1881] ? file_remove_privs+0x630/0x630 [ 17.947118][ T1881] ? pipe_write+0x1005/0x1220 [ 17.951776][ T1881] ? __rcu_read_lock+0x50/0x50 [ 17.956529][ T1881] ? __rcu_read_lock+0x50/0x50 [ 17.961276][ T1881] ? __memcg_kmem_charge_memcg+0x340/0x340 [ 17.967174][ T1881] tun_chr_write_iter+0x134/0x1c0 [ 17.972189][ T1881] do_iter_readv_writev+0x5fa/0x890 [ 17.977366][ T1881] ? vfs_dedupe_file_range+0xa00/0xa00 [ 17.982803][ T1881] ? security_file_permission+0x157/0x350 [ 17.988501][ T1881] ? rw_verify_area+0x1c2/0x360 [ 17.993335][ T1881] do_iter_write+0x180/0x590 [ 17.997901][ T1881] do_writev+0x2cd/0x560 [ 18.002118][ T1881] ? do_readv+0x400/0x400 [ 18.006426][ T1881] ? __up_read+0x6f/0x1b0 [ 18.010847][ T1881] ? __down_read+0x240/0x240 [ 18.015419][ T1881] ? do_user_addr_fault+0x6b7/0xb50 [ 18.020613][ T1881] __x64_sys_writev+0x7d/0x90 [ 18.025267][ T1881] do_syscall_64+0xc0/0x100 [ 18.029766][ T1881] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.035743][ T1881] RIP: 0033:0x441f30 [ 18.039610][ T1881] Code: 05 48 3d 01 f0 ff ff 0f 83 5d 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d e1 90 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 34 09 fc ff c3 48 83 ec 08 e8 ba 2b 00 00 [ 18.059230][ T1881] RSP: 002b:00007ffea09d0708 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 18.067650][ T1881] RAX: ffffffffffffffda RBX: 00007ffea09d0720 RCX: 0000000000441f30 [ 18.075610][ T1881] RDX: 0000000000000001 RSI: 00007ffea09d0750 RDI: 00000000000000f0 [ 18.083612][ T1881] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004 [ 18.091570][ T1881] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000004512 [ 18.099522][ T1881] R13: 0000000000402d80 R14: 0000000000000000 R15: 0000000000000000 [ 18.107480][ T1881] Modules linked in: [ 18.111360][ T1881] CR2: ffffed101a1413ff [ 18.115487][ T1881] ---[ end trace 146e2a5c2662476f ]--- [ 18.120928][ T1881] RIP: 0010:do_xdp_generic+0x603/0x1500 [ 18.126523][ T1881] Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 74 98 96 fe 4c 89 a4 24 d8 00 00 00 4c 89 ac 24 18 01 00 00 4c 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 08 4c 89 ff e8 ae 97 96 fe 49 8b 37 83 e6 01 31 [ 18.146123][ T1881] RSP: 0018:ffff8881d0a5f680 EFLAGS: 00010a07 [ 18.152291][ T1881] RAX: 1ffff1101a1413ff RBX: ffff8881d0a5f788 RCX: 1ffff1103a14bef1 [ 18.160289][ T1881] RDX: ffff8881c403b7f4 RSI: 0000000000000000 RDI: ffff8881d0a5f798 [ 18.168332][ T1881] RBP: ffff8881d0a5f830 R08: ffffffff82da3c7b R09: ffffed103a13f45d [ 18.176279][ T1881] R10: ffffed103a13f45d R11: 0000000000000000 R12: ffff8880d09fa14a [ 18.184245][ T1881] R13: ffff8881d09fa000 R14: dffffc0000000000 R15: ffff8880d0a09fff [ 18.192257][ T1881] FS: 00000000022eb880(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 18.201214][ T1881] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.207825][ T1881] CR2: ffffed101a1413ff CR3: 00000001c4016001 CR4: 00000000001606f0 [ 18.215796][ T1881] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.223791][ T1881] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.231946][ T1881] Kernel panic - not syncing: Fatal exception in interrupt [ 18.240145][ T1881] Kernel Offset: disabled [ 18.244478][ T1881] Rebooting in 86400 seconds..