[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[ 8.528512][ T22] audit: type=1400 audit(1581630392.524:10): avc: denied { watch } for pid=1785 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 [ 8.537943][ T22] audit: type=1400 audit(1581630392.524:11): avc: denied { watch } for pid=1785 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 [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 12.519319][ T22] audit: type=1400 audit(1581630396.514:12): avc: denied { map } for pid=1865 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 '10.128.0.102' (ECDSA) to the list of known hosts. executing program [ 26.629484][ T22] audit: type=1400 audit(1581630410.624:13): avc: denied { map } for pid=1883 comm="syz-executor920" path="/root/syz-executor920696350" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 26.646613][ T22] audit: type=1400 audit(1581630410.644:14): avc: denied { prog_load } for pid=1884 comm="syz-executor920" 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 [ 26.662589][ T22] audit: type=1400 audit(1581630410.664:15): avc: denied { prog_run } for pid=1884 comm="syz-executor920" 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 [ 26.662789][ T1884] BUG: unable to handle page fault for address: ffffed101a15e7ff [ 26.693656][ T1884] #PF: supervisor read access in kernel mode [ 26.699671][ T1884] #PF: error_code(0x0000) - not-present page [ 26.705630][ T1884] PGD 21fff7067 P4D 21fff7067 PUD 21fff6067 PMD 0 [ 26.712171][ T1884] Oops: 0000 [#1] PREEMPT SMP KASAN [ 26.717356][ T1884] CPU: 0 PID: 1884 Comm: syz-executor920 Not tainted 5.4.19-syzkaller-00486-ga6e4656398da #0 [ 26.727484][ T1884] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.737676][ T1884] RIP: 0010:do_xdp_generic+0x603/0x1500 [ 26.743219][ T1884] Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 f4 e4 95 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 2e e4 95 fe 49 8b 37 83 e6 01 31 [ 26.762806][ T1884] RSP: 0018:ffff8881d0b4f680 EFLAGS: 00010a07 [ 26.768876][ T1884] RAX: 1ffff1101a15e7ff RBX: ffff8881d0b4f788 RCX: 1ffff1103a169ef1 [ 26.776837][ T1884] RDX: ffff8881c5ed97f4 RSI: 0000000000000000 RDI: ffff8881d0b4f798 [ 26.784796][ T1884] RBP: ffff8881d0b4f830 R08: ffffffff82db065b R09: ffffed103a15c85d [ 26.792867][ T1884] R10: ffffed103a15c85d R11: 0000000000000000 R12: ffff8880d0ae410e [ 26.800942][ T1884] R13: ffff8881d0ae4000 R14: dffffc0000000000 R15: ffff8880d0af3fff [ 26.809029][ T1884] FS: 0000000001a4b880(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 26.817944][ T1884] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.824534][ T1884] CR2: ffffed101a15e7ff CR3: 00000001d255f002 CR4: 00000000001606f0 [ 26.832491][ T1884] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.840456][ T1884] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.848411][ T1884] Call Trace: [ 26.851755][ T1884] ? __kasan_check_write+0x14/0x20 [ 26.856853][ T1884] ? _copy_from_iter+0x886/0xaa0 [ 26.861782][ T1884] ? generic_xdp_tx+0x4f0/0x4f0 [ 26.866608][ T1884] ? tun_get_user+0x3d10/0x3d10 [ 26.871543][ T1884] tun_get_user+0x2498/0x3d10 [ 26.876229][ T1884] ? tun_do_read+0x1f10/0x1f10 [ 26.880968][ T1884] ? netlink_detachskb+0x60/0x60 [ 26.885883][ T1884] ? put_pid+0x82/0xe0 [ 26.889924][ T1884] ? netlink_sendmsg+0xa28/0xd40 [ 26.894832][ T1884] ? __rcu_read_lock+0x50/0x50 [ 26.899566][ T1884] ? netlink_getsockopt+0x900/0x900 [ 26.904740][ T1884] tun_chr_write_iter+0x134/0x1c0 [ 26.909743][ T1884] do_iter_readv_writev+0x5fa/0x890 [ 26.914918][ T1884] ? vfs_dedupe_file_range+0xa00/0xa00 [ 26.920349][ T1884] ? security_file_permission+0x157/0x350 [ 26.926143][ T1884] ? rw_verify_area+0x1c2/0x360 [ 26.930965][ T1884] do_iter_write+0x180/0x590 [ 26.935530][ T1884] do_writev+0x2cd/0x560 [ 26.939742][ T1884] ? do_readv+0x400/0x400 [ 26.944045][ T1884] ? __up_read+0x6f/0x1b0 [ 26.948345][ T1884] ? __down_read+0x240/0x240 [ 26.952905][ T1884] ? __kasan_check_read+0x11/0x20 [ 26.957901][ T1884] __x64_sys_writev+0x7d/0x90 [ 26.962559][ T1884] do_syscall_64+0xc0/0x100 [ 26.967036][ T1884] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.972897][ T1884] RIP: 0033:0x4416b0 [ 26.976766][ T1884] Code: 05 48 3d 01 f0 ff ff 0f 83 fd 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 61 99 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 0e fc ff c3 48 83 ec 08 e8 7a 2b 00 00 [ 26.996348][ T1884] RSP: 002b:00007fffbde5b2c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 27.004732][ T1884] RAX: ffffffffffffffda RBX: 00007fffbde5b2e0 RCX: 00000000004416b0 [ 27.012682][ T1884] RDX: 0000000000000001 RSI: 00007fffbde5b310 RDI: 00000000000000f0 [ 27.020625][ T1884] RBP: 0000000000000003 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 27.028585][ T1884] R10: 00000000bb1414ac R11: 0000000000000246 R12: 0000000000000000 [ 27.036542][ T1884] R13: 0000000000402aa0 R14: 0000000000000000 R15: 0000000000000000 [ 27.044498][ T1884] Modules linked in: [ 27.048396][ T1884] CR2: ffffed101a15e7ff [ 27.052525][ T1884] ---[ end trace de6f642e78700856 ]--- [ 27.057960][ T1884] RIP: 0010:do_xdp_generic+0x603/0x1500 [ 27.063478][ T1884] Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 f4 e4 95 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 2e e4 95 fe 49 8b 37 83 e6 01 31 [ 27.083056][ T1884] RSP: 0018:ffff8881d0b4f680 EFLAGS: 00010a07 [ 27.089097][ T1884] RAX: 1ffff1101a15e7ff RBX: ffff8881d0b4f788 RCX: 1ffff1103a169ef1 [ 27.097184][ T1884] RDX: ffff8881c5ed97f4 RSI: 0000000000000000 RDI: ffff8881d0b4f798 [ 27.105136][ T1884] RBP: ffff8881d0b4f830 R08: ffffffff82db065b R09: ffffed103a15c85d [ 27.113114][ T1884] R10: ffffed103a15c85d R11: 0000000000000000 R12: ffff8880d0ae410e [ 27.121059][ T1884] R13: ffff8881d0ae4000 R14: dffffc0000000000 R15: ffff8880d0af3fff [ 27.129019][ T1884] FS: 0000000001a4b880(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 27.137931][ T1884] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.144499][ T1884] CR2: ffffed101a15e7ff CR3: 00000001d255f002 CR4: 00000000001606f0 [ 27.152446][ T1884] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.160392][ T1884] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.168339][ T1884] Kernel panic - not syncing: Fatal exception in interrupt [ 27.176245][ T1884] Kernel Offset: disabled [ 27.180555][ T1884] Rebooting in 86400 seconds..