[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] [ 8.719623][ T22] audit: type=1400 audit(1579478283.856:10): avc: denied { watch } for pid=1800 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 [ 8.724586][ T22] audit: type=1400 audit(1579478283.856:11): avc: denied { watch } for pid=1800 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: [ 12.309134][ T22] audit: type=1400 audit(1579478287.446:12): avc: denied { map } for pid=1863 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 '10.128.0.237' (ECDSA) to the list of known hosts. [ 31.127985][ T22] audit: type=1400 audit(1579478306.266:13): avc: denied { map } for pid=1887 comm="syz-executor626" path="/root/syz-executor626174908" 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 [ 31.240719][ T22] audit: type=1400 audit(1579478306.376:14): avc: denied { create } for pid=1897 comm="syz-executor626" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 31.282989][ T22] audit: type=1400 audit(1579478306.376:15): avc: denied { write } for pid=1897 comm="syz-executor626" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 31.318517][ T22] audit: type=1400 audit(1579478306.386:16): avc: denied { read } for pid=1897 comm="syz-executor626" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 executing program [ 34.671602][ T22] audit: type=1400 audit(1579478309.806:17): avc: denied { prog_load } for pid=4133 comm="syz-executor626" 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 [ 34.715515][ T22] audit: type=1400 audit(1579478309.846:18): avc: denied { prog_run } for pid=4133 comm="syz-executor626" 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 [ 34.742401][ T4134] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 34.754848][ T4134] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 34.830262][ T4200] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 34.839502][ T4200] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. executing program executing program executing program [ 34.921207][ T4242] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 34.930267][ T4242] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. executing program executing program [ 34.962856][ T4253] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 34.978407][ T4253] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 34.997841][ T4260] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 35.006802][ T4260] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 35.022774][ T4265] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 35.035927][ T4265] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 35.051931][ T4267] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 35.060416][ T4267] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 35.075738][ T4269] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 35.084392][ T4269] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 35.099685][ T4270] netlink: 'syz-executor626': attribute type 1 has an invalid length. executing program executing program executing program [ 35.108900][ T4270] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 35.125283][ T4271] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 35.136909][ T4271] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.754911][ T5391] validate_nla: 663 callbacks suppressed [ 39.754916][ T5391] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 39.770398][ T5391] net_ratelimit: 663 callbacks suppressed [ 39.770403][ T5391] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 39.791862][ T5390] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 39.801660][ T5390] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 39.818537][ T5393] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 39.828131][ T5393] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 39.844805][ T5396] netlink: 'syz-executor626': attribute type 1 has an invalid length. executing program executing program [ 39.853548][ T5396] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 39.869153][ T5394] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 39.878028][ T5394] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 39.893882][ T5398] netlink: 'syz-executor626': attribute type 1 has an invalid length. executing program [ 39.902467][ T5398] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 39.918921][ T5399] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 39.929915][ T5399] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 39.945414][ T5401] netlink: 'syz-executor626': attribute type 1 has an invalid length. executing program [ 39.955794][ T5401] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 39.966247][ T5401] netlink: 'syz-executor626': attribute type 1 has an invalid length. [ 39.976474][ T5401] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 39.984393][ T5403] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. executing program executing program [ 40.000122][ T5407] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 40.016584][ T5406] A link change request failed with some changes committed already. Interface lo may have been left with an inconsistent configuration, please check. [ 40.041164][ T5417] BUG: unable to handle page fault for address: ffffed101a2649ff [ 40.048869][ T5417] #PF: supervisor read access in kernel mode [ 40.054818][ T5417] #PF: error_code(0x0000) - not-present page [ 40.060767][ T5417] PGD 21fff7067 P4D 21fff7067 PUD 21fff6067 PMD 0 [ 40.067245][ T5417] Oops: 0000 [#1] PREEMPT SMP KASAN [ 40.072418][ T5417] CPU: 1 PID: 5417 Comm: syz-executor626 Not tainted 5.4.13-syzkaller-00760-gb0b02162a4b8 #0 [ 40.082534][ T5417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.092571][ T5417] RIP: 0010:do_xdp_generic+0x603/0x1500 [ 40.098090][ T5417] Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 c4 a7 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 fe a6 96 fe 49 8b 37 83 e6 01 31 [ 40.117666][ T5417] RSP: 0018:ffff8881c29f7680 EFLAGS: 00010a07 [ 40.123701][ T5417] RAX: 1ffff1101a2649ff RBX: ffff8881c29f7788 RCX: 1ffff1103853eef1 [ 40.131646][ T5417] RDX: ffff8881c5bbfcf4 RSI: 0000000000000000 RDI: ffff8881c29f7798 [ 40.139594][ T5417] RBP: ffff8881c29f7830 R08: ffffffff82da194b R09: ffffed103a262a5d [ 40.147539][ T5417] R10: ffffed103a262a5d R11: 0000000000000000 R12: ffff8880d131515e [ 40.155485][ T5417] R13: ffff8881d1315000 R14: dffffc0000000000 R15: ffff8880d1324fff [ 40.163445][ T5417] FS: 00007f306b9d4700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000 [ 40.172348][ T5417] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.178911][ T5417] CR2: ffffed101a2649ff CR3: 00000001d196b006 CR4: 00000000001606e0 [ 40.186861][ T5417] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.194808][ T5417] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.202752][ T5417] Call Trace: [ 40.206035][ T5417] ? __kasan_check_write+0x14/0x20 [ 40.211130][ T5417] ? _copy_from_iter+0x886/0xaa0 [ 40.216045][ T5417] ? generic_xdp_tx+0x4f0/0x4f0 [ 40.220870][ T5417] ? tun_get_user+0x3cd0/0x3cd0 [ 40.225694][ T5417] tun_get_user+0x2498/0x3cd0 [ 40.230358][ T5417] ? tun_do_read+0x1f10/0x1f10 [ 40.235096][ T5417] ? do_futex+0x245a/0x3f90 [ 40.239575][ T5417] ? put_pid+0x82/0xe0 [ 40.243618][ T5417] ? netlink_sendmsg+0xa28/0xd40 [ 40.248528][ T5417] ? __rcu_read_lock+0x50/0x50 [ 40.253260][ T5417] ? futex_exit_release+0xd0/0xd0 [ 40.258257][ T5417] tun_chr_write_iter+0x134/0x1c0 [ 40.263257][ T5417] do_iter_readv_writev+0x5fa/0x890 [ 40.268430][ T5417] ? vfs_dedupe_file_range+0xa00/0xa00 [ 40.273865][ T5417] ? security_file_permission+0x157/0x350 [ 40.279560][ T5417] ? rw_verify_area+0x1c2/0x360 [ 40.284384][ T5417] do_iter_write+0x180/0x590 [ 40.288950][ T5417] ? do_writev+0x9e/0x560 [ 40.293252][ T5417] do_writev+0x2cd/0x560 [ 40.297470][ T5417] ? do_readv+0x400/0x400 [ 40.301773][ T5417] ? __alloc_fd+0x4e6/0x590 [ 40.306251][ T5417] ? __kasan_check_write+0x14/0x20 [ 40.311344][ T5417] ? __fpregs_load_activate+0x2fc/0x3b0 [ 40.316864][ T5417] ? switch_fpu_return+0x10/0x10 [ 40.321773][ T5417] ? __kasan_check_read+0x11/0x20 [ 40.326768][ T5417] ? fput_many+0x47/0x1a0 [ 40.331069][ T5417] __x64_sys_writev+0x7d/0x90 [ 40.335719][ T5417] do_syscall_64+0xc0/0x100 [ 40.340315][ T5417] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.346196][ T5417] RIP: 0033:0x44d1c1 [ 40.350070][ T5417] Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 f4 06 fc ff c3 48 83 ec 08 e8 5a 2c 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 a3 2c 00 00 48 89 d0 48 83 c4 08 48 3d 01 [ 40.369669][ T5417] RSP: 002b:00007f306b9d3c50 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 [ 40.378054][ T5417] RAX: ffffffffffffffda RBX: 00000000006e9a08 RCX: 000000000044d1c1 [ 40.386000][ T5417] RDX: 0000000000000001 RSI: 00007f306b9d3c60 RDI: 00000000000000f0 [ 40.393949][ T5417] RBP: 00000000006e9a00 R08: 0000000000000000 R09: 0000000000000007 [ 40.401895][ T5417] R10: 00000000ffffd0e8 R11: 0000000000000293 R12: 00000000006e9a0c [ 40.409849][ T5417] R13: 00007ffe6e0eb89f R14: 00007f306b9d49c0 R15: 00000000006e9a0c [ 40.417803][ T5417] Modules linked in: [ 40.421671][ T5417] CR2: ffffed101a2649ff [ 40.425799][ T5417] ---[ end trace 4602a7ddfab9faca ]--- [ 40.431232][ T5417] RIP: 0010:do_xdp_generic+0x603/0x1500 [ 40.436765][ T5417] Code: 00 00 00 00 fc ff df 42 80 3c 30 00 74 05 e8 c4 a7 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 fe a6 96 fe 49 8b 37 83 e6 01 31 [ 40.456349][ T5417] RSP: 0018:ffff8881c29f7680 EFLAGS: 00010a07 [ 40.462404][ T5417] RAX: 1ffff1101a2649ff RBX: ffff8881c29f7788 RCX: 1ffff1103853eef1 [ 40.470348][ T5417] RDX: ffff8881c5bbfcf4 RSI: 0000000000000000 RDI: ffff8881c29f7798 [ 40.478296][ T5417] RBP: ffff8881c29f7830 R08: ffffffff82da194b R09: ffffed103a262a5d [ 40.486242][ T5417] R10: ffffed103a262a5d R11: 0000000000000000 R12: ffff8880d131515e [ 40.494282][ T5417] R13: ffff8881d1315000 R14: dffffc0000000000 R15: ffff8880d1324fff [ 40.502232][ T5417] FS: 00007f306b9d4700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000 [ 40.511142][ T5417] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.517707][ T5417] CR2: ffffed101a2649ff CR3: 00000001d196b006 CR4: 00000000001606e0 [ 40.525656][ T5417] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.533606][ T5417] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.541561][ T5417] Kernel panic - not syncing: Fatal exception in interrupt [ 40.549326][ T5417] Kernel Offset: disabled [ 40.553659][ T5417] Rebooting in 86400 seconds..