[ 98.541630][ T27] audit: type=1800 audit(1579210444.521:36): pid=10235 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [ 99.281579][ T27] audit: type=1400 audit(1579210445.381:37): avc: denied { watch } for pid=10325 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 [....] 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 Warning: Permanently added '10.128.0.59' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 107.266586][ T27] kauditd_printk_skb: 4 callbacks suppressed [ 107.266602][ T27] audit: type=1400 audit(1579210453.361:42): avc: denied { map } for pid=10425 comm="syz-executor262" path="/root/syz-executor262278822" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 107.271694][T10425] kasan: CONFIG_KASAN_INLINE enabled [ 107.272649][ T27] audit: type=1400 audit(1579210453.371:43): avc: denied { create } for pid=10425 comm="syz-executor262" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 107.300543][T10425] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 107.309296][ T27] audit: type=1400 audit(1579210453.371:44): avc: denied { write } for pid=10425 comm="syz-executor262" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 [ 107.330577][T10425] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 107.370365][T10425] CPU: 0 PID: 10425 Comm: syz-executor262 Not tainted 5.5.0-rc6-syzkaller #0 [ 107.379107][T10425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.389149][T10425] RIP: 0010:nft_chain_parse_hook+0x386/0xa10 [ 107.395293][T10425] Code: e8 5f 27 0e fb 41 83 fd 05 0f 87 62 05 00 00 e8 d0 25 0e fb 49 8d 7c 24 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a6 05 00 00 44 89 e9 be 01 00 [ 107.414889][T10425] RSP: 0018:ffffc90001d07100 EFLAGS: 00010206 [ 107.420937][T10425] RAX: dffffc0000000000 RBX: ffffc90001d072b0 RCX: ffffffff8666cfa1 [ 107.429855][T10425] RDX: 0000000000000003 RSI: ffffffff8666cfb0 RDI: 0000000000000018 [ 107.437804][T10425] RBP: ffffc90001d071f0 R08: ffff8880a46f6140 R09: 0000000000000000 [ 107.445754][T10425] R10: fffff520003a0e2f R11: ffffc90001d0717f R12: 0000000000000000 [ 107.453703][T10425] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90001d071c8 [ 107.461653][T10425] FS: 0000000001a8c880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 107.470560][T10425] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 107.477119][T10425] CR2: 00005580e5f5b150 CR3: 000000008de5a000 CR4: 00000000001406f0 [ 107.485067][T10425] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 107.493031][T10425] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 107.500976][T10425] Call Trace: [ 107.504249][T10425] ? nf_tables_newset+0x2620/0x2620 [ 107.509426][T10425] ? nft_trans_rule_add+0x2d0/0x2d0 [ 107.514600][T10425] ? __kasan_check_read+0x11/0x20 [ 107.519614][T10425] nf_tables_addchain.constprop.0+0x1c1/0x1520 [ 107.525771][T10425] ? nft_chain_parse_hook+0xa10/0xa10 [ 107.531139][T10425] ? nla_strcmp+0xe3/0x120 [ 107.535548][T10425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.541775][T10425] ? nft_table_lookup+0x154/0x1b0 [ 107.546783][T10425] nf_tables_newchain+0x1033/0x1820 [ 107.551965][T10425] ? __mutex_lock+0x458/0x13c0 [ 107.556785][T10425] ? nf_tables_addchain.constprop.0+0x1520/0x1520 [ 107.563187][T10425] ? nla_memcpy+0xb0/0xb0 [ 107.567501][T10425] ? __nla_parse+0x43/0x60 [ 107.571904][T10425] nfnetlink_rcv_batch+0xf42/0x17a0 [ 107.577084][T10425] ? nf_tables_addchain.constprop.0+0x1520/0x1520 [ 107.583480][T10425] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 107.589277][T10425] ? selinux_sb_eat_lsm_opts+0x700/0x700 [ 107.594898][T10425] ? __nla_validate_parse+0x2d0/0x1ee0 [ 107.600334][T10425] ? selinux_capable+0x36/0x40 [ 107.605174][T10425] ? nla_memcpy+0xb0/0xb0 [ 107.609492][T10425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.615707][T10425] ? ns_capable_common+0x93/0x100 [ 107.620721][T10425] ? __nla_parse+0x43/0x60 [ 107.625199][T10425] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 107.630897][T10425] nfnetlink_rcv+0x3e7/0x460 [ 107.635466][T10425] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 107.641100][T10425] ? netlink_deliver_tap+0x24a/0xbe0 [ 107.647230][T10425] ? __kasan_check_write+0x14/0x20 [ 107.652317][T10425] netlink_unicast+0x58c/0x7d0 [ 107.657061][T10425] ? netlink_attachskb+0x870/0x870 [ 107.662160][T10425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.668382][T10425] netlink_sendmsg+0x91c/0xea0 [ 107.673124][T10425] ? netlink_unicast+0x7d0/0x7d0 [ 107.678040][T10425] ? tomoyo_socket_sendmsg+0x26/0x30 [ 107.683301][T10425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.689517][T10425] ? security_socket_sendmsg+0x8d/0xc0 [ 107.695054][T10425] ? netlink_unicast+0x7d0/0x7d0 [ 107.699983][T10425] sock_sendmsg+0xd7/0x130 [ 107.704383][T10425] ____sys_sendmsg+0x753/0x880 [ 107.709126][T10425] ? kernel_sendmsg+0x50/0x50 [ 107.713783][T10425] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 107.719918][T10425] ___sys_sendmsg+0x100/0x170 [ 107.724591][T10425] ? sendmsg_copy_msghdr+0x70/0x70 [ 107.729680][T10425] ? __kasan_check_read+0x11/0x20 [ 107.734679][T10425] ? __lock_acquire+0x8a0/0x4a00 [ 107.739594][T10425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.745810][T10425] ? __this_cpu_preempt_check+0x35/0x190 [ 107.751417][T10425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.757642][T10425] ? percpu_counter_add_batch+0x13c/0x190 [ 107.763337][T10425] ? __fd_install+0x1bc/0x640 [ 107.767996][T10425] ? find_held_lock+0x35/0x130 [ 107.772734][T10425] ? __fd_install+0x1bc/0x640 [ 107.777455][T10425] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.783822][T10425] ? __fget_light+0x1a9/0x230 [ 107.789325][T10425] ? __fdget+0x1b/0x20 [ 107.793386][T10425] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 107.799647][T10425] __sys_sendmsg+0x105/0x1d0 [ 107.804233][T10425] ? __sys_sendmsg_sock+0xc0/0xc0 [ 107.809256][T10425] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 107.814838][T10425] ? do_syscall_64+0x26/0x790 [ 107.819502][T10425] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 107.825630][T10425] ? do_syscall_64+0x26/0x790 [ 107.830300][T10425] __x64_sys_sendmsg+0x78/0xb0 [ 107.835063][T10425] do_syscall_64+0xfa/0x790 [ 107.839576][T10425] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 107.845460][T10425] RIP: 0033:0x440559 [ 107.849337][T10425] 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 [ 107.868962][T10425] RSP: 002b:00007ffe99bd0088 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 107.877442][T10425] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440559 [ 107.885569][T10425] RDX: 0000000004000000 RSI: 000000002000d400 RDI: 0000000000000004 [ 107.893532][T10425] RBP: 00000000006ca018 R08: 0000000000000003 R09: 00000000004002c8 [ 107.901555][T10425] R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000401de0 [ 107.909517][T10425] R13: 0000000000401e70 R14: 0000000000000000 R15: 0000000000000000 [ 107.917651][T10425] Modules linked in: [ 107.923261][T10425] ---[ end trace 178134b50b13c7e3 ]--- [ 107.928901][T10425] RIP: 0010:nft_chain_parse_hook+0x386/0xa10 [ 107.935777][T10425] Code: e8 5f 27 0e fb 41 83 fd 05 0f 87 62 05 00 00 e8 d0 25 0e fb 49 8d 7c 24 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a6 05 00 00 44 89 e9 be 01 00 [ 107.955946][T10425] RSP: 0018:ffffc90001d07100 EFLAGS: 00010206 [ 107.962070][T10425] RAX: dffffc0000000000 RBX: ffffc90001d072b0 RCX: ffffffff8666cfa1 [ 107.970065][T10425] RDX: 0000000000000003 RSI: ffffffff8666cfb0 RDI: 0000000000000018 [ 107.978248][T10425] RBP: ffffc90001d071f0 R08: ffff8880a46f6140 R09: 0000000000000000 [ 107.986243][T10425] R10: fffff520003a0e2f R11: ffffc90001d0717f R12: 0000000000000000 [ 107.994195][T10425] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90001d071c8 [ 108.002193][T10425] FS: 0000000001a8c880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 108.011139][T10425] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.017736][T10425] CR2: 00005580e5f5b150 CR3: 000000008de5a000 CR4: 00000000001406f0 [ 108.025702][T10425] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 108.033779][T10425] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 108.041827][T10425] Kernel panic - not syncing: Fatal exception [ 108.049238][T10425] Kernel Offset: disabled [ 108.053568][T10425] Rebooting in 86400 seconds..