[ 99.715315][ T28] audit: type=1800 audit(1579147645.311:36): pid=10544 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: [ 100.641650][ T28] audit: type=1400 audit(1579147646.321:37): avc: denied { watch } for pid=10634 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 OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.201' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 108.568088][ T28] kauditd_printk_skb: 4 callbacks suppressed [ 108.568104][ T28] audit: type=1400 audit(1579147654.241:42): avc: denied { map } for pid=10733 comm="syz-executor867" path="/root/syz-executor867880352" 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 [ 108.575962][T10733] netlink: 760 bytes leftover after parsing attributes in process `syz-executor867'. [ 108.601959][ T28] audit: type=1400 audit(1579147654.241:43): avc: denied { create } for pid=10733 comm="syz-executor867" 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 [ 108.636664][ T28] audit: type=1400 audit(1579147654.241:44): avc: denied { write } for pid=10733 comm="syz-executor867" 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 [ 108.670544][T10733] ------------[ cut here ]------------ [ 108.676021][T10733] truncated: 'nft-expr-0-LMMR~*{F DcHc(?V' (len 209) [ 108.676379][T10733] WARNING: CPU: 0 PID: 10733 at net/netfilter/nf_tables_api.c:588 nft_request_module+0x189/0x1a0 [ 108.696258][T10733] Kernel panic - not syncing: panic_on_warn set ... [ 108.702844][T10733] CPU: 0 PID: 10733 Comm: syz-executor867 Not tainted 5.5.0-rc6-syzkaller #0 [ 108.711585][T10733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.721643][T10733] Call Trace: [ 108.725003][T10733] dump_stack+0x197/0x210 [ 108.729334][T10733] ? nft_request_module+0x110/0x1a0 [ 108.734619][T10733] panic+0x2e3/0x75c [ 108.738584][T10733] ? add_taint.cold+0x16/0x16 [ 108.743260][T10733] ? __kasan_check_write+0x14/0x20 [ 108.748373][T10733] ? __warn.cold+0x14/0x3e [ 108.752786][T10733] ? __warn+0xd9/0x1cf [ 108.757030][T10733] ? nft_request_module+0x189/0x1a0 [ 108.762346][T10733] __warn.cold+0x2f/0x3e [ 108.766581][T10733] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 108.772366][T10733] ? nft_request_module+0x189/0x1a0 [ 108.777565][T10733] report_bug+0x289/0x300 [ 108.781958][T10733] do_error_trap+0x11b/0x200 [ 108.786558][T10733] do_invalid_op+0x37/0x50 [ 108.790962][T10733] ? nft_request_module+0x189/0x1a0 [ 108.796253][T10733] invalid_op+0x23/0x30 [ 108.800432][T10733] RIP: 0010:nft_request_module+0x189/0x1a0 [ 108.806248][T10733] Code: 00 75 2b 48 81 c4 10 01 00 00 5b 41 5c 41 5d 5d c3 e8 1b 6a 0e fb 44 89 ea 48 c7 c7 e0 7a dc 88 48 8d 74 24 60 e8 a6 19 df fa <0f> 0b eb 9a e8 7e 14 df fa 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 [ 108.825891][T10733] RSP: 0018:ffffc90001b37188 EFLAGS: 00010282 [ 108.831993][T10733] RAX: 0000000000000000 RBX: ffffffff8a4c62c0 RCX: 0000000000000000 [ 108.840008][T10733] RDX: 0000000000000000 RSI: ffffffff815e5396 RDI: fffff52000366e23 [ 108.847993][T10733] RBP: ffffc90001b372b0 R08: ffff8880a89d0000 R09: fffffbfff165e7b3 [ 108.855964][T10733] R10: fffffbfff165e7b2 R11: ffffffff8b2f3d97 R12: 1ffff92000366e31 [ 108.863966][T10733] R13: 00000000000000d1 R14: ffffffff8a4c62c0 R15: ffffc90001b373a0 [ 108.871962][T10733] ? vprintk_func+0x86/0x189 [ 108.876541][T10733] ? nft_request_module+0x189/0x1a0 [ 108.881790][T10733] ? __nf_tables_abort+0x2a50/0x2a50 [ 108.887075][T10733] ? __nla_validate_parse+0x2d0/0x1ee0 [ 108.892548][T10733] nft_expr_type_request_module+0x65/0xb0 [ 108.898317][T10733] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 108.904568][T10733] nf_tables_expr_parse+0x4e4/0x6b0 [ 108.909810][T10733] ? nft_expr_type_request_module+0xb0/0xb0 [ 108.915839][T10733] ? kasan_kmalloc+0x9/0x10 [ 108.920348][T10733] ? __kmalloc_node+0x4e/0x70 [ 108.925070][T10733] nf_tables_newrule+0x72b/0x2400 [ 108.930216][T10733] ? nf_tables_abort+0x30/0x30 [ 108.935009][T10733] ? nla_memcpy+0xb0/0xb0 [ 108.939420][T10733] ? __nla_parse+0x43/0x60 [ 108.944101][T10733] nfnetlink_rcv_batch+0xf42/0x17a0 [ 108.949325][T10733] ? nf_tables_abort+0x30/0x30 [ 108.954077][T10733] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 108.959997][T10733] ? selinux_sb_eat_lsm_opts+0x700/0x700 [ 108.965718][T10733] ? __nla_validate_parse+0x2d0/0x1ee0 [ 108.971208][T10733] ? selinux_capable+0x36/0x40 [ 108.975981][T10733] ? nla_memcpy+0xb0/0xb0 [ 108.980311][T10733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 108.986547][T10733] ? ns_capable_common+0x93/0x100 [ 108.991586][T10733] ? __nla_parse+0x43/0x60 [ 108.995997][T10733] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 109.001722][T10733] nfnetlink_rcv+0x3e7/0x460 [ 109.006340][T10733] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 109.011797][T10733] ? netlink_deliver_tap+0x24a/0xbe0 [ 109.017125][T10733] ? __kasan_check_write+0x14/0x20 [ 109.022278][T10733] netlink_unicast+0x58c/0x7d0 [ 109.027051][T10733] ? netlink_attachskb+0x870/0x870 [ 109.032194][T10733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 109.038522][T10733] netlink_sendmsg+0x91c/0xea0 [ 109.043308][T10733] ? netlink_unicast+0x7d0/0x7d0 [ 109.048337][T10733] ? tomoyo_socket_sendmsg+0x26/0x30 [ 109.053658][T10733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 109.059883][T10733] ? security_socket_sendmsg+0x8d/0xc0 [ 109.065398][T10733] ? netlink_unicast+0x7d0/0x7d0 [ 109.070492][T10733] sock_sendmsg+0xd7/0x130 [ 109.074915][T10733] ____sys_sendmsg+0x753/0x880 [ 109.079747][T10733] ? kernel_sendmsg+0x50/0x50 [ 109.084433][T10733] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 109.090590][T10733] ___sys_sendmsg+0x100/0x170 [ 109.095287][T10733] ? sendmsg_copy_msghdr+0x70/0x70 [ 109.100400][T10733] ? __kasan_check_read+0x11/0x20 [ 109.105447][T10733] ? __lock_acquire+0x8a0/0x4a00 [ 109.110391][T10733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 109.116652][T10733] ? __this_cpu_preempt_check+0x35/0x190 [ 109.122388][T10733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 109.129127][T10733] ? percpu_counter_add_batch+0x13c/0x190 [ 109.134853][T10733] ? __fd_install+0x1bc/0x640 [ 109.139596][T10733] ? find_held_lock+0x35/0x130 [ 109.144365][T10733] ? __fd_install+0x1bc/0x640 [ 109.149033][T10733] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 109.155282][T10733] ? __fget_light+0x1a9/0x230 [ 109.159981][T10733] ? __fdget+0x1b/0x20 [ 109.164056][T10733] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 109.170312][T10733] __sys_sendmsg+0x105/0x1d0 [ 109.174975][T10733] ? __sys_sendmsg_sock+0xc0/0xc0 [ 109.180006][T10733] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 109.185516][T10733] ? do_syscall_64+0x26/0x790 [ 109.190193][T10733] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 109.196265][T10733] ? do_syscall_64+0x26/0x790 [ 109.201061][T10733] __x64_sys_sendmsg+0x78/0xb0 [ 109.206176][T10733] do_syscall_64+0xfa/0x790 [ 109.210685][T10733] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 109.216576][T10733] RIP: 0033:0x440619 [ 109.220520][T10733] 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 [ 109.241994][T10733] RSP: 002b:00007ffdb09de728 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 109.250402][T10733] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440619 [ 109.258376][T10733] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005 [ 109.266400][T10733] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 109.274369][T10733] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401ea0 [ 109.282465][T10733] R13: 0000000000401f30 R14: 0000000000000000 R15: 0000000000000000 [ 109.292125][T10733] Kernel Offset: disabled [ 109.296529][T10733] Rebooting in 86400 seconds..