[ 93.601444][ T28] audit: type=1800 audit(1578562247.209:36): pid=10255 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: [ 94.345779][ T28] audit: type=1400 audit(1578562248.079:37): avc: denied { watch } for pid=10347 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 '10.128.0.121' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 103.364261][ T28] kauditd_printk_skb: 4 callbacks suppressed [ 103.364279][ T28] audit: type=1400 audit(1578562257.099:42): avc: denied { map } for pid=10443 comm="syz-executor905" path="/root/syz-executor905064356" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 103.369256][T10443] kasan: CONFIG_KASAN_INLINE enabled [ 103.373759][ T28] audit: type=1400 audit(1578562257.099:43): avc: denied { create } for pid=10443 comm="syz-executor905" 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 [ 103.397459][T10443] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 103.397478][T10443] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 103.397491][T10443] CPU: 1 PID: 10443 Comm: syz-executor905 Not tainted 5.5.0-rc5-syzkaller #0 [ 103.397498][T10443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.397525][T10443] RIP: 0010:hash_ipportnet4_uadt+0x20b/0x13e0 [ 103.404200][ T28] audit: type=1400 audit(1578562257.099:44): avc: denied { write } for pid=10443 comm="syz-executor905" 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 [ 103.427961][T10443] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 71 0c 00 00 4c 89 e2 45 8b 6d 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2c [ 103.427969][T10443] RSP: 0018:ffffc90001b9f150 EFLAGS: 00010246 [ 103.427979][T10443] RAX: dffffc0000000000 RBX: ffffc90001b9f320 RCX: 0000000000000000 [ 103.427985][T10443] RDX: 0000000000000000 RSI: ffffffff867e1e88 RDI: ffff8880a6e720a0 [ 103.427992][T10443] RBP: ffffc90001b9f2b8 R08: 0000000000000000 R09: 0000000000000000 [ 103.427998][T10443] R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: 0000000000000000 [ 103.428006][T10443] R13: 0000000004000000 R14: ffffc90001b9f220 R15: ffff8880a836e600 [ 103.428015][T10443] FS: 0000000002222880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 103.428023][T10443] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 103.428030][T10443] CR2: 000056182b61c150 CR3: 00000000a753b000 CR4: 00000000001406e0 [ 103.428041][T10443] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 103.428048][T10443] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 103.428051][T10443] Call Trace: [ 103.428070][T10443] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 103.428092][T10443] ? hash_ipportnet6_test+0x10c0/0x10c0 [ 103.615237][T10443] ? hash_ipportnet6_uadt+0xeb0/0xeb0 [ 103.620865][T10443] ? nla_memcpy+0xb0/0xb0 [ 103.625183][T10443] ? ip_set_utest+0x4aa/0x890 [ 103.629951][T10443] ? __kasan_check_read+0x11/0x20 [ 103.634971][T10443] ip_set_utest+0x55b/0x890 [ 103.639871][T10443] ? ip_set_put_byindex+0x490/0x490 [ 103.645226][T10443] ? __mutex_lock+0x458/0x13c0 [ 103.649991][T10443] ? ip_set_put_byindex+0x490/0x490 [ 103.655256][T10443] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 103.660185][T10443] ? nfnetlink_bind+0x2c0/0x2c0 [ 103.665025][T10443] ? avc_has_extended_perms+0x10f0/0x10f0 [ 103.670747][T10443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 103.677127][T10443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 103.683643][T10443] ? cred_has_capability+0x199/0x330 [ 103.688983][T10443] ? selinux_sb_eat_lsm_opts+0x700/0x700 [ 103.694598][T10443] ? selinux_sb_eat_lsm_opts+0x700/0x700 [ 103.700431][T10443] ? __check_heap_object+0x93/0xb3 [ 103.705555][T10443] ? __lock_acquire+0x8a0/0x4a00 [ 103.710486][T10443] netlink_rcv_skb+0x177/0x450 [ 103.715239][T10443] ? nfnetlink_bind+0x2c0/0x2c0 [ 103.720068][T10443] ? netlink_ack+0xb50/0xb50 [ 103.724729][T10443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 103.730949][T10443] ? ns_capable_common+0x93/0x100 [ 103.735968][T10443] ? ns_capable+0x20/0x30 [ 103.740287][T10443] ? __netlink_ns_capable+0x104/0x140 [ 103.745654][T10443] nfnetlink_rcv+0x1ba/0x460 [ 103.750227][T10443] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 103.755677][T10443] ? netlink_deliver_tap+0x24a/0xbe0 [ 103.761130][T10443] ? __kasan_check_write+0x14/0x20 [ 103.766318][T10443] netlink_unicast+0x58c/0x7d0 [ 103.771265][T10443] ? netlink_attachskb+0x870/0x870 [ 103.776364][T10443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 103.782604][T10443] netlink_sendmsg+0x91c/0xea0 [ 103.790141][T10443] ? netlink_unicast+0x7d0/0x7d0 [ 103.795059][T10443] ? tomoyo_socket_sendmsg+0x26/0x30 [ 103.800458][T10443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 103.806689][T10443] ? security_socket_sendmsg+0x8d/0xc0 [ 103.812131][T10443] ? netlink_unicast+0x7d0/0x7d0 [ 103.817062][T10443] sock_sendmsg+0xd7/0x130 [ 103.821466][T10443] ____sys_sendmsg+0x753/0x880 [ 103.826208][T10443] ? kernel_sendmsg+0x50/0x50 [ 103.830881][T10443] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 103.837018][T10443] ___sys_sendmsg+0x100/0x170 [ 103.841947][T10443] ? sendmsg_copy_msghdr+0x70/0x70 [ 103.847049][T10443] ? __kasan_check_read+0x11/0x20 [ 103.852057][T10443] ? __lock_acquire+0x8a0/0x4a00 [ 103.857010][T10443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 103.863254][T10443] ? __this_cpu_preempt_check+0x35/0x190 [ 103.868878][T10443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 103.875198][T10443] ? percpu_counter_add_batch+0x13c/0x190 [ 103.880899][T10443] ? __fd_install+0x1bc/0x640 [ 103.885552][T10443] ? find_held_lock+0x35/0x130 [ 103.890311][T10443] ? __fd_install+0x1bc/0x640 [ 103.894981][T10443] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 103.901214][T10443] ? __fget_light+0x1a9/0x230 [ 103.905945][T10443] ? __fdget+0x1b/0x20 [ 103.910043][T10443] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 103.916266][T10443] __sys_sendmsg+0x105/0x1d0 [ 103.920894][T10443] ? __sys_sendmsg_sock+0xc0/0xc0 [ 103.925959][T10443] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 103.931405][T10443] ? do_syscall_64+0x26/0x790 [ 103.936121][T10443] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 103.942164][T10443] ? do_syscall_64+0x26/0x790 [ 103.946941][T10443] __x64_sys_sendmsg+0x78/0xb0 [ 103.951750][T10443] do_syscall_64+0xfa/0x790 [ 103.956236][T10443] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 103.962106][T10443] RIP: 0033:0x440899 [ 103.966032][T10443] 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 [ 103.987075][T10443] RSP: 002b:00007ffed7d48f48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 103.996448][T10443] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440899 [ 104.004774][T10443] RDX: 000000000c0000c4 RSI: 0000000020000280 RDI: 0000000000000004 [ 104.012732][T10443] RBP: 00000000006ca018 R08: 0000000000000015 R09: 00000000004002c8 [ 104.020686][T10443] R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000402120 [ 104.028653][T10443] R13: 00000000004021b0 R14: 0000000000000000 R15: 0000000000000000 [ 104.036614][T10443] Modules linked in: [ 104.040543][T10443] ---[ end trace a37f28555bb7c406 ]--- [ 104.046013][T10443] RIP: 0010:hash_ipportnet4_uadt+0x20b/0x13e0 [ 104.052098][T10443] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 71 0c 00 00 4c 89 e2 45 8b 6d 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2c [ 104.071897][T10443] RSP: 0018:ffffc90001b9f150 EFLAGS: 00010246 [ 104.078148][T10443] RAX: dffffc0000000000 RBX: ffffc90001b9f320 RCX: 0000000000000000 [ 104.086116][T10443] RDX: 0000000000000000 RSI: ffffffff867e1e88 RDI: ffff8880a6e720a0 [ 104.094126][T10443] RBP: ffffc90001b9f2b8 R08: 0000000000000000 R09: 0000000000000000 [ 104.102406][T10443] R10: ffffed1015d2703c R11: ffff8880ae9381e3 R12: 0000000000000000 [ 104.110422][T10443] R13: 0000000004000000 R14: ffffc90001b9f220 R15: ffff8880a836e600 [ 104.118582][T10443] FS: 0000000002222880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 104.127506][T10443] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 104.134125][T10443] CR2: 000056182b61c150 CR3: 00000000a753b000 CR4: 00000000001406e0 [ 104.142116][T10443] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 104.150412][T10443] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 104.158408][T10443] Kernel panic - not syncing: Fatal exception in interrupt [ 104.167868][T10443] Kernel Offset: disabled [ 104.172400][T10443] Rebooting in 86400 seconds..