[ 83.363972][ T27] audit: type=1800 audit(1578495026.089:25): pid=9415 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 83.384947][ T27] audit: type=1800 audit(1578495026.099:26): pid=9415 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 83.436307][ T27] audit: type=1800 audit(1578495026.099:27): pid=9415 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 83.969525][ T9482] sshd (9482) used greatest stack depth: 22888 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 100.493110][ T9572] kasan: CONFIG_KASAN_INLINE enabled [ 100.498752][ T9572] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 100.507015][ T9572] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 100.514142][ T9572] CPU: 0 PID: 9572 Comm: syz-executor353 Not tainted 5.5.0-rc5-syzkaller #0 [ 100.523830][ T9572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.533897][ T9572] RIP: 0010:hash_netport4_uadt+0x218/0xff0 [ 100.539691][ T9572] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4d 0a 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 4c [ 100.559462][ T9572] RSP: 0018:ffffc90001e07160 EFLAGS: 00010246 [ 100.565518][ T9572] RAX: dffffc0000000000 RBX: ffffc90001e07320 RCX: 0000000000000000 [ 100.573479][ T9572] RDX: 0000000000000000 RSI: ffffffff86811235 RDI: ffff8880a2572c30 [ 100.581551][ T9572] RBP: ffffc90001e072b8 R08: 0000000000000000 R09: 0000000000000000 [ 100.589506][ T9572] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 0000000000000000 [ 100.597475][ T9572] R13: 0000000004000000 R14: ffffc90001e07220 R15: 0000000000000002 [ 100.605428][ T9572] FS: 00000000009f1880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 100.614509][ T9572] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 100.621214][ T9572] CR2: 0000000020000f86 CR3: 00000000a939f000 CR4: 00000000001406f0 [ 100.629171][ T9572] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 100.637134][ T9572] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 100.645088][ T9572] Call Trace: [ 100.648377][ T9572] ? hash_netport6_test+0x1320/0x1320 [ 100.653821][ T9572] ? hash_netport6_kadt+0x740/0x740 [ 100.659364][ T9572] ? nla_memcpy+0xb0/0xb0 [ 100.664020][ T9572] ? ip_set_utest+0x4aa/0x890 [ 100.668722][ T9572] ? __kasan_check_read+0x11/0x20 [ 100.673906][ T9572] ip_set_utest+0x55b/0x890 [ 100.678411][ T9572] ? ip_set_put_byindex+0x490/0x490 [ 100.683678][ T9572] ? __mutex_lock+0x458/0x13c0 [ 100.688458][ T9572] ? ip_set_put_byindex+0x490/0x490 [ 100.694502][ T9572] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 100.699426][ T9572] ? nfnetlink_bind+0x2c0/0x2c0 [ 100.704256][ T9572] ? __kasan_check_read+0x11/0x20 [ 100.709271][ T9572] ? __lock_acquire+0x8a0/0x4a00 [ 100.714208][ T9572] ? save_stack+0x5c/0x90 [ 100.718538][ T9572] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.724962][ T9572] ? apparmor_capable+0x497/0x900 [ 100.730081][ T9572] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.736425][ T9572] ? __kasan_check_read+0x11/0x20 [ 100.741522][ T9572] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 100.746982][ T9572] netlink_rcv_skb+0x177/0x450 [ 100.751734][ T9572] ? nfnetlink_bind+0x2c0/0x2c0 [ 100.756572][ T9572] ? netlink_ack+0xb50/0xb50 [ 100.761429][ T9572] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.768743][ T9572] ? ns_capable_common+0x93/0x100 [ 100.773969][ T9572] ? ns_capable+0x20/0x30 [ 100.778493][ T9572] ? __netlink_ns_capable+0x104/0x140 [ 100.784018][ T9572] nfnetlink_rcv+0x1ba/0x460 [ 100.788607][ T9572] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 100.794046][ T9572] ? netlink_deliver_tap+0x24a/0xbe0 [ 100.799358][ T9572] ? __kasan_check_write+0x14/0x20 [ 100.804562][ T9572] netlink_unicast+0x58c/0x7d0 [ 100.810294][ T9572] ? netlink_attachskb+0x870/0x870 [ 100.815388][ T9572] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 100.821106][ T9572] ? __check_object_size+0x3d/0x437 [ 100.826306][ T9572] netlink_sendmsg+0x91c/0xea0 [ 100.831302][ T9572] ? netlink_unicast+0x7d0/0x7d0 [ 100.836244][ T9572] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 100.841786][ T9572] ? apparmor_socket_sendmsg+0x2a/0x30 [ 100.847230][ T9572] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.853538][ T9572] ? security_socket_sendmsg+0x8d/0xc0 [ 100.859054][ T9572] ? netlink_unicast+0x7d0/0x7d0 [ 100.864212][ T9572] sock_sendmsg+0xd7/0x130 [ 100.868631][ T9572] ____sys_sendmsg+0x753/0x880 [ 100.873398][ T9572] ? kernel_sendmsg+0x50/0x50 [ 100.878093][ T9572] ? lockdep_init_map+0x1be/0x6d0 [ 100.883107][ T9572] ___sys_sendmsg+0x100/0x170 [ 100.887822][ T9572] ? sendmsg_copy_msghdr+0x70/0x70 [ 100.893035][ T9572] ? __kasan_check_read+0x11/0x20 [ 100.898354][ T9572] ? __lock_acquire+0x8a0/0x4a00 [ 100.903551][ T9572] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.909781][ T9572] ? __this_cpu_preempt_check+0x35/0x190 [ 100.915486][ T9572] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.921832][ T9572] ? percpu_counter_add_batch+0x13c/0x190 [ 100.927643][ T9572] ? __fd_install+0x1bc/0x640 [ 100.932407][ T9572] ? find_held_lock+0x35/0x130 [ 100.937164][ T9572] ? __fd_install+0x1bc/0x640 [ 100.941831][ T9572] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.949789][ T9572] ? __fget_light+0x1a9/0x230 [ 100.954447][ T9572] ? __fdget+0x1b/0x20 [ 100.958512][ T9572] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 100.964737][ T9572] __sys_sendmsg+0x105/0x1d0 [ 100.969309][ T9572] ? __sys_sendmsg_sock+0xc0/0xc0 [ 100.974331][ T9572] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 100.980016][ T9572] ? do_syscall_64+0x26/0x790 [ 100.984951][ T9572] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.991458][ T9572] ? do_syscall_64+0x26/0x790 [ 100.996226][ T9572] __x64_sys_sendmsg+0x78/0xb0 [ 101.001457][ T9572] do_syscall_64+0xfa/0x790 [ 101.005946][ T9572] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.012042][ T9572] RIP: 0033:0x4405e9 [ 101.016021][ T9572] 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 [ 101.036339][ T9572] RSP: 002b:00007ffcae442dd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 101.044873][ T9572] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004405e9 [ 101.052949][ T9572] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 101.061165][ T9572] RBP: 00000000006ca018 R08: 0000000000000024 R09: 00000000004002c8 [ 101.069213][ T9572] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000401e70 [ 101.077441][ T9572] R13: 0000000000401f00 R14: 0000000000000000 R15: 0000000000000000 [ 101.085585][ T9572] Modules linked in: [ 101.089516][ T9572] ---[ end trace 4bcc1e50289416a6 ]--- [ 101.094979][ T9572] RIP: 0010:hash_netport4_uadt+0x218/0xff0 [ 101.100826][ T9572] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4d 0a 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 4c [ 101.120874][ T9572] RSP: 0018:ffffc90001e07160 EFLAGS: 00010246 [ 101.126982][ T9572] RAX: dffffc0000000000 RBX: ffffc90001e07320 RCX: 0000000000000000 [ 101.134963][ T9572] RDX: 0000000000000000 RSI: ffffffff86811235 RDI: ffff8880a2572c30 [ 101.143657][ T9572] RBP: ffffc90001e072b8 R08: 0000000000000000 R09: 0000000000000000 [ 101.152614][ T9572] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 0000000000000000 [ 101.160605][ T9572] R13: 0000000004000000 R14: ffffc90001e07220 R15: 0000000000000002 [ 101.168622][ T9572] FS: 00000000009f1880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 101.177769][ T9572] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.184543][ T9572] CR2: 0000000020000f86 CR3: 00000000a939f000 CR4: 00000000001406f0 [ 101.193353][ T9572] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.201448][ T9572] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 101.209452][ T9572] Kernel panic - not syncing: Fatal exception in interrupt [ 101.218332][ T9572] Kernel Offset: disabled [ 101.222765][ T9572] Rebooting in 86400 seconds..