Warning: Permanently added '10.128.0.131' (ECDSA) to the list of known hosts. executing program [ 53.661269][ T8428] netlink: 4 bytes leftover after parsing attributes in process `syz-executor681'. [ 53.673426][ T8428] netlink: 4 bytes leftover after parsing attributes in process `syz-executor681'. [ 53.685289][ T8428] nbd: socks must be embedded in a SOCK_ITEM attr [ 53.701756][ T8428] [ 53.704874][ T8428] ====================================================== [ 53.712118][ T8428] WARNING: possible circular locking dependency detected [ 53.719484][ T8428] 5.13.0-syzkaller #0 Not tainted [ 53.724582][ T8428] ------------------------------------------------------ [ 53.732247][ T8428] syz-executor681/8428 is trying to acquire lock: [ 53.739182][ T8428] ffff88801f110d18 (&disk->open_mutex){+.+.}-{3:3}, at: del_gendisk+0x86/0x610 [ 53.748632][ T8428] [ 53.748632][ T8428] but task is already holding lock: [ 53.756346][ T8428] ffffffff8d67c148 (nbd_index_mutex){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x2e/0x100 [ 53.767105][ T8428] [ 53.767105][ T8428] which lock already depends on the new lock. [ 53.767105][ T8428] [ 53.778614][ T8428] [ 53.778614][ T8428] the existing dependency chain (in reverse order) is: [ 53.788605][ T8428] [ 53.788605][ T8428] -> #1 (nbd_index_mutex){+.+.}-{3:3}: [ 53.796453][ T8428] lock_acquire+0x182/0x4a0 [ 53.801692][ T8428] __mutex_lock_common+0x1ad/0x3770 [ 53.807980][ T8428] mutex_lock_nested+0x1a/0x20 [ 53.814163][ T8428] nbd_open+0x84/0xb10 [ 53.818937][ T8428] blkdev_get_whole+0x94/0x500 [ 53.824235][ T8428] blkdev_get_by_dev+0x339/0xdc0 [ 53.829688][ T8428] blkdev_open+0x132/0x2c0 [ 53.834716][ T8428] do_dentry_open+0x7cb/0x1010 [ 53.840012][ T8428] path_openat+0x28e6/0x39b0 [ 53.845418][ T8428] do_filp_open+0x221/0x460 [ 53.850485][ T8428] do_sys_openat2+0x124/0x460 [ 53.855819][ T8428] __x64_sys_open+0x221/0x270 [ 53.861306][ T8428] do_syscall_64+0x3d/0xb0 [ 53.866273][ T8428] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.872781][ T8428] [ 53.872781][ T8428] -> #0 (&disk->open_mutex){+.+.}-{3:3}: [ 53.880603][ T8428] check_prevs_add+0x4f9/0x5b30 [ 53.885980][ T8428] __lock_acquire+0x4476/0x6100 [ 53.891348][ T8428] lock_acquire+0x182/0x4a0 [ 53.896435][ T8428] __mutex_lock_common+0x1ad/0x3770 [ 53.902266][ T8428] mutex_lock_nested+0x1a/0x20 [ 53.907552][ T8428] del_gendisk+0x86/0x610 [ 53.912579][ T8428] nbd_put+0x8d/0x170 [ 53.917199][ T8428] nbd_genl_connect+0x17e7/0x1aa0 [ 53.922769][ T8428] genl_rcv_msg+0xfb4/0x13c0 [ 53.927942][ T8428] netlink_rcv_skb+0x1f0/0x460 [ 53.933515][ T8428] genl_rcv+0x24/0x40 [ 53.938134][ T8428] netlink_unicast+0x7de/0x9b0 [ 53.943744][ T8428] netlink_sendmsg+0xaa6/0xe90 [ 53.949064][ T8428] ____sys_sendmsg+0x5a2/0x900 [ 53.955141][ T8428] __sys_sendmsg+0x319/0x400 [ 53.961072][ T8428] do_syscall_64+0x3d/0xb0 [ 53.966007][ T8428] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.972512][ T8428] [ 53.972512][ T8428] other info that might help us debug this: [ 53.972512][ T8428] [ 53.983342][ T8428] Possible unsafe locking scenario: [ 53.983342][ T8428] [ 53.990790][ T8428] CPU0 CPU1 [ 53.996248][ T8428] ---- ---- [ 54.001724][ T8428] lock(nbd_index_mutex); [ 54.006252][ T8428] lock(&disk->open_mutex); [ 54.013363][ T8428] lock(nbd_index_mutex); [ 54.020587][ T8428] lock(&disk->open_mutex); [ 54.025170][ T8428] [ 54.025170][ T8428] *** DEADLOCK *** [ 54.025170][ T8428] [ 54.033493][ T8428] 3 locks held by syz-executor681/8428: [ 54.039273][ T8428] #0: ffffffff8df97230 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 [ 54.047608][ T8428] #1: ffffffff8df970e8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x125/0x13c0 [ 54.056915][ T8428] #2: ffffffff8d67c148 (nbd_index_mutex){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x2e/0x100 [ 54.067799][ T8428] [ 54.067799][ T8428] stack backtrace: [ 54.073768][ T8428] CPU: 0 PID: 8428 Comm: syz-executor681 Not tainted 5.13.0-syzkaller #0 [ 54.082367][ T8428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.092603][ T8428] Call Trace: [ 54.095888][ T8428] dump_stack_lvl+0x1ae/0x29f [ 54.101962][ T8428] ? show_regs_print_info+0x12/0x12 [ 54.107704][ T8428] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 54.113445][ T8428] ? save_trace+0x5a/0x9f0 [ 54.118285][ T8428] print_circular_bug+0xb17/0xdc0 [ 54.123973][ T8428] ? hlock_conflict+0x1f0/0x1f0 [ 54.128819][ T8428] ? __bfs+0x369/0x700 [ 54.132881][ T8428] ? check_path+0x40/0x40 [ 54.137222][ T8428] ? noop_count+0x30/0x30 [ 54.141988][ T8428] ? save_trace+0x5a/0x9f0 [ 54.147113][ T8428] check_noncircular+0x2cc/0x390 [ 54.152502][ T8428] ? add_chain_block+0x850/0x850 [ 54.157575][ T8428] check_prevs_add+0x4f9/0x5b30 [ 54.162525][ T8428] ? __bfs+0x700/0x700 [ 54.166595][ T8428] ? mark_lock+0x199/0x1eb0 [ 54.171108][ T8428] ? reacquire_held_locks+0x5f0/0x5f0 [ 54.176710][ T8428] ? __bfs+0x700/0x700 [ 54.181259][ T8428] ? reacquire_held_locks+0x5f0/0x5f0 [ 54.187764][ T8428] ? trace_lock_acquire+0x180/0x180 [ 54.193720][ T8428] ? reacquire_held_locks+0x5f0/0x5f0 [ 54.199356][ T8428] ? mark_lock+0x199/0x1eb0 [ 54.203890][ T8428] ? __lock_acquire+0x1385/0x6100 [ 54.209116][ T8428] ? lockdep_lock+0x102/0x2c0 [ 54.214162][ T8428] ? lockdep_unlock+0x145/0x2e0 [ 54.219542][ T8428] ? lockdep_lock+0x2c0/0x2c0 [ 54.225816][ T8428] ? __lock_acquire+0x44fa/0x6100 [ 54.230967][ T8428] ? trace_lock_acquire+0x180/0x180 [ 54.236339][ T8428] ? mark_lock+0x199/0x1eb0 [ 54.241693][ T8428] ? mark_lock+0x199/0x1eb0 [ 54.246230][ T8428] ? trace_lock_acquire+0x180/0x180 [ 54.251637][ T8428] ? __bfs+0x700/0x700 [ 54.255766][ T8428] ? mark_lock+0x199/0x1eb0 [ 54.261240][ T8428] ? __bfs+0x700/0x700 [ 54.265322][ T8428] ? stack_trace_save+0x1e0/0x1e0 [ 54.271859][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 54.278093][ T8428] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 54.284417][ T8428] ? lockdep_lock+0x102/0x2c0 [ 54.291347][ T8428] ? lockdep_count_forward_deps+0x240/0x240 [ 54.299311][ T8428] ? stack_depot_save+0x421/0x490 [ 54.304491][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 54.310159][ T8428] __lock_acquire+0x4476/0x6100 [ 54.315120][ T8428] ? trace_lock_acquire+0x180/0x180 [ 54.321104][ T8428] ? mark_lock+0x199/0x1eb0 [ 54.326150][ T8428] ? stack_trace_save+0x104/0x1e0 [ 54.331353][ T8428] ? __bfs+0x700/0x700 [ 54.335607][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 54.341434][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 54.347087][ T8428] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 54.353211][ T8428] ? kernfs_put+0x340/0x490 [ 54.357823][ T8428] ? __kobject_del+0xd4/0x310 [ 54.362506][ T8428] ? kobject_del+0x41/0x60 [ 54.367012][ T8428] ? blk_integrity_del+0x25/0x30 [ 54.372155][ T8428] ? del_gendisk+0x6d/0x610 [ 54.376809][ T8428] ? nbd_put+0x8d/0x170 [ 54.380975][ T8428] ? nbd_genl_connect+0x17e7/0x1aa0 [ 54.386170][ T8428] ? netlink_rcv_skb+0x1f0/0x460 [ 54.391152][ T8428] lock_acquire+0x182/0x4a0 [ 54.395679][ T8428] ? del_gendisk+0x86/0x610 [ 54.400281][ T8428] ? read_lock_is_recursive+0x10/0x10 [ 54.405935][ T8428] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 54.412028][ T8428] ? __might_sleep+0x100/0x100 [ 54.416842][ T8428] ? print_irqtrace_events+0x220/0x220 [ 54.422472][ T8428] ? kernfs_put+0x340/0x490 [ 54.427252][ T8428] __mutex_lock_common+0x1ad/0x3770 [ 54.432456][ T8428] ? del_gendisk+0x86/0x610 [ 54.436956][ T8428] ? slab_free_freelist_hook+0x1d8/0x290 [ 54.442788][ T8428] ? trace_kmem_cache_free+0x40/0xd0 [ 54.448089][ T8428] ? kmem_cache_free+0x112/0x170 [ 54.453073][ T8428] ? del_gendisk+0x86/0x610 [ 54.457680][ T8428] ? mutex_lock_io_nested+0x60/0x60 [ 54.463048][ T8428] ? kernfs_put+0x481/0x490 [ 54.467566][ T8428] ? kfree_const+0x26/0x40 [ 54.471983][ T8428] mutex_lock_nested+0x1a/0x20 [ 54.476739][ T8428] del_gendisk+0x86/0x610 [ 54.481068][ T8428] nbd_put+0x8d/0x170 [ 54.485031][ T8428] nbd_genl_connect+0x17e7/0x1aa0 [ 54.490049][ T8428] ? trace_raw_output_nbd_send_request+0xe0/0xe0 [ 54.496385][ T8428] ? genl_family_rcv_msg_attrs_parse+0xa1/0x290 [ 54.502646][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 54.508310][ T8428] ? __nla_parse+0x3c/0x50 [ 54.512720][ T8428] ? genl_family_rcv_msg_attrs_parse+0x1cd/0x290 [ 54.519834][ T8428] genl_rcv_msg+0xfb4/0x13c0 [ 54.524910][ T8428] ? genl_bind+0x360/0x360 [ 54.530519][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 54.537299][ T8428] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 54.543311][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 54.549914][ T8428] ? trace_raw_output_nbd_send_request+0xe0/0xe0 [ 54.556829][ T8428] netlink_rcv_skb+0x1f0/0x460 [ 54.561722][ T8428] ? genl_bind+0x360/0x360 [ 54.566172][ T8428] ? netlink_ack+0xb70/0xb70 [ 54.570753][ T8428] ? __down_read_common+0x1b0/0x450 [ 54.575930][ T8428] ? up_read_non_owner+0x1c0/0x1c0 [ 54.581024][ T8428] ? netlink_deliver_tap+0x130/0x840 [ 54.586289][ T8428] genl_rcv+0x24/0x40 [ 54.590258][ T8428] netlink_unicast+0x7de/0x9b0 [ 54.595016][ T8428] ? netlink_detachskb+0xa0/0xa0 [ 54.600043][ T8428] ? __virt_addr_valid+0x21b/0x2d0 [ 54.605185][ T8428] ? __phys_addr_symbol+0x2b/0x70 [ 54.610227][ T8428] ? __check_object_size+0x2f3/0x3f0 [ 54.615675][ T8428] ? bpf_lsm_netlink_send+0x5/0x10 [ 54.621133][ T8428] netlink_sendmsg+0xaa6/0xe90 [ 54.625982][ T8428] ? netlink_getsockopt+0xa60/0xa60 [ 54.631887][ T8428] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 54.638297][ T8428] ? security_socket_sendmsg+0x9d/0xb0 [ 54.643768][ T8428] ? netlink_getsockopt+0xa60/0xa60 [ 54.649163][ T8428] ____sys_sendmsg+0x5a2/0x900 [ 54.654260][ T8428] ? iovec_from_user+0x359/0x390 [ 54.659220][ T8428] ? __sys_sendmsg_sock+0x30/0x30 [ 54.664273][ T8428] __sys_sendmsg+0x319/0x400 [ 54.668861][ T8428] ? ____sys_sendmsg+0x900/0x900 [ 54.673806][ T8428] ? __context_tracking_exit+0x7a/0xd0 [ 54.679550][ T8428] ? __lock_acquire+0x6100/0x6100 [ 54.684762][ T8428] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 54.690860][ T8428] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 54.697591][ T8428] ? lockdep_hardirqs_on+0x8d/0x130 [ 54.702890][ T8428] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 54.709052][ T8428] do_syscall_64+0x3d/0xb0 [ 54.713630][ T8428] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 54.720481][ T8428] RIP: 0033:0x43fa29 [ 54.724481][ T8428] Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 54.745532][ T8428] RSP: 002b:00007ffdf3000888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.754215][ T8428] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043fa29 [ 54.762195][ T8428] RDX: 0000000000000000 RSI: 0000000020000b40 RDI: 0000000000000003 [ 54.770277][ T8428] RBP: 0000000000403490 R08: 0000000000000000 R09: 00000000004004a0 [ 54.778364][ T8428] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403520 [ 54.786804][ T8428] R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0 [ 54.810722][ T8428] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 54.822696][ T8428] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 54.831293][ T8428] CPU: 0 PID: 8428 Comm: syz-executor681 Not tainted 5.13.0-syzkaller #0 [ 54.839967][ T8428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.850468][ T8428] RIP: 0010:blk_mq_run_hw_queues+0x14f/0x430 [ 54.856479][ T8428] Code: 80 3c 08 00 74 08 48 89 ef e8 0d 0f dd fd 44 89 fb 48 c1 e3 02 48 03 5d 00 48 89 d8 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df <8a> 04 28 84 c0 0f 85 b7 02 00 00 8b 03 49 8d 1c c4 48 89 d8 48 c1 [ 54.876261][ T8428] RSP: 0018:ffffc90000f4f160 EFLAGS: 00010246 [ 54.882329][ T8428] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 [ 54.890299][ T8428] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88801f9f8048 [ 54.898375][ T8428] RBP: dffffc0000000000 R08: ffffffff83eb6412 R09: ffffed1003f3f129 [ 54.906396][ T8428] R10: ffffed1003f3f129 R11: 0000000000000000 R12: ffff8881462fcbb8 [ 54.914594][ T8428] R13: 0000000000000000 R14: ffff88801f9f8000 R15: 0000000000000000 [ 54.923361][ T8428] FS: 00000000023b3300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 54.932419][ T8428] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.939016][ T8428] CR2: 000055dc6ea4a928 CR3: 0000000028108000 CR4: 00000000001506f0 [ 54.946990][ T8428] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.955284][ T8428] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.963253][ T8428] Call Trace: [ 54.966523][ T8428] blk_cleanup_queue+0x9c/0x220 [ 54.971366][ T8428] blk_cleanup_disk+0x3b/0x80 [ 54.976029][ T8428] nbd_put+0x9d/0x170 [ 54.979991][ T8428] nbd_genl_connect+0x17e7/0x1aa0 [ 54.984999][ T8428] ? trace_raw_output_nbd_send_request+0xe0/0xe0 [ 54.991318][ T8428] ? genl_family_rcv_msg_attrs_parse+0xa1/0x290 [ 54.997549][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 55.003173][ T8428] ? __nla_parse+0x3c/0x50 [ 55.007580][ T8428] ? genl_family_rcv_msg_attrs_parse+0x1cd/0x290 [ 55.014073][ T8428] genl_rcv_msg+0xfb4/0x13c0 [ 55.018758][ T8428] ? genl_bind+0x360/0x360 [ 55.023189][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 55.028827][ T8428] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 55.034905][ T8428] ? rcu_read_lock_sched_held+0x87/0x110 [ 55.040650][ T8428] ? trace_raw_output_nbd_send_request+0xe0/0xe0 [ 55.047100][ T8428] netlink_rcv_skb+0x1f0/0x460 [ 55.051874][ T8428] ? genl_bind+0x360/0x360 [ 55.056565][ T8428] ? netlink_ack+0xb70/0xb70 [ 55.061330][ T8428] ? __down_read_common+0x1b0/0x450 [ 55.066706][ T8428] ? up_read_non_owner+0x1c0/0x1c0 [ 55.072158][ T8428] ? netlink_deliver_tap+0x130/0x840 [ 55.078022][ T8428] genl_rcv+0x24/0x40 [ 55.082024][ T8428] netlink_unicast+0x7de/0x9b0 [ 55.086862][ T8428] ? netlink_detachskb+0xa0/0xa0 [ 55.092171][ T8428] ? __virt_addr_valid+0x21b/0x2d0 [ 55.097376][ T8428] ? __phys_addr_symbol+0x2b/0x70 [ 55.102480][ T8428] ? __check_object_size+0x2f3/0x3f0 [ 55.107869][ T8428] ? bpf_lsm_netlink_send+0x5/0x10 [ 55.113321][ T8428] netlink_sendmsg+0xaa6/0xe90 [ 55.118100][ T8428] ? netlink_getsockopt+0xa60/0xa60 [ 55.123447][ T8428] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 55.129071][ T8428] ? security_socket_sendmsg+0x9d/0xb0 [ 55.135082][ T8428] ? netlink_getsockopt+0xa60/0xa60 [ 55.140296][ T8428] ____sys_sendmsg+0x5a2/0x900 [ 55.145143][ T8428] ? iovec_from_user+0x359/0x390 [ 55.150107][ T8428] ? __sys_sendmsg_sock+0x30/0x30 [ 55.155234][ T8428] __sys_sendmsg+0x319/0x400 [ 55.159842][ T8428] ? ____sys_sendmsg+0x900/0x900 [ 55.164775][ T8428] ? __context_tracking_exit+0x7a/0xd0 [ 55.170487][ T8428] ? __lock_acquire+0x6100/0x6100 [ 55.175542][ T8428] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 55.181522][ T8428] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 55.187961][ T8428] ? lockdep_hardirqs_on+0x8d/0x130 [ 55.193156][ T8428] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 55.199330][ T8428] do_syscall_64+0x3d/0xb0 [ 55.203951][ T8428] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.210351][ T8428] RIP: 0033:0x43fa29 [ 55.214240][ T8428] Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 55.234462][ T8428] RSP: 002b:00007ffdf3000888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.243573][ T8428] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043fa29 [ 55.252331][ T8428] RDX: 0000000000000000 RSI: 0000000020000b40 RDI: 0000000000000003 [ 55.260754][ T8428] RBP: 0000000000403490 R08: 0000000000000000 R09: 00000000004004a0 [ 55.269729][ T8428] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403520 [ 55.277834][ T8428] R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0 [ 55.286167][ T8428] Modules linked in: [ 55.293314][ T8428] ---[ end trace cbb5754f3f0ff674 ]--- [ 55.301680][ T8428] RIP: 0010:blk_mq_run_hw_queues+0x14f/0x430 [ 55.308227][ T8428] Code: 80 3c 08 00 74 08 48 89 ef e8 0d 0f dd fd 44 89 fb 48 c1 e3 02 48 03 5d 00 48 89 d8 48 c1 e8 03 48 bd 00 00 00 00 00 fc ff df <8a> 04 28 84 c0 0f 85 b7 02 00 00 8b 03 49 8d 1c c4 48 89 d8 48 c1 [ 55.329169][ T8428] RSP: 0018:ffffc90000f4f160 EFLAGS: 00010246 [ 55.337097][ T8428] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 [ 55.346449][ T8428] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88801f9f8048 [ 55.355599][ T8428] RBP: dffffc0000000000 R08: ffffffff83eb6412 R09: ffffed1003f3f129 [ 55.363973][ T8428] R10: ffffed1003f3f129 R11: 0000000000000000 R12: ffff8881462fcbb8 [ 55.372409][ T8428] R13: 0000000000000000 R14: ffff88801f9f8000 R15: 0000000000000000 [ 55.380746][ T8428] FS: 00000000023b3300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 55.390876][ T8428] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.397881][ T8428] CR2: 00007fcea2a53000 CR3: 0000000028108000 CR4: 00000000001506e0 [ 55.406178][ T8428] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.414390][ T8428] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.422611][ T8428] Kernel panic - not syncing: Fatal exception [ 55.430901][ T8428] Kernel Offset: disabled [ 55.435737][ T8428] Rebooting in 86400 seconds..