===================================================== WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected 6.8.0-syzkaller-05236-g443574b03387 #0 Not tainted ----------------------------------------------------- syz-fuzzer/5094 [HC0[0]:SC0[2]:HE0:SE0] is trying to acquire: ffff888029077b68 (&htab->buckets[i].lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] ffff888029077b68 (&htab->buckets[i].lock){+.-.}-{2:2}, at: sock_hash_delete_elem+0xb0/0x300 net/core/sock_map.c:939 and this task is already holding: ffff88801b3d2e58 (&sighand->siglock){-.-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline] ffff88801b3d2e58 (&sighand->siglock){-.-.}-{2:2}, at: get_signal+0x247/0x1850 kernel/signal.c:2699 which would create a new lock dependency: (&sighand->siglock){-.-.}-{2:2} -> (&htab->buckets[i].lock){+.-.}-{2:2} but this new dependency connects a HARDIRQ-irq-safe lock: (&sighand->siglock){-.-.}-{2:2} ... which became HARDIRQ-irq-safe at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 __lock_task_sighand+0x149/0x2e0 kernel/signal.c:1414 lock_task_sighand include/linux/sched/signal.h:746 [inline] do_send_sig_info kernel/signal.c:1300 [inline] group_send_sig_info+0x274/0x310 kernel/signal.c:1453 do_bpf_send_signal+0x85/0x190 kernel/trace/bpf_trace.c:838 irq_work_single+0xe2/0x240 kernel/irq_work.c:221 irq_work_run_list kernel/irq_work.c:252 [inline] irq_work_run+0x18b/0x350 kernel/irq_work.c:261 __sysvec_irq_work+0xa8/0x3e0 arch/x86/kernel/irq_work.c:22 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x9e/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] trie_update_elem+0x28e/0xc10 kernel/bpf/lpm_trie.c:431 bpf_map_update_value+0x4d3/0x540 kernel/bpf/syscall.c:203 map_update_elem+0x53a/0x6f0 kernel/bpf/syscall.c:1641 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5619 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 to a HARDIRQ-irq-unsafe lock: (&htab->buckets[i].lock){+.-.}-{2:2} ... which became HARDIRQ-irq-unsafe at: ... lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] sock_hash_update_common+0x20c/0xa30 net/core/sock_map.c:1007 sock_map_update_elem_sys+0x5a4/0x910 net/core/sock_map.c:581 map_update_elem+0x53a/0x6f0 kernel/bpf/syscall.c:1641 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5619 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&htab->buckets[i].lock); local_irq_disable(); lock(&sighand->siglock); lock(&htab->buckets[i].lock); lock(&sighand->siglock); *** DEADLOCK *** 2 locks held by syz-fuzzer/5094: #0: ffff88801b3d2e58 (&sighand->siglock){-.-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline] #0: ffff88801b3d2e58 (&sighand->siglock){-.-.}-{2:2}, at: get_signal+0x247/0x1850 kernel/signal.c:2699 #1: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #1: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #1: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline] #1: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run3+0x14a/0x460 kernel/trace/bpf_trace.c:2421 the dependencies between HARDIRQ-irq-safe lock and the holding lock: -> (&sighand->siglock){-.-.}-{2:2} { IN-HARDIRQ-W at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 __lock_task_sighand+0x149/0x2e0 kernel/signal.c:1414 lock_task_sighand include/linux/sched/signal.h:746 [inline] do_send_sig_info kernel/signal.c:1300 [inline] group_send_sig_info+0x274/0x310 kernel/signal.c:1453 do_bpf_send_signal+0x85/0x190 kernel/trace/bpf_trace.c:838 irq_work_single+0xe2/0x240 kernel/irq_work.c:221 irq_work_run_list kernel/irq_work.c:252 [inline] irq_work_run+0x18b/0x350 kernel/irq_work.c:261 __sysvec_irq_work+0xa8/0x3e0 arch/x86/kernel/irq_work.c:22 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x9e/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] trie_update_elem+0x28e/0xc10 kernel/bpf/lpm_trie.c:431 bpf_map_update_value+0x4d3/0x540 kernel/bpf/syscall.c:203 map_update_elem+0x53a/0x6f0 kernel/bpf/syscall.c:1641 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5619 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 IN-SOFTIRQ-W at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 __lock_task_sighand+0x149/0x2e0 kernel/signal.c:1414 lock_task_sighand include/linux/sched/signal.h:746 [inline] do_send_sig_info kernel/signal.c:1300 [inline] group_send_sig_info+0x274/0x310 kernel/signal.c:1453 bpf_send_signal_common+0x2dd/0x430 kernel/trace/bpf_trace.c:881 ____bpf_send_signal_thread kernel/trace/bpf_trace.c:898 [inline] bpf_send_signal_thread+0x16/0x20 kernel/trace/bpf_trace.c:896 0xffffffffa0000976 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:650 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run4+0x3d7/0x490 kernel/trace/bpf_trace.c:2422 trace_mm_page_alloc include/trace/events/kmem.h:177 [inline] __alloc_pages+0x657/0x680 mm/page_alloc.c:4591 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node+0x12b/0x1b0 include/linux/gfp.h:261 page_frag_alloc_1k net/core/skbuff.c:250 [inline] __napi_alloc_skb+0x37f/0x540 net/core/skbuff.c:834 napi_alloc_skb include/linux/skbuff.h:3363 [inline] page_to_skb+0x275/0x9b0 drivers/net/virtio_net.c:569 receive_mergeable drivers/net/virtio_net.c:1683 [inline] receive_buf+0x3b3/0x3890 drivers/net/virtio_net.c:1804 virtnet_receive drivers/net/virtio_net.c:2110 [inline] virtnet_poll+0x720/0x18f0 drivers/net/virtio_net.c:2203 __napi_poll+0xcb/0x490 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x7bb/0x1090 net/core/dev.c:6813 __do_softirq+0x2bc/0x943 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 spin_unlock_bh include/linux/spinlock.h:396 [inline] nf_conntrack_tcp_packet+0x23ff/0x57f0 net/netfilter/nf_conntrack_proto_tcp.c:1294 nf_conntrack_handle_packet net/netfilter/nf_conntrack_core.c:1923 [inline] nf_conntrack_in+0x995/0x1880 net/netfilter/nf_conntrack_core.c:2013 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269 __ip_local_out+0x3d9/0x4e0 net/ipv4/ip_output.c:118 ip_local_out net/ipv4/ip_output.c:127 [inline] __ip_queue_xmit+0x1162/0x1b70 net/ipv4/ip_output.c:535 __tcp_transmit_skb+0x2557/0x3b80 net/ipv4/tcp_output.c:1462 tcp_transmit_skb net/ipv4/tcp_output.c:1480 [inline] tcp_write_xmit+0x1445/0x6100 net/ipv4/tcp_output.c:2792 __tcp_push_pending_frames+0x9b/0x360 net/ipv4/tcp_output.c:2977 tcp_sendmsg_locked+0x42cc/0x4d00 net/ipv4/tcp.c:1310 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1342 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 sock_write_iter+0x2dd/0x400 net/socket.c:1160 call_write_iter include/linux/fs.h:2108 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa84/0xcb0 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 INITIAL USE at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170 spin_lock_irq include/linux/spinlock.h:376 [inline] calculate_sigpending+0x4f/0x90 kernel/signal.c:188 ret_from_fork+0x24/0x80 arch/x86/kernel/process.c:143 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 } ... key at: [] sighand_ctor.__key+0x0/0x20 the dependencies between the lock to be acquired and HARDIRQ-irq-unsafe lock: -> (&htab->buckets[i].lock){+.-.}-{2:2} { HARDIRQ-ON-W at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] sock_hash_update_common+0x20c/0xa30 net/core/sock_map.c:1007 sock_map_update_elem_sys+0x5a4/0x910 net/core/sock_map.c:581 map_update_elem+0x53a/0x6f0 kernel/bpf/syscall.c:1641 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5619 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 IN-SOFTIRQ-W at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] sock_hash_delete_elem+0xb0/0x300 net/core/sock_map.c:939 bpf_prog_bc4ba9860fbb0da4+0x46/0x4a bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x238/0x460 kernel/trace/bpf_trace.c:2421 trace_kmem_cache_free include/trace/events/kmem.h:114 [inline] kmem_cache_free+0x23c/0x2a0 mm/slub.c:4362 skb_kfree_head net/core/skbuff.c:1094 [inline] skb_free_head net/core/skbuff.c:1108 [inline] skb_release_data+0x556/0x870 net/core/skbuff.c:1136 skb_release_all net/core/skbuff.c:1202 [inline] __kfree_skb+0x57/0x70 net/core/skbuff.c:1216 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3375 [inline] tcp_ack+0x2420/0x6b60 net/ipv4/tcp_input.c:3967 tcp_rcv_established+0x1076/0x1fd0 net/ipv4/tcp_input.c:6079 tcp_v4_do_rcv+0x8da/0xb90 net/ipv4/tcp_ipv4.c:1906 tcp_v4_rcv+0x2e59/0x3780 net/ipv4/tcp_ipv4.c:2332 ip_protocol_deliver_rcu+0x225/0x430 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x33f/0x5f0 net/ipv4/ip_input.c:233 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 ip_local_deliver net/ipv4/ip_input.c:254 [inline] dst_input include/net/dst.h:460 [inline] ip_sublist_rcv_finish+0x3be/0x4f0 net/ipv4/ip_input.c:580 ip_list_rcv_finish net/ipv4/ip_input.c:631 [inline] ip_sublist_rcv+0x75d/0xab0 net/ipv4/ip_input.c:639 ip_list_rcv+0x42b/0x480 net/ipv4/ip_input.c:674 __netif_receive_skb_list_ptype net/core/dev.c:5581 [inline] __netif_receive_skb_list_core+0x95a/0x980 net/core/dev.c:5629 __netif_receive_skb_list net/core/dev.c:5681 [inline] netif_receive_skb_list_internal+0xa62/0xe70 net/core/dev.c:5773 gro_normal_list include/net/gro.h:438 [inline] napi_complete_done+0x310/0x8e0 net/core/dev.c:6113 virtqueue_napi_complete drivers/net/virtio_net.c:465 [inline] virtnet_poll+0xd91/0x18f0 drivers/net/virtio_net.c:2211 __napi_poll+0xcb/0x490 net/core/dev.c:6632 napi_poll net/core/dev.c:6701 [inline] net_rx_action+0x7bb/0x1090 net/core/dev.c:6813 __do_softirq+0x2bc/0x943 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 sctp_close+0xdb/0x920 net/sctp/socket.c:1493 inet_release+0x17d/0x200 net/ipv4/af_inet.c:437 __sock_release net/socket.c:659 [inline] sock_close+0xbc/0x240 net/socket.c:1421 __fput+0x429/0x8a0 fs/file_table.c:423 __do_sys_close fs/open.c:1557 [inline] __se_sys_close fs/open.c:1542 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1542 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 INITIAL USE at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] sock_hash_update_common+0x20c/0xa30 net/core/sock_map.c:1007 sock_map_update_elem_sys+0x5a4/0x910 net/core/sock_map.c:581 map_update_elem+0x53a/0x6f0 kernel/bpf/syscall.c:1641 __sys_bpf+0x76f/0x810 kernel/bpf/syscall.c:5619 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 } ... key at: [] sock_hash_alloc.__key+0x0/0x20 ... acquired at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] sock_hash_delete_elem+0xb0/0x300 net/core/sock_map.c:939 bpf_prog_bc4ba9860fbb0da4+0x46/0x4a bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x238/0x460 kernel/trace/bpf_trace.c:2421 trace_kmem_cache_free include/trace/events/kmem.h:114 [inline] kmem_cache_free+0x23c/0x2a0 mm/slub.c:4362 __sigqueue_free kernel/signal.c:451 [inline] collect_signal kernel/signal.c:594 [inline] __dequeue_signal+0x4ac/0x5c0 kernel/signal.c:616 dequeue_signal+0xd8/0x5a0 kernel/signal.c:636 get_signal+0x5f7/0x1850 kernel/signal.c:2787 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] irqentry_exit_to_user_mode+0x79/0x270 kernel/entry/common.c:225 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 stack backtrace: CPU: 1 PID: 5094 Comm: syz-fuzzer Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106 print_bad_irq_dependency kernel/locking/lockdep.c:2626 [inline] check_irq_usage kernel/locking/lockdep.c:2865 [inline] check_prev_add kernel/locking/lockdep.c:3138 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain+0x4dc7/0x58e0 kernel/locking/lockdep.c:3869 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] sock_hash_delete_elem+0xb0/0x300 net/core/sock_map.c:939 bpf_prog_bc4ba9860fbb0da4+0x46/0x4a bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x238/0x460 kernel/trace/bpf_trace.c:2421 trace_kmem_cache_free include/trace/events/kmem.h:114 [inline] kmem_cache_free+0x23c/0x2a0 mm/slub.c:4362 __sigqueue_free kernel/signal.c:451 [inline] collect_signal kernel/signal.c:594 [inline] __dequeue_signal+0x4ac/0x5c0 kernel/signal.c:616 dequeue_signal+0xd8/0x5a0 kernel/signal.c:636 get_signal+0x5f7/0x1850 kernel/signal.c:2787 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] irqentry_exit_to_user_mode+0x79/0x270 kernel/entry/common.c:225 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0033:0x66a020 Code: 78 50 00 0f 84 e5 05 00 00 90 48 85 f6 0f 84 b1 04 00 00 48 39 88 d0 00 0a 00 7e 7f 48 8b 90 88 00 0a 00 4c 8d 41 04 0f 1f 00 <4c> 39 c2 0f 82 34 07 00 00 4c 39 c1 0f 87 20 07 00 00 4c 8b 80 78 RSP: 002b:000000c000f591d8 EFLAGS: 00000206 RAX: 000000c000aa4000 RBX: 0000000000000258 RCX: 00000000000086c3 RDX: 0000000000010000 RSI: 000000000000145f RDI: 0000000000000004 RBP: 000000c000f59238 R08: 00000000000086c7 R09: 00000000000086c3 R10: 00000000001b86c3 R11: 0000000000000000 R12: 00000000000006c2 R13: 00000000000086c2 R14: 000000c0000061a0 R15: 0000000000007941