================================================================== BUG: KASAN: use-after-free in hlist_move_list include/linux/list.h:1014 [inline] BUG: KASAN: use-after-free in collect_expired_timers kernel/time/timer.c:1576 [inline] BUG: KASAN: use-after-free in __run_timers+0x32b/0x9a0 kernel/time/timer.c:1812 Write of size 8 at addr ffff8881136fca00 by task syz.8.2693/11197 CPU: 1 PID: 11197 Comm: syz.8.2693 Not tainted 6.1.134-syzkaller-00039-g3c6d0251e1fb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106 print_address_description+0x71/0x210 mm/kasan/report.c:316 print_report+0x4a/0x60 mm/kasan/report.c:427 kasan_report+0x122/0x150 mm/kasan/report.c:531 __asan_report_store8_noabort+0x17/0x20 mm/kasan/report_generic.c:356 hlist_move_list include/linux/list.h:1014 [inline] collect_expired_timers kernel/time/timer.c:1576 [inline] __run_timers+0x32b/0x9a0 kernel/time/timer.c:1812 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1839 handle_softirqs+0x1d7/0x600 kernel/softirq.c:624 __do_softirq kernel/softirq.c:662 [inline] invoke_softirq kernel/softirq.c:479 [inline] __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:711 irq_exit_rcu+0x9/0x10 kernel/softirq.c:723 instr_sysvec_call_function_single arch/x86/kernel/smp.c:262 [inline] sysvec_call_function_single+0xa6/0xc0 arch/x86/kernel/smp.c:262 asm_sysvec_call_function_single+0x1b/0x20 arch/x86/include/asm/idtentry.h:699 RIP: 0010:finish_task_switch+0x173/0x7b0 kernel/sched/core.c:5297 Code: 80 3c 2b 00 74 08 4c 89 f7 e8 89 e2 67 00 4d 8b 2e 4d 85 ed 0f 85 cd 00 00 00 4c 89 e7 e8 05 4e a3 03 fb 49 8d 9f 48 0b 00 00 <48> 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28 RSP: 0000:ffffc90000e77d20 EFLAGS: 00000282 RAX: 0000000080000001 RBX: ffff88811465c808 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff85a9f840 RDI: 00000000ffffffff RBP: ffffc90000e77d70 R08: dffffc0000000000 R09: ffffed10228cb001 R10: ffffed10228cb001 R11: 1ffff110228cb000 R12: ffff8881f7137c80 R13: 0000000000000000 R14: ffff8881f71387e0 R15: ffff88811465bcc0 context_switch kernel/sched/core.c:5423 [inline] __schedule+0xb8f/0x14e0 kernel/sched/core.c:6750 schedule+0xbd/0x170 kernel/sched/core.c:6826 exit_to_user_mode_loop+0x51/0xb0 kernel/entry/common.c:165 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316 irqentry_exit+0x12/0x40 kernel/entry/common.c:419 sysvec_reschedule_ipi+0x78/0x80 arch/x86/kernel/smp.c:244 asm_sysvec_reschedule_ipi+0x1b/0x20 arch/x86/include/asm/idtentry.h:696 RIP: 0033:0x7f1be9467d9d Code: 08 48 83 c3 08 48 39 d1 72 f3 48 83 e8 08 48 39 f2 73 17 66 2e 0f 1f 84 00 00 00 00 00 48 8b 70 f8 48 83 e8 08 48 39 f2 72 f3 <48> 39 c3 73 3e 48 89 33 48 83 c3 08 48 8b 70 f8 48 89 08 48 8b 0b RSP: 002b:00007fff1df99ed0 EFLAGS: 00000202 RAX: 00007f1be8c33920 RBX: 00007f1be8c2dd40 RCX: ffffffff81a2b24e RDX: ffffffff81a29f9e RSI: ffffffff81a29bdc RDI: 00007f1be8c3c018 RBP: 00007f1be8c24ce0 R08: 00007f1be8c30678 R09: 00007f1be97a2000 R10: 00007f1be89ff008 R11: 0000000000000010 R12: 00007f1be8c24cd8 R13: 000000000000001e R14: 00007fff1df9a028 R15: 00007f1be89ff008 Allocated by task 11154: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_alloc_info+0x25/0x30 mm/kasan/generic.c:505 ____kasan_kmalloc mm/kasan/common.c:379 [inline] __kasan_kmalloc+0x95/0xb0 mm/kasan/common.c:388 kasan_kmalloc include/linux/kasan.h:212 [inline] __do_kmalloc_node mm/slab_common.c:938 [inline] __kmalloc+0xb1/0x1e0 mm/slab_common.c:951 kmalloc include/linux/slab.h:568 [inline] kzalloc include/linux/slab.h:699 [inline] hci_alloc_dev_priv+0x27/0x1bd0 net/bluetooth/hci_core.c:2435 hci_alloc_dev include/net/bluetooth/hci_core.h:1484 [inline] hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:636 [inline] hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:712 [inline] hci_uart_tty_ioctl+0x3c8/0xa00 drivers/bluetooth/hci_ldisc.c:765 tty_ioctl+0x8ef/0xc60 drivers/tty/tty_io.c:2785 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x12f/0x1b0 fs/ioctl.c:856 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856 x64_sys_call+0x58b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Freed by task 11154: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x31/0x50 mm/kasan/generic.c:516 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:241 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249 kasan_slab_free include/linux/kasan.h:178 [inline] slab_free_hook mm/slub.c:1745 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1771 slab_free mm/slub.c:3686 [inline] __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3702 kfree+0x6f/0xf0 mm/slab_common.c:990 hci_release_dev+0x13ad/0x1500 net/bluetooth/hci_core.c:2763 bt_host_release+0x82/0x90 net/bluetooth/hci_sysfs.c:85 device_release+0xa4/0x1d0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x19d/0x280 lib/kobject.c:729 put_device+0x1f/0x30 drivers/base/core.c:3806 hci_dev_put include/net/bluetooth/hci_core.h:1444 [inline] hci_dev_cmd+0x265/0x720 net/bluetooth/hci_core.c:795 hci_sock_ioctl+0x41e/0x7f0 net/bluetooth/hci_sock.c:1096 sock_do_ioctl+0x101/0x310 net/socket.c:1194 sock_ioctl+0x4d8/0x6e0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x12f/0x1b0 fs/ioctl.c:856 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856 x64_sys_call+0x58b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Last potentially related work creation: kasan_save_stack+0x3a/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb6/0xc0 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496 insert_work+0x51/0x300 kernel/workqueue.c:1368 __queue_work+0x9b1/0xd30 kernel/workqueue.c:1527 queue_work_on+0xd2/0x140 kernel/workqueue.c:1555 queue_work include/linux/workqueue.h:510 [inline] hci_cmd_sync_run net/bluetooth/hci_sync.c:140 [inline] __hci_cmd_sync_sk+0xa3e/0xcf0 net/bluetooth/hci_sync.c:162 __hci_cmd_sync_status_sk net/bluetooth/hci_sync.c:253 [inline] __hci_cmd_sync_status net/bluetooth/hci_sync.c:277 [inline] hci_cmd_sync_status+0x53/0x120 net/bluetooth/hci_sync.c:288 hci_dev_cmd+0x628/0x720 net/bluetooth/hci_core.c:-1 hci_sock_ioctl+0x41e/0x7f0 net/bluetooth/hci_sock.c:1096 sock_do_ioctl+0x101/0x310 net/socket.c:1194 sock_ioctl+0x4d8/0x6e0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x12f/0x1b0 fs/ioctl.c:856 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856 x64_sys_call+0x58b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Second to last potentially related work creation: kasan_save_stack+0x3a/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb6/0xc0 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496 insert_work+0x51/0x300 kernel/workqueue.c:1368 __queue_work+0x9b1/0xd30 kernel/workqueue.c:1527 queue_work_on+0xd2/0x140 kernel/workqueue.c:1555 queue_work include/linux/workqueue.h:510 [inline] hci_cmd_timeout+0x191/0x200 net/bluetooth/hci_core.c:1468 process_one_work+0x71f/0xc40 kernel/workqueue.c:2299 worker_thread+0xa29/0x11f0 kernel/workqueue.c:2446 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff8881136fc000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 2560 bytes inside of 8192-byte region [ffff8881136fc000, ffff8881136fe000) The buggy address belongs to the physical page: page:ffffea00044dbe00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1136f8 head:ffffea00044dbe00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=1) raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100043500 raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 11154, tgid 11153 (syz.7.2679), ts 1134602411351, free_ts 1134592065936 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2637 prep_new_page+0x1c/0x110 mm/page_alloc.c:2644 get_page_from_freelist+0x2c6e/0x2ce0 mm/page_alloc.c:4539 __alloc_pages+0x19e/0x3a0 mm/page_alloc.c:5842 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1 allocate_slab mm/slub.c:1962 [inline] new_slab+0x98/0x3d0 mm/slub.c:2015 ___slab_alloc+0x6f6/0xb50 mm/slub.c:3203 __slab_alloc+0x5e/0xa0 mm/slub.c:3302 slab_alloc_node mm/slub.c:3387 [inline] __kmem_cache_alloc_node+0x203/0x2c0 mm/slub.c:3462 __do_kmalloc_node mm/slab_common.c:937 [inline] __kmalloc+0xa1/0x1e0 mm/slab_common.c:951 kmalloc include/linux/slab.h:568 [inline] kzalloc include/linux/slab.h:699 [inline] hci_alloc_dev_priv+0x27/0x1bd0 net/bluetooth/hci_core.c:2435 hci_alloc_dev include/net/bluetooth/hci_core.h:1484 [inline] hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:636 [inline] hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:712 [inline] hci_uart_tty_ioctl+0x3c8/0xa00 drivers/bluetooth/hci_ldisc.c:765 tty_ioctl+0x8ef/0xc60 drivers/tty/tty_io.c:2785 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x12f/0x1b0 fs/ioctl.c:856 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856 x64_sys_call+0x58b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17 page last free stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1545 [inline] free_pcp_prepare mm/page_alloc.c:1619 [inline] free_unref_page_prepare+0x742/0x750 mm/page_alloc.c:3581 free_unref_page+0x8f/0x530 mm/page_alloc.c:3677 free_the_page mm/page_alloc.c:830 [inline] free_compound_page+0x99/0xd0 mm/page_alloc.c:853 destroy_large_folio+0x68/0xa0 mm/page_alloc.c:890 __folio_put_large mm/swap.c:110 [inline] __folio_put+0xd1/0xe0 mm/swap.c:118 folio_put include/linux/mm.h:1431 [inline] put_page include/linux/mm.h:1483 [inline] __skb_frag_unref include/linux/skbuff.h:3455 [inline] skb_release_data+0x47f/0x890 net/core/skbuff.c:785 skb_release_all net/core/skbuff.c:856 [inline] __kfree_skb+0x50/0x70 net/core/skbuff.c:870 tcp_wmem_free_skb include/net/tcp.h:308 [inline] tcp_rtx_queue_unlink_and_free+0x400/0x640 include/net/tcp.h:1979 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3400 [inline] tcp_ack+0x2008/0x5ee0 net/ipv4/tcp_input.c:3959 tcp_rcv_established+0xe34/0x19f0 net/ipv4/tcp_input.c:6006 tcp_v4_do_rcv+0x446/0xa10 net/ipv4/tcp_ipv4.c:1683 tcp_v4_rcv+0x233c/0x2a80 net/ipv4/tcp_ipv4.c:2114 ip_protocol_deliver_rcu+0x325/0x6e0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x24e/0x410 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:305 [inline] ip_local_deliver+0x1d8/0x320 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:463 [inline] ip_sublist_rcv_finish net/ipv4/ip_input.c:580 [inline] ip_list_rcv_finish net/ipv4/ip_input.c:631 [inline] ip_sublist_rcv+0x773/0x880 net/ipv4/ip_input.c:639 Memory state around the buggy address: ffff8881136fc900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881136fc980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8881136fca00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8881136fca80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881136fcb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 11197 Comm: syz.8.2693 Tainted: G B 6.1.134-syzkaller-00039-g3c6d0251e1fb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__queue_work+0x575/0xd30 kernel/workqueue.c:-1 Code: 39 2b 0f 84 b9 00 00 00 e8 28 d0 28 00 4c 89 ff e8 30 8d a8 03 49 bc 00 00 00 00 00 fc ff df 4c 8b 6d d0 4c 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ef e8 7c 21 6d 00 49 8b 7d 00 e8 13 89 RSP: 0000:ffffc900001b0c70 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff88811465bcc0 RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff RBP: ffffc900001b0d08 R08: fffffffffffffffb R09: 0000000000000007 R10: ffffed10226df939 R11: 1ffff110226df939 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff8881136fc9c8 R15: 0000000000000008 FS: 000055556426f500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3151eff8 CR3: 000000012e980000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: delayed_work_timer_fn+0x61/0x80 kernel/workqueue.c:1653 call_timer_fn+0x46/0x2a0 kernel/time/timer.c:1510 expire_timers kernel/time/timer.c:1550 [inline] __run_timers+0x667/0x9a0 kernel/time/timer.c:1826 run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1839 handle_softirqs+0x1d7/0x600 kernel/softirq.c:624 __do_softirq kernel/softirq.c:662 [inline] invoke_softirq kernel/softirq.c:479 [inline] __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:711 irq_exit_rcu+0x9/0x10 kernel/softirq.c:723 instr_sysvec_call_function_single arch/x86/kernel/smp.c:262 [inline] sysvec_call_function_single+0xa6/0xc0 arch/x86/kernel/smp.c:262 asm_sysvec_call_function_single+0x1b/0x20 arch/x86/include/asm/idtentry.h:699 RIP: 0010:finish_task_switch+0x173/0x7b0 kernel/sched/core.c:5297 Code: 80 3c 2b 00 74 08 4c 89 f7 e8 89 e2 67 00 4d 8b 2e 4d 85 ed 0f 85 cd 00 00 00 4c 89 e7 e8 05 4e a3 03 fb 49 8d 9f 48 0b 00 00 <48> 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28 RSP: 0000:ffffc90000e77d20 EFLAGS: 00000282 RAX: 0000000080000001 RBX: ffff88811465c808 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff85a9f840 RDI: 00000000ffffffff RBP: ffffc90000e77d70 R08: dffffc0000000000 R09: ffffed10228cb001 R10: ffffed10228cb001 R11: 1ffff110228cb000 R12: ffff8881f7137c80 R13: 0000000000000000 R14: ffff8881f71387e0 R15: ffff88811465bcc0 context_switch kernel/sched/core.c:5423 [inline] __schedule+0xb8f/0x14e0 kernel/sched/core.c:6750 schedule+0xbd/0x170 kernel/sched/core.c:6826 exit_to_user_mode_loop+0x51/0xb0 kernel/entry/common.c:165 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316 irqentry_exit+0x12/0x40 kernel/entry/common.c:419 sysvec_reschedule_ipi+0x78/0x80 arch/x86/kernel/smp.c:244 asm_sysvec_reschedule_ipi+0x1b/0x20 arch/x86/include/asm/idtentry.h:696 RIP: 0033:0x7f1be9467d9d Code: 08 48 83 c3 08 48 39 d1 72 f3 48 83 e8 08 48 39 f2 73 17 66 2e 0f 1f 84 00 00 00 00 00 48 8b 70 f8 48 83 e8 08 48 39 f2 72 f3 <48> 39 c3 73 3e 48 89 33 48 83 c3 08 48 8b 70 f8 48 89 08 48 8b 0b RSP: 002b:00007fff1df99ed0 EFLAGS: 00000202 RAX: 00007f1be8c33920 RBX: 00007f1be8c2dd40 RCX: ffffffff81a2b24e RDX: ffffffff81a29f9e RSI: ffffffff81a29bdc RDI: 00007f1be8c3c018 RBP: 00007f1be8c24ce0 R08: 00007f1be8c30678 R09: 00007f1be97a2000 R10: 00007f1be89ff008 R11: 0000000000000010 R12: 00007f1be8c24cd8 R13: 000000000000001e R14: 00007fff1df9a028 R15: 00007f1be89ff008 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__queue_work+0x575/0xd30 kernel/workqueue.c:-1 Code: 39 2b 0f 84 b9 00 00 00 e8 28 d0 28 00 4c 89 ff e8 30 8d a8 03 49 bc 00 00 00 00 00 fc ff df 4c 8b 6d d0 4c 89 e8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ef e8 7c 21 6d 00 49 8b 7d 00 e8 13 89 RSP: 0000:ffffc900001b0c70 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff88811465bcc0 RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff RBP: ffffc900001b0d08 R08: fffffffffffffffb R09: 0000000000000007 R10: ffffed10226df939 R11: 1ffff110226df939 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff8881136fc9c8 R15: 0000000000000008 FS: 000055556426f500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3151eff8 CR3: 000000012e980000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 80 3c 2b 00 cmpb $0x0,(%rbx,%rbp,1) 4: 74 08 je 0xe 6: 4c 89 f7 mov %r14,%rdi 9: e8 89 e2 67 00 call 0x67e297 e: 4d 8b 2e mov (%r14),%r13 11: 4d 85 ed test %r13,%r13 14: 0f 85 cd 00 00 00 jne 0xe7 1a: 4c 89 e7 mov %r12,%rdi 1d: e8 05 4e a3 03 call 0x3a34e27 22: fb sti 23: 49 8d 9f 48 0b 00 00 lea 0xb48(%r15),%rbx * 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction 2d: 48 c1 e8 03 shr $0x3,%rax 31: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 38: fc ff df 3b: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax