==================================================================
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 ffff88811ce28a00 by task syz-executor/5952
CPU: 0 PID: 5952 Comm: syz-executor Tainted: G W 6.1.145-syzkaller-00023-g2245c50c5f5f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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:642
__do_softirq kernel/softirq.c:680 [inline]
invoke_softirq kernel/softirq.c:497 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:729
irq_exit_rcu+0x9/0x10 kernel/softirq.c:741
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__page_dup_rmap include/linux/rmap.h:214 [inline]
RIP: 0010:page_dup_file_rmap include/linux/rmap.h:219 [inline]
RIP: 0010:copy_present_pte mm/memory.c:993 [inline]
RIP: 0010:copy_pte_range mm/memory.c:1109 [inline]
RIP: 0010:copy_pmd_range mm/memory.c:1195 [inline]
RIP: 0010:copy_pud_range mm/memory.c:1232 [inline]
RIP: 0010:copy_p4d_range mm/memory.c:1256 [inline]
RIP: 0010:copy_page_range+0x111c/0x2850 mm/memory.c:1354
Code: e8 29 68 c7 ff 4d 89 fe 49 bc 00 00 00 00 00 fc ff df 48 8b 5c 24 20 49 8d 7e 34 be 04 00 00 00 e8 99 c7 0b 00 f0 41 ff 46 34 <4c> 89 ff 48 83 c7 30 be 04 00 00 00 e8 83 c7 0b 00 f0 41 ff 47 30
RSP: 0018:ffffc900037df6a0 EFLAGS: 00000202
RAX: ffffffff81a89601 RBX: ffffea00040d38c8 RCX: ffffffff81a89697
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea00040d38f4
RBP: ffffc900037df950 R08: dffffc0000000000 R09: fffff9400081a71f
R10: fffff9400081a71f R11: 1ffffd400081a71e R12: dffffc0000000000
R13: 80000001034e3007 R14: ffffea00040d38c0 R15: ffffea00040d38c0
dup_mmap kernel/fork.c:775 [inline]
dup_mm kernel/fork.c:1641 [inline]
copy_mm+0xf04/0x1a10 kernel/fork.c:1693
copy_process+0x12b4/0x3420 kernel/fork.c:2456
kernel_clone+0x23a/0x810 kernel/fork.c:2863
__do_sys_clone kernel/fork.c:3006 [inline]
__se_sys_clone kernel/fork.c:2990 [inline]
__x64_sys_clone+0x168/0x1b0 kernel/fork.c:2990
x64_sys_call+0x990/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57
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
RIP: 0033:0x7f3ac0185213
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffc557d56d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3ac0185213
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 00005555579e97d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 0000000000025506 R15: 00007ffc557d5870
Allocated by task 8219:
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:2433
hci_alloc_dev include/net/bluetooth/hci_core.h:1484 [inline]
hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:641 [inline]
hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:719 [inline]
hci_uart_tty_ioctl+0x3d6/0xa20 drivers/bluetooth/hci_ldisc.c:774
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 8219:
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+0x12a3/0x13b0 net/bluetooth/hci_core.c:2761
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 ffff88811ce28000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2560 bytes inside of
8192-byte region [ffff88811ce28000, ffff88811ce2a000)
The buggy address belongs to the physical page:
page:ffffea0004738a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11ce28
head:ffffea0004738a00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffffea00049e0800 dead000000000003 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 4436, tgid 4436 (syz-executor), ts 86617528631, free_ts 86572037772
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+0x2c7b/0x2cf0 mm/page_alloc.c:4544
__alloc_pages+0x1c3/0x450 mm/page_alloc.c:5858
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_node+0xa1/0x1e0 mm/slab_common.c:945
kmalloc_node include/linux/slab.h:589 [inline]
kvmalloc_node+0x294/0x480 mm/util.c:592
kvmalloc include/linux/slab.h:716 [inline]
kvmalloc_array include/linux/slab.h:734 [inline]
__ptr_ring_init_queue_alloc include/linux/ptr_ring.h:471 [inline]
ptr_ring_init include/linux/ptr_ring.h:489 [inline]
skb_array_init include/linux/skb_array.h:182 [inline]
pfifo_fast_init+0x3af/0x7a0 net/sched/sch_generic.c:867
qdisc_create_dflt+0x150/0x3b0 net/sched/sch_generic.c:1013
attach_one_default_qdisc net/sched/sch_generic.c:1169 [inline]
netdev_for_each_tx_queue include/linux/netdevice.h:2503 [inline]
attach_default_qdiscs net/sched/sch_generic.c:1187 [inline]
dev_activate+0x2cf/0x1040 net/sched/sch_generic.c:1246
__dev_open+0x3ce/0x4f0 net/core/dev.c:1505
__dev_change_flags+0x21b/0x6b0 net/core/dev.c:8642
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_pages+0x67/0x100 mm/page_alloc.c:5947
__free_slab+0xca/0x1a0 mm/slub.c:2039
free_slab mm/slub.c:2054 [inline]
discard_slab mm/slub.c:2060 [inline]
__unfreeze_partials+0x160/0x190 mm/slub.c:2609
put_cpu_partial+0xa9/0x100 mm/slub.c:2685
__slab_free+0x1c4/0x280 mm/slub.c:3563
do_slab_free mm/slub.c:3640 [inline]
___cache_free+0xbf/0xd0 mm/slub.c:3696
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0xc6/0x140 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x14a/0x170 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x24/0x80 mm/kasan/common.c:310
kasan_slab_alloc include/linux/kasan.h:202 [inline]
slab_post_alloc_hook+0x4f/0x2d0 mm/slab.h:768
slab_alloc_node mm/slub.c:3421 [inline]
__kmem_cache_alloc_node+0x192/0x2c0 mm/slub.c:3462
kmalloc_trace+0x29/0xb0 mm/slab_common.c:1028
kmalloc include/linux/slab.h:563 [inline]
kzalloc include/linux/slab.h:699 [inline]
ref_tracker_alloc+0x139/0x430 lib/ref_tracker.c:85
__netdev_tracker_alloc include/linux/netdevice.h:4084 [inline]
netdev_hold include/linux/netdevice.h:4113 [inline]
netdev_queue_add_kobject net/core/net-sysfs.c:1657 [inline]
netdev_queue_update_kobjects+0x185/0x470 net/core/net-sysfs.c:1712
Memory state around the buggy address:
ffff88811ce28900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88811ce28980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88811ce28a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88811ce28a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88811ce28b00: 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: 0 PID: 5952 Comm: syz-executor Tainted: G B W 6.1.145-syzkaller-00023-g2245c50c5f5f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__queue_work+0x575/0xd30 kernel/workqueue.c:-1
Code: 39 2b 0f 84 b9 00 00 00 e8 a8 d3 28 00 4c 89 ff e8 d0 39 a9 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 6c 30 6d 00 49 8b 7d 00 e8 b3 35
RSP: 0018:ffffc90000007c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff88811c5a3cc0
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed10239c5139 R11: 1ffff110239c5139 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88811ce289c8 R15: 0000000000000008
FS: 00005555579e9500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3ac0ee56c0 CR3: 000000012816d000 CR4: 00000000003506b0
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:642
__do_softirq kernel/softirq.c:680 [inline]
invoke_softirq kernel/softirq.c:497 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:729
irq_exit_rcu+0x9/0x10 kernel/softirq.c:741
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__page_dup_rmap include/linux/rmap.h:214 [inline]
RIP: 0010:page_dup_file_rmap include/linux/rmap.h:219 [inline]
RIP: 0010:copy_present_pte mm/memory.c:993 [inline]
RIP: 0010:copy_pte_range mm/memory.c:1109 [inline]
RIP: 0010:copy_pmd_range mm/memory.c:1195 [inline]
RIP: 0010:copy_pud_range mm/memory.c:1232 [inline]
RIP: 0010:copy_p4d_range mm/memory.c:1256 [inline]
RIP: 0010:copy_page_range+0x111c/0x2850 mm/memory.c:1354
Code: e8 29 68 c7 ff 4d 89 fe 49 bc 00 00 00 00 00 fc ff df 48 8b 5c 24 20 49 8d 7e 34 be 04 00 00 00 e8 99 c7 0b 00 f0 41 ff 46 34 <4c> 89 ff 48 83 c7 30 be 04 00 00 00 e8 83 c7 0b 00 f0 41 ff 47 30
RSP: 0018:ffffc900037df6a0 EFLAGS: 00000202
RAX: ffffffff81a89601 RBX: ffffea00040d38c8 RCX: ffffffff81a89697
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea00040d38f4
RBP: ffffc900037df950 R08: dffffc0000000000 R09: fffff9400081a71f
R10: fffff9400081a71f R11: 1ffffd400081a71e R12: dffffc0000000000
R13: 80000001034e3007 R14: ffffea00040d38c0 R15: ffffea00040d38c0
dup_mmap kernel/fork.c:775 [inline]
dup_mm kernel/fork.c:1641 [inline]
copy_mm+0xf04/0x1a10 kernel/fork.c:1693
copy_process+0x12b4/0x3420 kernel/fork.c:2456
kernel_clone+0x23a/0x810 kernel/fork.c:2863
__do_sys_clone kernel/fork.c:3006 [inline]
__se_sys_clone kernel/fork.c:2990 [inline]
__x64_sys_clone+0x168/0x1b0 kernel/fork.c:2990
x64_sys_call+0x990/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57
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
RIP: 0033:0x7f3ac0185213
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffc557d56d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3ac0185213
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 00005555579e97d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 0000000000025506 R15: 00007ffc557d5870
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 a8 d3 28 00 4c 89 ff e8 d0 39 a9 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 6c 30 6d 00 49 8b 7d 00 e8 b3 35
RSP: 0018:ffffc90000007c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff88811c5a3cc0
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed10239c5139 R11: 1ffff110239c5139 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88811ce289c8 R15: 0000000000000008
FS: 00005555579e9500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3ac0ee56c0 CR3: 000000012816d000 CR4: 00000000003506b0
----------------
Code disassembly (best guess):
0: e8 29 68 c7 ff call 0xffc7682e
5: 4d 89 fe mov %r15,%r14
8: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12
f: fc ff df
12: 48 8b 5c 24 20 mov 0x20(%rsp),%rbx
17: 49 8d 7e 34 lea 0x34(%r14),%rdi
1b: be 04 00 00 00 mov $0x4,%esi
20: e8 99 c7 0b 00 call 0xbc7be
25: f0 41 ff 46 34 lock incl 0x34(%r14)
* 2a: 4c 89 ff mov %r15,%rdi <-- trapping instruction
2d: 48 83 c7 30 add $0x30,%rdi
31: be 04 00 00 00 mov $0x4,%esi
36: e8 83 c7 0b 00 call 0xbc7be
3b: f0 41 ff 47 30 lock incl 0x30(%r15)