==================================================================
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 ffff888121e28a00 by task syz-executor/895
CPU: 0 PID: 895 Comm: syz-executor Not tainted 6.1.134-syzkaller-00012-g646380b087a5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
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_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:destroy_inode fs/inode.c:310 [inline]
RIP: 0010:evict+0x74c/0x890 fs/inode.c:720
Code: ff e8 a8 3f f0 ff 49 8b 07 4c 39 f8 0f 85 4c 01 00 00 48 89 df e8 d4 4d ff ff 4d 8d 7e 08 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 <74> 08 4c 89 ff e8 7a 3f f0 ff 49 8b 07 48 85 c0 74 3a 48 89 df 41
RSP: 0018:ffffc90000df7aa0 EFLAGS: 00000246
RAX: 1ffffffff0bb6d3d RBX: ffff8881005aad80 RCX: ffff888118db9440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000df7bc8 R08: dffffc0000000000 R09: ffffed103ee071a3
R10: ffffed103ee071a3 R11: 1ffff1103ee071a2 R12: dffffc0000000000
R13: ffff8881005aae08 R14: ffffffff85db69e0 R15: ffffffff85db69e8
iput_final fs/inode.c:1834 [inline]
iput+0x620/0x670 fs/inode.c:1860
dentry_unlink_inode+0x33d/0x3f0 fs/dcache.c:405
__dentry_kill+0x460/0x670 fs/dcache.c:611
dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
dput+0x42/0x80 fs/dcache.c:918
__fput+0x5be/0x8f0 fs/file_table.c:328
____fput+0x15/0x20 fs/file_table.c:348
task_work_run+0x1db/0x240 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa18c18d5a0
Code: 00 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d4 e8 40 46 00 00 80 3d a1 6f 1f 00 00 74 17 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c
RSP: 002b:00007ffd7a27e2a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fa18c18d5a0
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007ffd7a27e2ec R08: 00000000000002e8 R09: 0079746972756365
R10: 00007fa18c380120 R11: 0000000000000202 R12: 0000000000000078
R13: 00000000000927c0 R14: 000000000003886a R15: 00007ffd7a27e340
Allocated by task 3523:
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 3523:
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 ffff888121e28000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2560 bytes inside of
8192-byte region [ffff888121e28000, ffff888121e2a000)
The buggy address belongs to the physical page:
page:ffffea0004878a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x121e28
head:ffffea0004878a00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffffea0004cc1200 dead000000000002 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 2133, tgid 2130 (syz.4.457), ts 148934967631, free_ts 148840533969
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:5838
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_track_caller+0xa0/0x1e0 mm/slab_common.c:958
kmalloc_reserve net/core/skbuff.c:446 [inline]
__alloc_skb+0x224/0x7e0 net/core/skbuff.c:515
alloc_skb include/linux/skbuff.h:1290 [inline]
alloc_skb_with_frags+0xa8/0x620 net/core/skbuff.c:6162
sock_alloc_send_pskb+0x853/0x980 net/core/sock.c:2756
tun_alloc_skb drivers/net/tun.c:1524 [inline]
tun_get_user+0x4e5/0x31a0 drivers/net/tun.c:1842
tun_chr_write_iter+0x1fb/0x300 drivers/net/tun.c:2044
call_write_iter include/linux/fs.h:2274 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x5db/0xca0 fs/read_write.c:584
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+0x72d/0x19f0 net/ipv4/tcp_input.c:6086
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:
ffff888121e28900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888121e28980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888121e28a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888121e28a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888121e28b00: 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: 895 Comm: syz-executor Tainted: G B 6.1.134-syzkaller-00012-g646380b087a5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:__queue_work+0x575/0xd30 kernel/workqueue.c:-1
Code: 39 2b 0f 84 b9 00 00 00 e8 58 ce 28 00 4c 89 ff e8 30 7d 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 6c 20 6d 00 49 8b 7d 00 e8 13 79
RSP: 0018:ffffc90000007c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff888118db9440
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed10243c5139 R11: 1ffff110243c5139 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888121e289c8 R15: 0000000000000008
FS: 0000555562081500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa18c37fab8 CR3: 0000000134656000 CR4: 00000000003506b0
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_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:destroy_inode fs/inode.c:310 [inline]
RIP: 0010:evict+0x74c/0x890 fs/inode.c:720
Code: ff e8 a8 3f f0 ff 49 8b 07 4c 39 f8 0f 85 4c 01 00 00 48 89 df e8 d4 4d ff ff 4d 8d 7e 08 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 <74> 08 4c 89 ff e8 7a 3f f0 ff 49 8b 07 48 85 c0 74 3a 48 89 df 41
RSP: 0018:ffffc90000df7aa0 EFLAGS: 00000246
RAX: 1ffffffff0bb6d3d RBX: ffff8881005aad80 RCX: ffff888118db9440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000df7bc8 R08: dffffc0000000000 R09: ffffed103ee071a3
R10: ffffed103ee071a3 R11: 1ffff1103ee071a2 R12: dffffc0000000000
R13: ffff8881005aae08 R14: ffffffff85db69e0 R15: ffffffff85db69e8
iput_final fs/inode.c:1834 [inline]
iput+0x620/0x670 fs/inode.c:1860
dentry_unlink_inode+0x33d/0x3f0 fs/dcache.c:405
__dentry_kill+0x460/0x670 fs/dcache.c:611
dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
dput+0x42/0x80 fs/dcache.c:918
__fput+0x5be/0x8f0 fs/file_table.c:328
____fput+0x15/0x20 fs/file_table.c:348
task_work_run+0x1db/0x240 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa18c18d5a0
Code: 00 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d4 e8 40 46 00 00 80 3d a1 6f 1f 00 00 74 17 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c
RSP: 002b:00007ffd7a27e2a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fa18c18d5a0
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007ffd7a27e2ec R08: 00000000000002e8 R09: 0079746972756365
R10: 00007fa18c380120 R11: 0000000000000202 R12: 0000000000000078
R13: 00000000000927c0 R14: 000000000003886a R15: 00007ffd7a27e340
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 58 ce 28 00 4c 89 ff e8 30 7d 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 6c 20 6d 00 49 8b 7d 00 e8 13 79
RSP: 0018:ffffc90000007c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff888118db9440
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed10243c5139 R11: 1ffff110243c5139 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888121e289c8 R15: 0000000000000008
FS: 0000555562081500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa18c37fab8 CR3: 0000000134656000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: e8 a8 3f f0 ff call 0xfff03fad
5: 49 8b 07 mov (%r15),%rax
8: 4c 39 f8 cmp %r15,%rax
b: 0f 85 4c 01 00 00 jne 0x15d
11: 48 89 df mov %rbx,%rdi
14: e8 d4 4d ff ff call 0xffff4ded
19: 4d 8d 7e 08 lea 0x8(%r14),%r15
1d: 4c 89 f8 mov %r15,%rax
20: 48 c1 e8 03 shr $0x3,%rax
24: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1)
* 29: 74 08 je 0x33 <-- trapping instruction
2b: 4c 89 ff mov %r15,%rdi
2e: e8 7a 3f f0 ff call 0xfff03fad
33: 49 8b 07 mov (%r15),%rax
36: 48 85 c0 test %rax,%rax
39: 74 3a je 0x75
3b: 48 89 df mov %rbx,%rdi
3e: 41 rex.B