==================================================================
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 ffff888118e74a00 by task syz.9.1552/6555
CPU: 0 PID: 6555 Comm: syz.9.1552 Not tainted 6.1.134-syzkaller-00014-g3cd01bb5bd37 #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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x55/0x80 kernel/locking/spinlock.c:194
Code: 40 e4 ed 86 e8 bc 92 c4 fc 4c 89 f7 48 83 3d d1 3d fe 01 00 74 30 e8 1e 0d 00 00 90 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 f6 e3 5b fc 65 8b 05 37 c7 12 7b 85 c0 74 05 5b 41 5e 5d c3 e8
RSP: 0018:ffffc9000ab3f5a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000a06 RCX: dffffc0000000000
RDX: ffffc90009bdf698 RSI: 0000000000000a06 RDI: 0000000000000001
RBP: ffffc9000ab3f5b0 R08: dffffc0000000000 R09: fffff52001567e65
R10: 0000000000000000 R11: ffffffff81341390 R12: ffff88810f036900
R13: 0000000000000010 R14: 0000000000000001 R15: 0000000000000000
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
__wake_up_common_lock kernel/sched/wait.c:141 [inline]
__wake_up_sync_key+0x166/0x280 kernel/sched/wait.c:212
__unix_dgram_recvmsg+0x495/0xd50 net/unix/af_unix.c:2456
unix_dgram_recvmsg+0xc7/0xe0 net/unix/af_unix.c:2526
____sys_recvmsg+0x2a0/0x590 net/socket.c:-1
___sys_recvmsg+0x1b2/0x510 net/socket.c:2770
do_recvmmsg+0x359/0x7a0 net/socket.c:2864
__sys_recvmmsg net/socket.c:2943 [inline]
__do_sys_recvmmsg net/socket.c:2966 [inline]
__se_sys_recvmmsg net/socket.c:2959 [inline]
__x64_sys_recvmmsg+0x18d/0x240 net/socket.c:2959
x64_sys_call+0x3e7/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:300
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: 0033:0x7f3a8f58e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3a90478038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f3a8f7b6080 RCX: 00007f3a8f58e969
RDX: 03fffffffffffeda RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f3a8f610ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f3a8f7b6080 R15: 00007fffcae19f78
Allocated by task 6463:
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 6463:
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+0x33b/0x720 net/bluetooth/hci_core.c:749
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 ffff888118e74000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2560 bytes inside of
8192-byte region [ffff888118e74000, ffff888118e76000)
The buggy address belongs to the physical page:
page:ffffea0004639c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x118e70
head:ffffea0004639c00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffffea000491d000 dead000000000004 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 5400, tgid 5400 (syz-executor), ts 712993682878, free_ts 637679310520
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+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]
wg_packet_queue_init+0x95/0x320 drivers/net/wireguard/queueing.c:32
wg_newlink+0x43c/0x790 drivers/net/wireguard/device.c:357
rtnl_newlink_create net/core/rtnetlink.c:3422 [inline]
__rtnl_newlink net/core/rtnetlink.c:3642 [inline]
rtnl_newlink+0x14b9/0x2030 net/core/rtnetlink.c:3655
rtnetlink_rcv_msg+0x9f4/0xcf0 net/core/rtnetlink.c:6153
netlink_rcv_skb+0x1f2/0x440 net/netlink/af_netlink.c:2503
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:5927
__free_slab+0xca/0x1a0 mm/slub.c:2039
free_slab mm/slub.c:2054 [inline]
discard_slab+0x29/0x40 mm/slub.c:2060
__slab_free+0x201/0x280 mm/slub.c:3599
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
__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]
nlmsg_new include/net/netlink.h:991 [inline]
rtmsg_ifinfo_build_skb+0x7c/0x190 net/core/rtnetlink.c:3966
unregister_netdevice_many+0x101d/0x1820 net/core/dev.c:10943
Memory state around the buggy address:
ffff888118e74900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888118e74980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888118e74a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888118e74a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888118e74b00: 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: 6555 Comm: syz.9.1552 Tainted: G B 6.1.134-syzkaller-00014-g3cd01bb5bd37 #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 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 20 6d 00 49 8b 7d 00 e8 13 89
RSP: 0018:ffffc90000007c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff88811fe25100
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed10231ce939 R11: 1ffff110231ce939 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888118e749c8 R15: 0000000000000008
FS: 00007f3a904786c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000d33030 CR3: 00000001257b4000 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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x55/0x80 kernel/locking/spinlock.c:194
Code: 40 e4 ed 86 e8 bc 92 c4 fc 4c 89 f7 48 83 3d d1 3d fe 01 00 74 30 e8 1e 0d 00 00 90 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 f6 e3 5b fc 65 8b 05 37 c7 12 7b 85 c0 74 05 5b 41 5e 5d c3 e8
RSP: 0018:ffffc9000ab3f5a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000a06 RCX: dffffc0000000000
RDX: ffffc90009bdf698 RSI: 0000000000000a06 RDI: 0000000000000001
RBP: ffffc9000ab3f5b0 R08: dffffc0000000000 R09: fffff52001567e65
R10: 0000000000000000 R11: ffffffff81341390 R12: ffff88810f036900
R13: 0000000000000010 R14: 0000000000000001 R15: 0000000000000000
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
__wake_up_common_lock kernel/sched/wait.c:141 [inline]
__wake_up_sync_key+0x166/0x280 kernel/sched/wait.c:212
__unix_dgram_recvmsg+0x495/0xd50 net/unix/af_unix.c:2456
unix_dgram_recvmsg+0xc7/0xe0 net/unix/af_unix.c:2526
____sys_recvmsg+0x2a0/0x590 net/socket.c:-1
___sys_recvmsg+0x1b2/0x510 net/socket.c:2770
do_recvmmsg+0x359/0x7a0 net/socket.c:2864
__sys_recvmmsg net/socket.c:2943 [inline]
__do_sys_recvmmsg net/socket.c:2966 [inline]
__se_sys_recvmmsg net/socket.c:2959 [inline]
__x64_sys_recvmmsg+0x18d/0x240 net/socket.c:2959
x64_sys_call+0x3e7/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:300
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: 0033:0x7f3a8f58e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3a90478038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f3a8f7b6080 RCX: 00007f3a8f58e969
RDX: 03fffffffffffeda RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f3a8f610ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f3a8f7b6080 R15: 00007fffcae19f78
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 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 20 6d 00 49 8b 7d 00 e8 13 89
RSP: 0018:ffffc90000007c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff88811fe25100
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed10231ce939 R11: 1ffff110231ce939 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff888118e749c8 R15: 0000000000000008
FS: 00007f3a904786c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000d33030 CR3: 00000001257b4000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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Code disassembly (best guess):
0: 40 e4 ed rex in $0xed,%al
3: 86 e8 xchg %ch,%al
5: bc 92 c4 fc 4c mov $0x4cfcc492,%esp
a: 89 f7 mov %esi,%edi
c: 48 83 3d d1 3d fe 01 cmpq $0x0,0x1fe3dd1(%rip) # 0x1fe3de5
13: 00
14: 74 30 je 0x46
16: e8 1e 0d 00 00 call 0xd39
1b: 90 nop
1c: f7 c3 00 02 00 00 test $0x200,%ebx
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 f6 e3 5b fc call 0xfc5be425 <-- trapping instruction
2f: 65 8b 05 37 c7 12 7b mov %gs:0x7b12c737(%rip),%eax # 0x7b12c76d
36: 85 c0 test %eax,%eax
38: 74 05 je 0x3f
3a: 5b pop %rbx
3b: 41 5e pop %r14
3d: 5d pop %rbp
3e: c3 ret
3f: e8 .byte 0xe8