==================================================================
BUG: KASAN: use-after-free in hlist_add_head include/linux/list.h:930 [inline]
BUG: KASAN: use-after-free in enqueue_timer+0xae/0x480 kernel/time/timer.c:611
Write of size 8 at addr ffff8881156aca00 by task syz.2.2242/9328
CPU: 1 PID: 9328 Comm: syz.2.2242 Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
__dump_stack+0x21/0x24 lib/dump_stack.c:88
dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
print_address_description+0x71/0x200 mm/kasan/report.c:316
print_report+0x4a/0x60 mm/kasan/report.c:420
kasan_report+0x122/0x150 mm/kasan/report.c:524
__asan_report_store8_noabort+0x17/0x20 mm/kasan/report_generic.c:356
hlist_add_head include/linux/list.h:930 [inline]
enqueue_timer+0xae/0x480 kernel/time/timer.c:611
__mod_timer+0x84a/0xbf0 kernel/time/timer.c:-1
mod_timer+0x1f/0x30 kernel/time/timer.c:1196
can_stat_update+0xb1a/0xbb0 net/can/proc.c:176
call_timer_fn+0x46/0x2a0 kernel/time/timer.c:1553
expire_timers kernel/time/timer.c:1604 [inline]
__run_timers+0x644/0x9b0 kernel/time/timer.c:1875
run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1888
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:update_stack_state+0x273/0x480 arch/x86/kernel/unwind_frame.c:234
Code: 80 e1 07 80 c1 03 38 c1 0f 8c 64 ff ff ff 48 89 df e8 d1 7a 7f 00 e9 57 ff ff ff 4c 89 e3 4d 8d 74 24 40 4d 89 f7 49 c1 ef 03 <48> b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 4c 89 f7 e8 d4
RSP: 0018:ffffc9000daceab8 EFLAGS: 00000a02
RAX: 0000000000000001 RBX: ffffc9000dacec08 RCX: ffffc9000dacef01
RDX: ffffc9000dacef10 RSI: 1ffff92001b59d82 RDI: ffffc9000dacec60
RBP: ffffc9000daceb78 R08: ffffc9000dacecd0 R09: ffffc9000dacecc8
R10: 0000000000000001 R11: 1ffff92001b59d81 R12: ffffc9000dacec08
R13: 0000000000000001 R14: ffffc9000dacec48 R15: 1ffff92001b59d89
unwind_next_frame+0x3d5/0x700 arch/x86/kernel/unwind_frame.c:315
arch_stack_walk+0x124/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
save_stack+0xf3/0x1e0 mm/page_owner.c:147
__set_page_owner+0x1f/0x60 mm/page_owner.c:210
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2643
prep_new_page+0x1c/0x110 mm/page_alloc.c:2650
get_page_from_freelist+0x2c7b/0x2cf0 mm/page_alloc.c:4554
__alloc_pages+0x1c3/0x450 mm/page_alloc.c:5868
__folio_alloc+0x12/0x40 mm/page_alloc.c:5900
__folio_alloc_node include/linux/gfp.h:245 [inline]
folio_alloc include/linux/gfp.h:274 [inline]
shmem_alloc_folio mm/shmem.c:1601 [inline]
shmem_alloc_and_acct_folio+0x650/0x870 mm/shmem.c:1626
shmem_get_folio_gfp+0x119f/0x2230 mm/shmem.c:1955
shmem_fault+0x1ae/0x650 mm/shmem.c:2170
__do_fault mm/memory.c:4373 [inline]
do_read_fault mm/memory.c:4739 [inline]
do_fault+0x1a6f/0x1df0 mm/memory.c:4875
handle_pte_fault mm/memory.c:5171 [inline]
__handle_mm_fault mm/memory.c:5313 [inline]
handle_mm_fault+0x12fa/0x2640 mm/memory.c:5453
faultin_page mm/gup.c:1026 [inline]
__get_user_pages+0x33d/0xd80 mm/gup.c:1250
populate_vma_page_range mm/gup.c:1607 [inline]
__mm_populate+0x2e4/0x420 mm/gup.c:1721
mm_populate include/linux/mm.h:3148 [inline]
vm_mmap_pgoff+0x268/0x3f0 mm/util.c:530
ksys_mmap_pgoff+0xf6/0x1d0 mm/mmap.c:1536
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:93 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__x64_sys_mmap+0xfa/0x110 arch/x86/kernel/sys_x86_64.c:86
x64_sys_call+0x8fd/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:10
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: 0033:0x7fd1a9f8f749
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:00007fd1aade4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fd1aa1e5fa0 RCX: 00007fd1a9f8f749
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fd1aa013f91 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd1aa1e6038 R14: 00007fd1aa1e5fa0 R15: 00007ffe3f104d98
Allocated by task 9204:
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:1505 [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 9204:
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:1750 [inline]
slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
slab_free mm/slub.c:3712 [inline]
__kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
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:1465 [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:2302
worker_thread+0xa29/0x11f0 kernel/workqueue.c:2449
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 ffff8881156ac000
which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2560 bytes inside of
8192-byte region [ffff8881156ac000, ffff8881156ae000)
The buggy address belongs to the physical page:
page:ffffea000455aa00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1156a8
head:ffffea000455aa00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffffea0004f4f400 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 7622, tgid 7621 (syz.0.1804), ts 553703662490, free_ts 553650854131
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2643
prep_new_page+0x1c/0x110 mm/page_alloc.c:2650
get_page_from_freelist+0x2c7b/0x2cf0 mm/page_alloc.c:4554
__alloc_pages+0x1c3/0x450 mm/page_alloc.c:5868
alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1
allocate_slab mm/slub.c:1967 [inline]
new_slab+0x98/0x3d0 mm/slub.c:2020
___slab_alloc+0x6bd/0xb20 mm/slub.c:3177
__slab_alloc+0x5e/0xa0 mm/slub.c:3263
slab_alloc_node mm/slub.c:3348 [inline]
__kmem_cache_alloc_node+0x203/0x2c0 mm/slub.c:3423
__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]
alloc_callchain_buffers kernel/events/callchain.c:90 [inline]
get_callchain_buffers+0x175/0x350 kernel/events/callchain.c:134
stack_map_alloc+0x379/0x530 kernel/bpf/stackmap.c:113
find_and_alloc_map kernel/bpf/syscall.c:133 [inline]
map_create+0x49c/0xd80 kernel/bpf/syscall.c:1126
__sys_bpf+0x30b/0x780 kernel/bpf/syscall.c:4984
__do_sys_bpf kernel/bpf/syscall.c:5106 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5104 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5104
x64_sys_call+0x488/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322
page last free stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1551 [inline]
free_pcp_prepare mm/page_alloc.c:1625 [inline]
free_unref_page_prepare+0x742/0x750 mm/page_alloc.c:3589
free_unref_page+0x8f/0x530 mm/page_alloc.c:3687
free_the_page mm/page_alloc.c:836 [inline]
__free_pages+0x67/0x100 mm/page_alloc.c:5957
__free_slab+0xca/0x1a0 mm/slub.c:2044
free_slab mm/slub.c:2059 [inline]
discard_slab+0x29/0x40 mm/slub.c:2065
__slab_free+0x201/0x280 mm/slub.c:3625
do_slab_free mm/slub.c:3666 [inline]
___cache_free+0xbf/0xd0 mm/slub.c:3722
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:3382 [inline]
kmem_cache_alloc_node+0x181/0x340 mm/slub.c:3429
__alloc_skb+0xea/0x4b0 net/core/skbuff.c:508
alloc_skb_fclone include/linux/skbuff.h:1340 [inline]
tipc_buf_acquire+0x2b/0xe0 net/tipc/msg.c:72
tipc_msg_build+0x550/0xfd0 net/tipc/msg.c:422
tipc_sendmcast net/tipc/socket.c:881 [inline]
__tipc_sendmsg+0x19dd/0x2680 net/tipc/socket.c:1469
Memory state around the buggy address:
ffff8881156ac900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881156ac980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881156aca00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8881156aca80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881156acb00: 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: 9333 Comm: syz.6.2239 Tainted: G B W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__queue_work+0x575/0xd30 kernel/workqueue.c:-1
Code: 39 2b 0f 84 b9 00 00 00 e8 78 e3 28 00 4c 89 ff e8 10 28 ad 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 cc 5b 6d 00 49 8b 7d 00 e8 f3 23
RSP: 0018:ffffc900001b0c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff8881146dbcc0
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc900001b0d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed1022ad5939 R11: 1ffff11022ad5939 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8881156ac9c8 R15: 0000000000000008
FS: 00007fd028cbe6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c32a6fa CR3: 0000000128811000 CR4: 00000000003506a0
Call Trace:
delayed_work_timer_fn+0x61/0x80 kernel/workqueue.c:1653
call_timer_fn+0x46/0x2a0 kernel/time/timer.c:1553
expire_timers kernel/time/timer.c:1599 [inline]
__run_timers+0x672/0x9b0 kernel/time/timer.c:1875
run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1888
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:console_emit_next_record+0x9e3/0xbc0 kernel/printk/printk.c:2797
Code: de 48 81 e6 00 02 00 00 31 ff e8 98 4a 19 00 48 81 e3 00 02 00 00 75 07 e8 ca 45 19 00 eb 06 e8 c3 45 19 00 fb 0f b6 5c 24 07 <48> c7 84 24 80 00 00 00 0e 36 e0 45 4b c7 04 2e 00 00 00 00 4b c7
RSP: 0018:ffffc9000db1f2c0 EFLAGS: 00000283
RAX: ffffffff8156e2ad RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000a2bc000 RSI: 00000000000274af RDI: 00000000000274b0
RBP: ffffc9000db1f4d0 R08: 0000000000000004 R09: 0000000000000003
R10: fffff52001b63e48 R11: 1ffff92001b63e48 R12: ffffc9000db1f51f
R13: dffffc0000000000 R14: 1ffff92001b63e68 R15: 0000000000000033
console_flush_all kernel/printk/printk.c:-1 [inline]
console_unlock+0x23d/0x550 kernel/printk/printk.c:2917
con_install+0x47e/0x700 drivers/tty/vt/vt.c:3411
tty_driver_install_tty drivers/tty/tty_io.c:1303 [inline]
tty_init_dev+0xde/0x4e0 drivers/tty/tty_io.c:1415
tty_open_by_driver drivers/tty/tty_io.c:2081 [inline]
tty_open+0x7c7/0x1110 drivers/tty/tty_io.c:2128
chrdev_open+0x5a5/0x680 fs/char_dev.c:414
do_dentry_open+0x88e/0x1260 fs/open.c:884
vfs_open+0x73/0x80 fs/open.c:1015
do_open fs/namei.c:3633 [inline]
path_openat+0x2681/0x2f50 fs/namei.c:3790
do_filp_open+0x1c1/0x3c0 fs/namei.c:3817
do_sys_openat2+0x185/0x7e0 fs/open.c:1341
do_sys_open fs/open.c:1357 [inline]
__do_sys_openat fs/open.c:1373 [inline]
__se_sys_openat fs/open.c:1368 [inline]
__x64_sys_openat+0x136/0x160 fs/open.c:1368
x64_sys_call+0x783/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
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: 0033:0x7fd027d8df90
Code: 48 89 44 24 20 75 93 44 89 54 24 0c e8 69 95 02 00 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 bc 95 02 00 8b 44
RSP: 002b:00007fd028cbdb70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd027d8df90
RDX: 0000000000000002 RSI: 00007fd028cbdc10 RDI: 00000000ffffff9c
RBP: 00007fd028cbdc10 R08: 0000000000000000 R09: 00007fd028cbd986
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fd027fe6218 R14: 00007fd027fe6180 R15: 00007ffdcce9ca38
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 78 e3 28 00 4c 89 ff e8 10 28 ad 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 cc 5b 6d 00 49 8b 7d 00 e8 f3 23
RSP: 0018:ffffc900001b0c70 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffff8881146dbcc0
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc900001b0d08 R08: fffffffffffffffb R09: 0000000000000007
R10: ffffed1022ad5939 R11: 1ffff11022ad5939 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8881156ac9c8 R15: 0000000000000008
FS: 00007fd028cbe6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c32a6fa CR3: 0000000128811000 CR4: 00000000003506a0
----------------
Code disassembly (best guess):
0: 80 e1 07 and $0x7,%cl
3: 80 c1 03 add $0x3,%cl
6: 38 c1 cmp %al,%cl
8: 0f 8c 64 ff ff ff jl 0xffffff72
e: 48 89 df mov %rbx,%rdi
11: e8 d1 7a 7f 00 call 0x7f7ae7
16: e9 57 ff ff ff jmp 0xffffff72
1b: 4c 89 e3 mov %r12,%rbx
1e: 4d 8d 74 24 40 lea 0x40(%r12),%r14
23: 4d 89 f7 mov %r14,%r15
26: 49 c1 ef 03 shr $0x3,%r15
* 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction
31: fc ff df
34: 41 80 3c 07 00 cmpb $0x0,(%r15,%rax,1)
39: 74 08 je 0x43
3b: 4c 89 f7 mov %r14,%rdi
3e: e8 .byte 0xe8
3f: d4 (bad)