==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline]
BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:169 [inline]
BUG: KASAN: use-after-free in mutex_lock+0x88/0x1a0 kernel/locking/mutex.c:288
Write of size 8 at addr ffff88812ad34050 by task acpid/86

CPU: 0 PID: 86 Comm: acpid Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0xf1/0x140 mm/kasan/report.c:444
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x280/0x290 mm/kasan/generic.c:189
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline]
 __mutex_trylock_fast kernel/locking/mutex.c:169 [inline]
 mutex_lock+0x88/0x1a0 kernel/locking/mutex.c:288
 steam_input_open+0x91/0x160 drivers/hid/hid-steam.c:297
 input_open_device+0x16d/0x2f0 drivers/input/input.c:640
 evdev_open_device drivers/input/evdev.c:404 [inline]
 evdev_open+0x4b1/0x5c0 drivers/input/evdev.c:491
 chrdev_open+0x597/0x670 fs/char_dev.c:414
 do_dentry_open+0x834/0x1010 fs/open.c:828
 vfs_open+0x73/0x80 fs/open.c:958
 do_open fs/namei.c:3608 [inline]
 path_openat+0x2646/0x2f10 fs/namei.c:3742
 do_filp_open+0x1b3/0x3e0 fs/namei.c:3769
 do_sys_openat2+0x14c/0x7b0 fs/open.c:1234
 do_sys_open fs/open.c:1250 [inline]
 __do_sys_openat fs/open.c:1266 [inline]
 __se_sys_openat fs/open.c:1261 [inline]
 __x64_sys_openat+0x136/0x160 fs/open.c:1261
 x64_sys_call+0x219/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f167df31407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffce2443980 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f167dea7740 RCX: 00007f167df31407
RDX: 0000000000080800 RSI: 00007ffce2443b90 RDI: ffffffffffffff9c
RBP: 00007ffce2443b90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000020
R13: 00007ffce2443c90 R14: 000055e71cee47fe R15: 00007ffce2443c90
 </TASK>

Allocated by task 4108:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc mm/kasan/common.c:512 [inline]
 __kasan_kmalloc+0xda/0x110 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 __kmalloc_track_caller+0x13c/0x2c0 mm/slub.c:4959
 alloc_dr drivers/base/devres.c:116 [inline]
 devm_kmalloc+0x50/0x150 drivers/base/devres.c:831
 devm_kzalloc include/linux/device.h:209 [inline]
 steam_probe+0x129/0xb10 drivers/hid/hid-steam.c:741
 hid_device_probe+0x287/0x380 drivers/hid/hid-core.c:2312
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x285/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x175/0x200 drivers/base/bus.c:429
 __device_attach+0x2a2/0x400 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xb31/0xed0 drivers/base/core.c:3422
 hid_add_device+0x356/0x4b0 drivers/hid/hid-core.c:2462
 usbhid_probe+0xb2e/0xee0 drivers/hid/usbhid/hid-core.c:1427
 usb_probe_interface+0x5ff/0xae0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x285/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x175/0x200 drivers/base/bus.c:429
 __device_attach+0x2a2/0x400 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xb31/0xed0 drivers/base/core.c:3422
 usb_set_configuration+0x19c2/0x1f10 drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x148/0x260 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x285/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x175/0x200 drivers/base/bus.c:429
 __device_attach+0x2a2/0x400 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xb31/0xed0 drivers/base/core.c:3422
 usb_new_device+0xd06/0x1620 drivers/usb/core/hub.c:2638
 hub_port_connect drivers/usb/core/hub.c:5555 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5695 [inline]
 port_event drivers/usb/core/hub.c:5861 [inline]
 hub_event+0x29c4/0x4480 drivers/usb/core/hub.c:5943
 process_one_work+0x6be/0xba0 kernel/workqueue.c:2325
 worker_thread+0xa59/0x1200 kernel/workqueue.c:2472
 kthread+0x411/0x500 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

Freed by task 12258:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4a/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:365
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
 kasan_slab_free include/linux/kasan.h:193 [inline]
 slab_free_hook mm/slub.c:1728 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1754
 slab_free mm/slub.c:3526 [inline]
 kfree+0xc4/0x270 mm/slub.c:4588
 release_nodes+0xe8/0x220 drivers/base/devres.c:501
 devres_release_all+0x149/0x1b0 drivers/base/devres.c:530
 __device_release_driver drivers/base/dd.c:1231 [inline]
 device_release_driver_internal+0x4d0/0x760 drivers/base/dd.c:1262
 device_release_driver+0x19/0x20 drivers/base/dd.c:1285
 bus_remove_device+0x2dd/0x340 drivers/base/bus.c:531
 device_del+0x696/0xe90 drivers/base/core.c:3610
 hid_remove_device drivers/hid/hid-core.c:2510 [inline]
 hid_destroy_device+0x6a/0x110 drivers/hid/hid-core.c:2529
 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1454
 usb_unbind_interface+0x212/0x8c0 drivers/usb/core/driver.c:458
 __device_release_driver drivers/base/dd.c:1229 [inline]
 device_release_driver_internal+0x4c1/0x760 drivers/base/dd.c:1262
 device_release_driver+0x19/0x20 drivers/base/dd.c:1285
 bus_remove_device+0x2dd/0x340 drivers/base/bus.c:531
 device_del+0x696/0xe90 drivers/base/core.c:3610
 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1414
 usb_disconnect+0x31e/0x850 drivers/usb/core/hub.c:2288
 hub_port_connect drivers/usb/core/hub.c:5394 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5695 [inline]
 port_event drivers/usb/core/hub.c:5861 [inline]
 hub_event+0x1a96/0x4480 drivers/usb/core/hub.c:5943
 process_one_work+0x6be/0xba0 kernel/workqueue.c:2325
 worker_thread+0xa59/0x1200 kernel/workqueue.c:2472
 kthread+0x411/0x500 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 insert_work+0x51/0x310 kernel/workqueue.c:1373
 __queue_work+0x8e5/0xc60 kernel/workqueue.c:1539
 queue_work_on+0xd2/0x140 kernel/workqueue.c:1566
 queue_work include/linux/workqueue.h:510 [inline]
 schedule_work include/linux/workqueue.h:571 [inline]
 __bpf_map_put kernel/bpf/syscall.c:502 [inline]
 bpf_map_put+0x1cf/0x240 kernel/bpf/syscall.c:508
 __bpf_free_used_maps kernel/bpf/core.c:2242 [inline]
 bpf_free_used_maps kernel/bpf/core.c:2248 [inline]
 bpf_prog_free_deferred+0x135/0x6d0 kernel/bpf/core.c:2280
 process_one_work+0x6be/0xba0 kernel/workqueue.c:2325
 worker_thread+0xa59/0x1200 kernel/workqueue.c:2472
 kthread+0x411/0x500 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

Second to last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 kvfree_call_rcu+0xae/0x7e0 kernel/rcu/tree.c:3648
 neigh_destroy+0x44f/0x590 net/core/neighbour.c:860
 neigh_release include/net/neighbour.h:427 [inline]
 neigh_cleanup_and_release+0x76/0x1a0 net/core/neighbour.c:103
 neigh_periodic_work+0x889/0xa80 net/core/neighbour.c:947
 process_one_work+0x6be/0xba0 kernel/workqueue.c:2325
 worker_thread+0xa59/0x1200 kernel/workqueue.c:2472
 kthread+0x411/0x500 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

The buggy address belongs to the object at ffff88812ad34000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 80 bytes inside of
 512-byte region [ffff88812ad34000, ffff88812ad34200)
The buggy address belongs to the page:
page:ffffea0004ab4d00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12ad34
head:ffffea0004ab4d00 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 0000000000000000 0000000600000001 ffff888100042f00
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 60, ts 30887143651, free_ts 30182559013
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2605
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2611
 get_page_from_freelist+0x2cc5/0x2d50 mm/page_alloc.c:4485
 __alloc_pages+0x18f/0x440 mm/page_alloc.c:5808
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1937 [inline]
 new_slab+0xa1/0x4d0 mm/slub.c:2000
 ___slab_alloc+0x381/0x810 mm/slub.c:3033
 __slab_alloc+0x49/0x90 mm/slub.c:3120
 slab_alloc_node mm/slub.c:3211 [inline]
 slab_alloc mm/slub.c:3255 [inline]
 __kmalloc_track_caller+0x169/0x2c0 mm/slub.c:4954
 kmalloc_reserve net/core/skbuff.c:357 [inline]
 __alloc_skb+0x21a/0x740 net/core/skbuff.c:428
 alloc_skb include/linux/skbuff.h:1183 [inline]
 ndisc_alloc_skb net/ipv6/ndisc.c:422 [inline]
 ndisc_send_rs+0x2ce/0x960 net/ipv6/ndisc.c:691
 addrconf_dad_completed+0x970/0xe70 net/ipv6/addrconf.c:4299
 addrconf_dad_work+0xc72/0x1540 net/ipv6/addrconf.c:-1
 process_one_work+0x6be/0xba0 kernel/workqueue.c:2325
 worker_thread+0xa59/0x1200 kernel/workqueue.c:2472
 kthread+0x411/0x500 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1472 [inline]
 __free_pages_ok+0x91a/0x9e0 mm/page_alloc.c:1772
 free_the_page mm/page_alloc.c:807 [inline]
 __free_pages+0xf6/0x100 mm/page_alloc.c:5884
 free_nonslab_page+0x86/0xc0 mm/slub.c:3564
 kfree+0x19a/0x270 mm/slub.c:4585
 kvfree+0x35/0x40 mm/util.c:661
 kvm_free_memslots virt/kvm/kvm_main.c:950 [inline]
 kvm_destroy_vm virt/kvm/kvm_main.c:1254 [inline]
 kvm_put_kvm+0xf99/0x11c0 virt/kvm/kvm_main.c:1283
 kvm_vm_release+0x46/0x50 virt/kvm/kvm_main.c:1306
 __fput+0x20b/0x8b0 fs/file_table.c:311
 ____fput+0x15/0x20 fs/file_table.c:339
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Memory state around the buggy address:
 ffff88812ad33f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88812ad33f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88812ad34000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                 ^
 ffff88812ad34080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88812ad34100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.002E: No HID_FEATURE_REPORT submitted -  nothing to read