vhci_hcd vhci_hcd.0: release socket
vhci_hcd vhci_hcd.0: disconnect device
vhci_hcd vhci_hcd.0: stop threads
vhci_hcd vhci_hcd.0: release socket
==================================================================
BUG: KASAN: slab-use-after-free in vdev_to_vhci_hcd drivers/usb/usbip/vhci.h:171 [inline]
BUG: KASAN: slab-use-after-free in vhci_cleanup_unlink_list+0x44/0x456 drivers/usb/usbip/vhci_hcd.c:985
Read of size 4 at addr ffff888028c586a0 by task kworker/u8:17/6155

CPU: 0 UID: 0 PID: 6155 Comm: kworker/u8:17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Workqueue: usbip_event event_handler
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 vdev_to_vhci_hcd drivers/usb/usbip/vhci.h:171 [inline]
 vhci_cleanup_unlink_list+0x44/0x456 drivers/usb/usbip/vhci_hcd.c:985
 vhci_device_unlink_cleanup drivers/usb/usbip/vhci_hcd.c:1028 [inline]
 vhci_shutdown_connection.cold+0x165/0x37c drivers/usb/usbip/vhci_hcd.c:1069
 event_handler+0x216/0x570 drivers/usb/usbip/usbip_event.c:79
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5334 [inline]
 __kmalloc_noprof+0x322/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 __usb_create_hcd+0x5e/0xac0 drivers/usb/core/hcd.c:2566
 vhci_hcd_probe+0x1a5/0x4e0 drivers/usb/usbip/vhci_hcd.c:1394
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 7312:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2677 [inline]
 slab_free mm/slub.c:6377 [inline]
 kfree+0x22b/0x6c0 mm/slub.c:6692
 hcd_release drivers/usb/core/hcd.c:2690 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_put_hcd drivers/usb/core/hcd.c:2704 [inline]
 usb_put_hcd+0x149/0x1f0 drivers/usb/core/hcd.c:2701
 vhci_hcd_remove+0xb5/0x1b0 drivers/usb/usbip/vhci_hcd.c:1431
 platform_remove+0x5f/0x80 drivers/base/platform.c:1456
 device_remove+0xcb/0x180 drivers/base/dd.c:616
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 unbind_store+0xf8/0x110 drivers/base/bus.c:244
 drv_attr_store+0x74/0xb0 drivers/base/bus.c:125
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x330/0x4a0 drivers/usb/core/hcd.c:1758
 usb_rh_urb_dequeue drivers/usb/core/hcd.c:845 [inline]
 unlink1+0x418/0x510 drivers/usb/core/hcd.c:1580
 usb_hcd_unlink_urb+0x131/0x210 drivers/usb/core/hcd.c:1617
 usb_kill_urb drivers/usb/core/urb.c:716 [inline]
 usb_kill_urb+0x121/0x320 drivers/usb/core/urb.c:703
 hub_quiesce+0x1e9/0x320 drivers/usb/core/hub.c:1412
 hub_suspend+0x4ab/0x9e0 drivers/usb/core/hub.c:4008
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Second to last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x3b8/0x4a0 drivers/usb/core/hcd.c:1760
 rh_call_control drivers/usb/core/hcd.c:706 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:817 [inline]
 usb_hcd_submit_urb+0xab7/0x2150 drivers/usb/core/hcd.c:1538
 usb_submit_urb+0x827/0x19b0 drivers/usb/core/urb.c:586
 usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62
 usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
 usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167
 set_port_feature drivers/usb/core/hub.c:466 [inline]
 hub_suspend+0x826/0x9e0 drivers/usb/core/hub.c:3996
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888028c58000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 1696 bytes inside of
 freed 8192-byte region [ffff888028c58000, ffff888028c5a000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28c58
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
head: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 6303220528, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3266 [inline]
 allocate_slab mm/slub.c:3380 [inline]
 new_slab+0xa2/0x640 mm/slub.c:3426
 refill_objects+0xe3/0x410 mm/slub.c:7310
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4675
 alloc_from_pcs mm/slub.c:4773 [inline]
 slab_alloc_node mm/slub.c:4905 [inline]
 __do_kmalloc_node mm/slub.c:5333 [inline]
 __kmalloc_noprof+0x66d/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 scsi_host_alloc+0x30/0x1380 drivers/scsi/hosts.c:412
 virtscsi_probe+0x21f/0xf80 drivers/scsi/virtio_scsi.c:931
 virtio_dev_probe+0x6a2/0xbe0 drivers/virtio/virtio.c:347
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888028c58580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888028c58680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                               ^
 ffff888028c58700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in vhci_cleanup_unlink_list+0x85/0x456 drivers/usb/usbip/vhci_hcd.c:987
Read of size 8 at addr ffff888028c58400 by task kworker/u8:17/6155

CPU: 0 UID: 0 PID: 6155 Comm: kworker/u8:17 Tainted: G    B               syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Workqueue: usbip_event event_handler
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 vhci_cleanup_unlink_list+0x85/0x456 drivers/usb/usbip/vhci_hcd.c:987
 vhci_device_unlink_cleanup drivers/usb/usbip/vhci_hcd.c:1028 [inline]
 vhci_shutdown_connection.cold+0x165/0x37c drivers/usb/usbip/vhci_hcd.c:1069
 event_handler+0x216/0x570 drivers/usb/usbip/usbip_event.c:79
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5334 [inline]
 __kmalloc_noprof+0x322/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 __usb_create_hcd+0x5e/0xac0 drivers/usb/core/hcd.c:2566
 vhci_hcd_probe+0x1a5/0x4e0 drivers/usb/usbip/vhci_hcd.c:1394
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 7312:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2677 [inline]
 slab_free mm/slub.c:6377 [inline]
 kfree+0x22b/0x6c0 mm/slub.c:6692
 hcd_release drivers/usb/core/hcd.c:2690 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_put_hcd drivers/usb/core/hcd.c:2704 [inline]
 usb_put_hcd+0x149/0x1f0 drivers/usb/core/hcd.c:2701
 vhci_hcd_remove+0xb5/0x1b0 drivers/usb/usbip/vhci_hcd.c:1431
 platform_remove+0x5f/0x80 drivers/base/platform.c:1456
 device_remove+0xcb/0x180 drivers/base/dd.c:616
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 unbind_store+0xf8/0x110 drivers/base/bus.c:244
 drv_attr_store+0x74/0xb0 drivers/base/bus.c:125
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x330/0x4a0 drivers/usb/core/hcd.c:1758
 usb_rh_urb_dequeue drivers/usb/core/hcd.c:845 [inline]
 unlink1+0x418/0x510 drivers/usb/core/hcd.c:1580
 usb_hcd_unlink_urb+0x131/0x210 drivers/usb/core/hcd.c:1617
 usb_kill_urb drivers/usb/core/urb.c:716 [inline]
 usb_kill_urb+0x121/0x320 drivers/usb/core/urb.c:703
 hub_quiesce+0x1e9/0x320 drivers/usb/core/hub.c:1412
 hub_suspend+0x4ab/0x9e0 drivers/usb/core/hub.c:4008
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Second to last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x3b8/0x4a0 drivers/usb/core/hcd.c:1760
 rh_call_control drivers/usb/core/hcd.c:706 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:817 [inline]
 usb_hcd_submit_urb+0xab7/0x2150 drivers/usb/core/hcd.c:1538
 usb_submit_urb+0x827/0x19b0 drivers/usb/core/urb.c:586
 usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62
 usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
 usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167
 set_port_feature drivers/usb/core/hub.c:466 [inline]
 hub_suspend+0x826/0x9e0 drivers/usb/core/hub.c:3996
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888028c58000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 1024 bytes inside of
 freed 8192-byte region [ffff888028c58000, ffff888028c5a000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28c58
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
head: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 6303220528, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3266 [inline]
 allocate_slab mm/slub.c:3380 [inline]
 new_slab+0xa2/0x640 mm/slub.c:3426
 refill_objects+0xe3/0x410 mm/slub.c:7310
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4675
 alloc_from_pcs mm/slub.c:4773 [inline]
 slab_alloc_node mm/slub.c:4905 [inline]
 __do_kmalloc_node mm/slub.c:5333 [inline]
 __kmalloc_noprof+0x66d/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 scsi_host_alloc+0x30/0x1380 drivers/scsi/hosts.c:412
 virtscsi_probe+0x21f/0xf80 drivers/scsi/virtio_scsi.c:931
 virtio_dev_probe+0x6a2/0xbe0 drivers/virtio/virtio.c:347
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888028c58300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888028c58400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888028c58480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline]
BUG: KASAN: slab-use-after-free in do_raw_spin_lock+0x23b/0x260 kernel/locking/spinlock_debug.c:115
Read of size 4 at addr ffff888028c58814 by task kworker/u8:17/6155

CPU: 0 UID: 0 PID: 6155 Comm: kworker/u8:17 Tainted: G    B               syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Workqueue: usbip_event event_handler
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline]
 do_raw_spin_lock+0x23b/0x260 kernel/locking/spinlock_debug.c:115
 spin_lock include/linux/spinlock.h:342 [inline]
 vhci_cleanup_unlink_list+0xb1/0x456 drivers/usb/usbip/vhci_hcd.c:992
 vhci_device_unlink_cleanup drivers/usb/usbip/vhci_hcd.c:1028 [inline]
 vhci_shutdown_connection.cold+0x165/0x37c drivers/usb/usbip/vhci_hcd.c:1069
 event_handler+0x216/0x570 drivers/usb/usbip/usbip_event.c:79
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5334 [inline]
 __kmalloc_noprof+0x322/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 __usb_create_hcd+0x5e/0xac0 drivers/usb/core/hcd.c:2566
 vhci_hcd_probe+0x1a5/0x4e0 drivers/usb/usbip/vhci_hcd.c:1394
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 7312:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2677 [inline]
 slab_free mm/slub.c:6377 [inline]
 kfree+0x22b/0x6c0 mm/slub.c:6692
 hcd_release drivers/usb/core/hcd.c:2690 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_put_hcd drivers/usb/core/hcd.c:2704 [inline]
 usb_put_hcd+0x149/0x1f0 drivers/usb/core/hcd.c:2701
 vhci_hcd_remove+0xb5/0x1b0 drivers/usb/usbip/vhci_hcd.c:1431
 platform_remove+0x5f/0x80 drivers/base/platform.c:1456
 device_remove+0xcb/0x180 drivers/base/dd.c:616
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 unbind_store+0xf8/0x110 drivers/base/bus.c:244
 drv_attr_store+0x74/0xb0 drivers/base/bus.c:125
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x330/0x4a0 drivers/usb/core/hcd.c:1758
 usb_rh_urb_dequeue drivers/usb/core/hcd.c:845 [inline]
 unlink1+0x418/0x510 drivers/usb/core/hcd.c:1580
 usb_hcd_unlink_urb+0x131/0x210 drivers/usb/core/hcd.c:1617
 usb_kill_urb drivers/usb/core/urb.c:716 [inline]
 usb_kill_urb+0x121/0x320 drivers/usb/core/urb.c:703
 hub_quiesce+0x1e9/0x320 drivers/usb/core/hub.c:1412
 hub_suspend+0x4ab/0x9e0 drivers/usb/core/hub.c:4008
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Second to last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x3b8/0x4a0 drivers/usb/core/hcd.c:1760
 rh_call_control drivers/usb/core/hcd.c:706 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:817 [inline]
 usb_hcd_submit_urb+0xab7/0x2150 drivers/usb/core/hcd.c:1538
 usb_submit_urb+0x827/0x19b0 drivers/usb/core/urb.c:586
 usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62
 usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
 usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167
 set_port_feature drivers/usb/core/hub.c:466 [inline]
 hub_suspend+0x826/0x9e0 drivers/usb/core/hub.c:3996
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888028c58000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2068 bytes inside of
 freed 8192-byte region [ffff888028c58000, ffff888028c5a000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28c58
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
head: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 6303220528, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3266 [inline]
 allocate_slab mm/slub.c:3380 [inline]
 new_slab+0xa2/0x640 mm/slub.c:3426
 refill_objects+0xe3/0x410 mm/slub.c:7310
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4675
 alloc_from_pcs mm/slub.c:4773 [inline]
 slab_alloc_node mm/slub.c:4905 [inline]
 __do_kmalloc_node mm/slub.c:5333 [inline]
 __kmalloc_noprof+0x66d/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 scsi_host_alloc+0x30/0x1380 drivers/scsi/hosts.c:412
 virtscsi_probe+0x21f/0xf80 drivers/scsi/virtio_scsi.c:931
 virtio_dev_probe+0x6a2/0xbe0 drivers/virtio/virtio.c:347
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888028c58700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888028c58800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff888028c58880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in debug_spin_lock_before kernel/locking/spinlock_debug.c:87 [inline]
BUG: KASAN: slab-use-after-free in do_raw_spin_lock+0x248/0x260 kernel/locking/spinlock_debug.c:115
Read of size 8 at addr ffff888028c58820 by task kworker/u8:17/6155

CPU: 0 UID: 0 PID: 6155 Comm: kworker/u8:17 Tainted: G    B               syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Workqueue: usbip_event event_handler
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 debug_spin_lock_before kernel/locking/spinlock_debug.c:87 [inline]
 do_raw_spin_lock+0x248/0x260 kernel/locking/spinlock_debug.c:115
 spin_lock include/linux/spinlock.h:342 [inline]
 vhci_cleanup_unlink_list+0xb1/0x456 drivers/usb/usbip/vhci_hcd.c:992
 vhci_device_unlink_cleanup drivers/usb/usbip/vhci_hcd.c:1028 [inline]
 vhci_shutdown_connection.cold+0x165/0x37c drivers/usb/usbip/vhci_hcd.c:1069
 event_handler+0x216/0x570 drivers/usb/usbip/usbip_event.c:79
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5334 [inline]
 __kmalloc_noprof+0x322/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 __usb_create_hcd+0x5e/0xac0 drivers/usb/core/hcd.c:2566
 vhci_hcd_probe+0x1a5/0x4e0 drivers/usb/usbip/vhci_hcd.c:1394
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 7312:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2677 [inline]
 slab_free mm/slub.c:6377 [inline]
 kfree+0x22b/0x6c0 mm/slub.c:6692
 hcd_release drivers/usb/core/hcd.c:2690 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_put_hcd drivers/usb/core/hcd.c:2704 [inline]
 usb_put_hcd+0x149/0x1f0 drivers/usb/core/hcd.c:2701
 vhci_hcd_remove+0xb5/0x1b0 drivers/usb/usbip/vhci_hcd.c:1431
 platform_remove+0x5f/0x80 drivers/base/platform.c:1456
 device_remove+0xcb/0x180 drivers/base/dd.c:616
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 unbind_store+0xf8/0x110 drivers/base/bus.c:244
 drv_attr_store+0x74/0xb0 drivers/base/bus.c:125
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x330/0x4a0 drivers/usb/core/hcd.c:1758
 usb_rh_urb_dequeue drivers/usb/core/hcd.c:845 [inline]
 unlink1+0x418/0x510 drivers/usb/core/hcd.c:1580
 usb_hcd_unlink_urb+0x131/0x210 drivers/usb/core/hcd.c:1617
 usb_kill_urb drivers/usb/core/urb.c:716 [inline]
 usb_kill_urb+0x121/0x320 drivers/usb/core/urb.c:703
 hub_quiesce+0x1e9/0x320 drivers/usb/core/hub.c:1412
 hub_suspend+0x4ab/0x9e0 drivers/usb/core/hub.c:4008
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Second to last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x3b8/0x4a0 drivers/usb/core/hcd.c:1760
 rh_call_control drivers/usb/core/hcd.c:706 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:817 [inline]
 usb_hcd_submit_urb+0xab7/0x2150 drivers/usb/core/hcd.c:1538
 usb_submit_urb+0x827/0x19b0 drivers/usb/core/urb.c:586
 usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62
 usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
 usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167
 set_port_feature drivers/usb/core/hub.c:466 [inline]
 hub_suspend+0x826/0x9e0 drivers/usb/core/hub.c:3996
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888028c58000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2080 bytes inside of
 freed 8192-byte region [ffff888028c58000, ffff888028c5a000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28c58
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
head: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 6303220528, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3266 [inline]
 allocate_slab mm/slub.c:3380 [inline]
 new_slab+0xa2/0x640 mm/slub.c:3426
 refill_objects+0xe3/0x410 mm/slub.c:7310
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4675
 alloc_from_pcs mm/slub.c:4773 [inline]
 slab_alloc_node mm/slub.c:4905 [inline]
 __do_kmalloc_node mm/slub.c:5333 [inline]
 __kmalloc_noprof+0x66d/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 scsi_host_alloc+0x30/0x1380 drivers/scsi/hosts.c:412
 virtscsi_probe+0x21f/0xf80 drivers/scsi/virtio_scsi.c:931
 virtio_dev_probe+0x6a2/0xbe0 drivers/virtio/virtio.c:347
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888028c58700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888028c58800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                               ^
 ffff888028c58880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in debug_spin_lock_before kernel/locking/spinlock_debug.c:88 [inline]
BUG: KASAN: slab-use-after-free in do_raw_spin_lock+0x231/0x260 kernel/locking/spinlock_debug.c:115
Read of size 4 at addr ffff888028c58818 by task kworker/u8:17/6155

CPU: 0 UID: 0 PID: 6155 Comm: kworker/u8:17 Tainted: G    B               syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Workqueue: usbip_event event_handler
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 debug_spin_lock_before kernel/locking/spinlock_debug.c:88 [inline]
 do_raw_spin_lock+0x231/0x260 kernel/locking/spinlock_debug.c:115
 spin_lock include/linux/spinlock.h:342 [inline]
 vhci_cleanup_unlink_list+0xb1/0x456 drivers/usb/usbip/vhci_hcd.c:992
 vhci_device_unlink_cleanup drivers/usb/usbip/vhci_hcd.c:1028 [inline]
 vhci_shutdown_connection.cold+0x165/0x37c drivers/usb/usbip/vhci_hcd.c:1069
 event_handler+0x216/0x570 drivers/usb/usbip/usbip_event.c:79
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5334 [inline]
 __kmalloc_noprof+0x322/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 __usb_create_hcd+0x5e/0xac0 drivers/usb/core/hcd.c:2566
 vhci_hcd_probe+0x1a5/0x4e0 drivers/usb/usbip/vhci_hcd.c:1394
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 7312:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2677 [inline]
 slab_free mm/slub.c:6377 [inline]
 kfree+0x22b/0x6c0 mm/slub.c:6692
 hcd_release drivers/usb/core/hcd.c:2690 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_put_hcd drivers/usb/core/hcd.c:2704 [inline]
 usb_put_hcd+0x149/0x1f0 drivers/usb/core/hcd.c:2701
 vhci_hcd_remove+0xb5/0x1b0 drivers/usb/usbip/vhci_hcd.c:1431
 platform_remove+0x5f/0x80 drivers/base/platform.c:1456
 device_remove+0xcb/0x180 drivers/base/dd.c:616
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 unbind_store+0xf8/0x110 drivers/base/bus.c:244
 drv_attr_store+0x74/0xb0 drivers/base/bus.c:125
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x330/0x4a0 drivers/usb/core/hcd.c:1758
 usb_rh_urb_dequeue drivers/usb/core/hcd.c:845 [inline]
 unlink1+0x418/0x510 drivers/usb/core/hcd.c:1580
 usb_hcd_unlink_urb+0x131/0x210 drivers/usb/core/hcd.c:1617
 usb_kill_urb drivers/usb/core/urb.c:716 [inline]
 usb_kill_urb+0x121/0x320 drivers/usb/core/urb.c:703
 hub_quiesce+0x1e9/0x320 drivers/usb/core/hub.c:1412
 hub_suspend+0x4ab/0x9e0 drivers/usb/core/hub.c:4008
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Second to last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x3b8/0x4a0 drivers/usb/core/hcd.c:1760
 rh_call_control drivers/usb/core/hcd.c:706 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:817 [inline]
 usb_hcd_submit_urb+0xab7/0x2150 drivers/usb/core/hcd.c:1538
 usb_submit_urb+0x827/0x19b0 drivers/usb/core/urb.c:586
 usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62
 usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
 usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167
 set_port_feature drivers/usb/core/hub.c:466 [inline]
 hub_suspend+0x826/0x9e0 drivers/usb/core/hub.c:3996
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888028c58000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2072 bytes inside of
 freed 8192-byte region [ffff888028c58000, ffff888028c5a000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28c58
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
head: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 6303220528, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3266 [inline]
 allocate_slab mm/slub.c:3380 [inline]
 new_slab+0xa2/0x640 mm/slub.c:3426
 refill_objects+0xe3/0x410 mm/slub.c:7310
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4675
 alloc_from_pcs mm/slub.c:4773 [inline]
 slab_alloc_node mm/slub.c:4905 [inline]
 __do_kmalloc_node mm/slub.c:5333 [inline]
 __kmalloc_noprof+0x66d/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 scsi_host_alloc+0x30/0x1380 drivers/scsi/hosts.c:412
 virtscsi_probe+0x21f/0xf80 drivers/scsi/virtio_scsi.c:931
 virtio_dev_probe+0x6a2/0xbe0 drivers/virtio/virtio.c:347
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888028c58700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888028c58800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff888028c58880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:112 [inline]
BUG: KASAN: slab-use-after-free in atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1300 [inline]
BUG: KASAN: slab-use-after-free in queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
BUG: KASAN: slab-use-after-free in do_raw_spin_lock+0x119/0x260 kernel/locking/spinlock_debug.c:116
Write of size 4 at addr ffff888028c58810 by task kworker/u8:17/6155

CPU: 0 UID: 0 PID: 6155 Comm: kworker/u8:17 Tainted: G    B               syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Workqueue: usbip_event event_handler
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 check_region_inline mm/kasan/generic.c:186 [inline]
 kasan_check_range+0x10f/0x1e0 mm/kasan/generic.c:200
 instrument_atomic_read_write include/linux/instrumented.h:112 [inline]
 atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1300 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
 do_raw_spin_lock+0x119/0x260 kernel/locking/spinlock_debug.c:116
 spin_lock include/linux/spinlock.h:342 [inline]
 vhci_cleanup_unlink_list+0xb1/0x456 drivers/usb/usbip/vhci_hcd.c:992
 vhci_device_unlink_cleanup drivers/usb/usbip/vhci_hcd.c:1028 [inline]
 vhci_shutdown_connection.cold+0x165/0x37c drivers/usb/usbip/vhci_hcd.c:1069
 event_handler+0x216/0x570 drivers/usb/usbip/usbip_event.c:79
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5334 [inline]
 __kmalloc_noprof+0x322/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 __usb_create_hcd+0x5e/0xac0 drivers/usb/core/hcd.c:2566
 vhci_hcd_probe+0x1a5/0x4e0 drivers/usb/usbip/vhci_hcd.c:1394
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 7312:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2677 [inline]
 slab_free mm/slub.c:6377 [inline]
 kfree+0x22b/0x6c0 mm/slub.c:6692
 hcd_release drivers/usb/core/hcd.c:2690 [inline]
 kref_put include/linux/kref.h:65 [inline]
 usb_put_hcd drivers/usb/core/hcd.c:2704 [inline]
 usb_put_hcd+0x149/0x1f0 drivers/usb/core/hcd.c:2701
 vhci_hcd_remove+0xb5/0x1b0 drivers/usb/usbip/vhci_hcd.c:1431
 platform_remove+0x5f/0x80 drivers/base/platform.c:1456
 device_remove+0xcb/0x180 drivers/base/dd.c:616
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 unbind_store+0xf8/0x110 drivers/base/bus.c:244
 drv_attr_store+0x74/0xb0 drivers/base/bus.c:125
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1050 fs/read_write.c:687
 ksys_write+0x12a/0x250 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x330/0x4a0 drivers/usb/core/hcd.c:1758
 usb_rh_urb_dequeue drivers/usb/core/hcd.c:845 [inline]
 unlink1+0x418/0x510 drivers/usb/core/hcd.c:1580
 usb_hcd_unlink_urb+0x131/0x210 drivers/usb/core/hcd.c:1617
 usb_kill_urb drivers/usb/core/urb.c:716 [inline]
 usb_kill_urb+0x121/0x320 drivers/usb/core/urb.c:703
 hub_quiesce+0x1e9/0x320 drivers/usb/core/hub.c:1412
 hub_suspend+0x4ab/0x9e0 drivers/usb/core/hub.c:4008
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Second to last potentially related work creation:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
 insert_work+0x36/0x230 kernel/workqueue.c:2226
 __queue_work+0x9bc/0x12b0 kernel/workqueue.c:2401
 queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2452
 queue_work include/linux/workqueue.h:699 [inline]
 usb_hcd_giveback_urb+0x3b8/0x4a0 drivers/usb/core/hcd.c:1760
 rh_call_control drivers/usb/core/hcd.c:706 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:817 [inline]
 usb_hcd_submit_urb+0xab7/0x2150 drivers/usb/core/hcd.c:1538
 usb_submit_urb+0x827/0x19b0 drivers/usb/core/urb.c:586
 usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62
 usb_internal_control_msg drivers/usb/core/message.c:117 [inline]
 usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167
 set_port_feature drivers/usb/core/hub.c:466 [inline]
 hub_suspend+0x826/0x9e0 drivers/usb/core/hub.c:3996
 usb_suspend_interface drivers/usb/core/driver.c:1323 [inline]
 usb_suspend_both+0x288/0x950 drivers/usb/core/driver.c:1446
 usb_runtime_suspend+0x49/0x120 drivers/usb/core/driver.c:2000
 __rpm_callback+0xc8/0x620 drivers/base/power/runtime.c:406
 rpm_callback+0x16a/0x1b0 drivers/base/power/runtime.c:460
 rpm_suspend+0x2f4/0x11a0 drivers/base/power/runtime.c:698
 __pm_runtime_suspend+0xba/0x1a0 drivers/base/power/runtime.c:1167
 pm_runtime_put_sync_autosuspend include/linux/pm_runtime.h:740 [inline]
 usb_new_device.cold+0xd61/0x115c drivers/usb/core/hub.c:2727
 register_root_hub+0x4e6/0x639 drivers/usb/core/hcd.c:990
 usb_add_hcd.cold+0xccd/0x1158 drivers/usb/core/hcd.c:2987
 vhci_hcd_probe+0x1c2/0x4e0 drivers/usb/usbip/vhci_hcd.c:1401
 platform_probe+0x106/0x1d0 drivers/base/platform.c:1439
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 platform_device_add+0x35a/0x800 drivers/base/platform.c:762
 platform_device_register_full+0x5cf/0x830 drivers/base/platform.c:902
 vhci_hcd_init+0x1a1/0x2f0 drivers/usb/usbip/vhci_hcd.c:1557
 do_one_initcall+0x11d/0x700 init/main.c:1347
 do_initcall_level init/main.c:1409 [inline]
 do_initcalls init/main.c:1425 [inline]
 do_basic_setup init/main.c:1445 [inline]
 kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658
 kernel_init+0x1f/0x1e0 init/main.c:1548
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888028c58000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2064 bytes inside of
 freed 8192-byte region [ffff888028c58000, ffff888028c5a000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28c58
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88813fe22280 dead000000000122 0000000000000000
head: 0000000000000000 0000000800020002 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 6303220528, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3266 [inline]
 allocate_slab mm/slub.c:3380 [inline]
 new_slab+0xa2/0x640 mm/slub.c:3426
 refill_objects+0xe3/0x410 mm/slub.c:7310
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4675
 alloc_from_pcs mm/slub.c:4773 [inline]
 slab_alloc_node mm/slub.c:4905 [inline]
 __do_kmalloc_node mm/slub.c:5333 [inline]
 __kmalloc_noprof+0x66d/0x820 mm/slub.c:5359
 _kmalloc_noprof include/linux/slab.h:992 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 scsi_host_alloc+0x30/0x1380 drivers/scsi/hosts.c:412
 virtscsi_probe+0x21f/0xf80 drivers/scsi/virtio_scsi.c:931
 virtio_dev_probe+0x6a2/0xbe0 drivers/virtio/virtio.c:347
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __driver_attach+0x21f/0x5b0 drivers/base/dd.c:1292
 bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
 bus_add_driver+0x305/0x5b0 drivers/base/bus.c:763
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888028c58700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888028c58800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff888028c58880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888028c58900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================