BUG: KASAN: slab-use-after-free in roccat_disconnect+0x236/0x240 drivers/hid/hid-roccat.c:373
Read of size 4 at addr ffff88811bc55408 by task kworker/0:2/65

CPU: 0 UID: 0 PID: 65 Comm: kworker/0:2 Not tainted syzkaller #0 238002c42480d657f84ffff3a67e0b81dcf43858
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_address_description+0x71/0x210 mm/kasan/report.c:377
 print_report+0x4a/0x70 mm/kasan/report.c:481
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 __asan_report_load4_noabort+0x18/0x20 mm/kasan/report_generic.c:380
 roccat_disconnect+0x236/0x240 drivers/hid/hid-roccat.c:373
 savu_remove_specials drivers/hid/hid-roccat-savu.c:110 [inline]
 savu_remove+0xf0/0x170 drivers/hid/hid-roccat-savu.c:150
 hid_device_remove+0x293/0x400 drivers/hid/hid-core.c:-1
 device_remove drivers/base/dd.c:567 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x4ad/0x830 drivers/base/dd.c:1295
 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318
 bus_remove_device+0x34f/0x370 drivers/base/bus.c:576
 device_del+0x583/0xcf0 drivers/base/core.c:3881
 hid_remove_device drivers/hid/hid-core.c:3000 [inline]
 hid_destroy_device+0x6e/0x110 drivers/hid/hid-core.c:3020
 usbhid_disconnect+0xa3/0xc0 drivers/hid/usbhid/hid-core.c:1478
 usb_unbind_interface+0x2b0/0xa40 drivers/usb/core/driver.c:462
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x525/0x830 drivers/base/dd.c:1295
 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318
 bus_remove_device+0x34f/0x370 drivers/base/bus.c:576
 device_del+0x583/0xcf0 drivers/base/core.c:3881
 usb_disable_device+0x3af/0x770 drivers/usb/core/message.c:1476
 usb_disconnect+0x331/0x950 drivers/usb/core/hub.c:2353
 hub_port_connect drivers/usb/core/hub.c:5414 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x1ad5/0x4360 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3273 [inline]
 process_scheduled_works+0x7f4/0x1060 kernel/workqueue.c:3354
 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435
 kthread+0x2c4/0x360 kernel/kthread.c:389
 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 65:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
 kasan_kmalloc include/linux/kasan.h:261 [inline]
 __kmalloc_cache_noprof+0x23c/0x470 mm/slub.c:4426
 kmalloc_noprof include/linux/slab.h:882 [inline]
 kzalloc_noprof include/linux/slab.h:1117 [inline]
 roccat_connect+0x6a/0x540 drivers/hid/hid-roccat.c:306
 savu_init_specials drivers/hid/hid-roccat-savu.c:84 [inline]
 savu_probe+0x1a7/0x3f0 drivers/hid/hid-roccat-savu.c:134
 __hid_device_probe drivers/hid/hid-core.c:2760 [inline]
 hid_device_probe+0x2ce/0x5f0 drivers/hid/hid-core.c:2797
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e1/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x264/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 hid_add_device+0x3c4/0x5a0 drivers/hid/hid-core.c:2943
 usbhid_probe+0xdca/0x1310 drivers/hid/usbhid/hid-core.c:1451
 usb_probe_interface+0x6a8/0xbf0 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e1/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x264/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1aad/0x2080 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1ef/0x3b0 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e1/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x264/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x98d/0x1500 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x2dbd/0x4360 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3273 [inline]
 process_scheduled_works+0x7f4/0x1060 kernel/workqueue.c:3354
 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435
 kthread+0x2c4/0x360 kernel/kthread.c:389
 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Freed by task 414:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4875
 roccat_release+0x2c3/0x390 drivers/hid/hid-roccat.c:229
 __fput+0x208/0xa30 fs/file_table.c:447
 ____fput+0x20/0x30 fs/file_table.c:475
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa46/0x2850 kernel/exit.c:961
 do_group_exit+0x21f/0x2f0 kernel/exit.c:1104
 __do_sys_exit_group kernel/exit.c:1115 [inline]
 __se_sys_exit_group kernel/exit.c:1113 [inline]
 __x64_sys_exit_group+0x43/0x50 kernel/exit.c:1113
 x64_sys_call+0x2ed2/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff88811bc55400
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
 freed 512-byte region [ffff88811bc55400, ffff88811bc55600)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11bc54
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0x4000000000000040(head|zone=1)
page_type: f5(slab)
raw: 4000000000000040 ffff888100041c80 0000000000000000 0000000000000001
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 4000000000000040 ffff888100041c80 0000000000000000 0000000000000001
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 4000000000000002 ffffea00046f1501 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 115, tgid 115 (udevd), ts 7710514314, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1863
 prep_new_page+0x2d/0x180 mm/page_alloc.c:1871
 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3948
 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5315
 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1
 allocate_slab+0x69/0x430 mm/slub.c:2687
 new_slab mm/slub.c:2741 [inline]
 ___slab_alloc+0x591/0x8c0 mm/slub.c:3934
 __slab_alloc mm/slub.c:4025 [inline]
 __slab_alloc_node mm/slub.c:4078 [inline]
 slab_alloc_node mm/slub.c:4239 [inline]
 __do_kmalloc_node mm/slub.c:4394 [inline]
 __kmalloc_node_track_caller_noprof+0x2e3/0x4f0 mm/slub.c:4414
 kmalloc_reserve+0x144/0x4f0 net/core/skbuff.c:618
 __alloc_skb+0x13f/0x360 net/core/skbuff.c:687
 alloc_skb include/linux/skbuff.h:1363 [inline]
 alloc_skb_with_frags+0xd0/0x8b0 net/core/skbuff.c:6622
 sock_alloc_send_pskb+0x883/0x9a0 net/core/sock.c:2923
 unix_dgram_sendmsg+0x63a/0x1a90 net/unix/af_unix.c:2040
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg net/socket.c:727 [inline]
 sock_write_iter+0x442/0x490 net/socket.c:1148
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x762/0xfd0 fs/read_write.c:684
 ksys_write+0x145/0x260 fs/read_write.c:737
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88811bc55300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88811bc55380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88811bc55400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff88811bc55480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88811bc55500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
usb 3-1: new high-speed USB device number 14 using dummy_hcd
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 3-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0033: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.2-1/input0
usb 3-1: USB disconnect, device number 14
usb 3-1: new high-speed USB device number 15 using dummy_hcd
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 3-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0038: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.2-1/input0
usb 3-1: USB disconnect, device number 15
usb 3-1: new high-speed USB device number 16 using dummy_hcd
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 3-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003C: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.2-1/input0
usb 3-1: USB disconnect, device number 16
usb 3-1: new high-speed USB device number 17 using dummy_hcd
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 3-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0040: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.2-1/input0
usb 3-1: USB disconnect, device number 17
usb 3-1: new high-speed USB device number 18 using dummy_hcd
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 3-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 3-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0044: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.2-1/input0
usb 3-1: USB disconnect, device number 18
usb 3-1: new high-speed USB device number 19 using dummy_hcd