usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 5-1: Product: syz
usb 5-1: Manufacturer: syz
usb 5-1: SerialNumber: syz
usb 5-1: config 0 descriptor??
==================================================================
BUG: KASAN: slab-out-of-bounds in usb_endpoint_xfer_bulk include/uapi/linux/usb/ch9.h:518 [inline]
BUG: KASAN: slab-out-of-bounds in usb_endpoint_is_bulk_out include/uapi/linux/usb/ch9.h:586 [inline]
BUG: KASAN: slab-out-of-bounds in prism2sta_probe_usb+0x26c/0x810 drivers/staging/wlan-ng/prism2usb.c:80
Read of size 1 at addr ffff8881c4ee55a3 by task kworker/1:6/26277

CPU: 1 PID: 26277 Comm: kworker/1:6 Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xf6/0x16e lib/dump_stack.c:118
 print_address_description.constprop.0+0x1c/0x210 mm/kasan/report.c:383
 __kasan_report mm/kasan/report.c:513 [inline]
 kasan_report.cold+0x37/0x7c mm/kasan/report.c:530
 usb_endpoint_xfer_bulk include/uapi/linux/usb/ch9.h:518 [inline]
 usb_endpoint_is_bulk_out include/uapi/linux/usb/ch9.h:586 [inline]
 prism2sta_probe_usb+0x26c/0x810 drivers/staging/wlan-ng/prism2usb.c:80
 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:374
 really_probe+0x291/0xde0 drivers/base/dd.c:553
 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:738
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:844
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
 __device_attach+0x228/0x4a0 drivers/base/dd.c:912
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0xb51/0x1c70 drivers/base/core.c:2930
 usb_set_configuration+0xf05/0x18a0 drivers/usb/core/message.c:2032
 usb_generic_driver_probe+0xba/0xf2 drivers/usb/core/generic.c:239
 usb_probe_device+0xd9/0x250 drivers/usb/core/driver.c:272
 really_probe+0x291/0xde0 drivers/base/dd.c:553
 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:738
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:844
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
 __device_attach+0x228/0x4a0 drivers/base/dd.c:912
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0xb51/0x1c70 drivers/base/core.c:2930
 usb_new_device.cold+0x71d/0xfd4 drivers/usb/core/hub.c:2554
 hub_port_connect drivers/usb/core/hub.c:5208 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]
 port_event drivers/usb/core/hub.c:5494 [inline]
 hub_event+0x2361/0x4390 drivers/usb/core/hub.c:5576
 process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
 kthread+0x392/0x470 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Allocated by task 26277:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48
 kasan_set_track mm/kasan/common.c:56 [inline]
 __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:461
 kmalloc include/linux/slab.h:559 [inline]
 kzalloc include/linux/slab.h:666 [inline]
 usb_parse_interface drivers/usb/core/config.c:571 [inline]
 usb_parse_configuration drivers/usb/core/config.c:795 [inline]
 usb_get_configuration+0x13d7/0x3a50 drivers/usb/core/config.c:944
 usb_enumerate_device drivers/usb/core/hub.c:2387 [inline]
 usb_new_device+0x42c/0x7a0 drivers/usb/core/hub.c:2523
 hub_port_connect drivers/usb/core/hub.c:5208 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]
 port_event drivers/usb/core/hub.c:5494 [inline]
 hub_event+0x2361/0x4390 drivers/usb/core/hub.c:5576
 process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
 kthread+0x392/0x470 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

The buggy address belongs to the object at ffff8881c4ee5500
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 163 bytes inside of
 192-byte region [ffff8881c4ee5500, ffff8881c4ee55c0)
The buggy address belongs to the page:
page:0000000043cba30d refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c4ee5
flags: 0x200000000000200(slab)
raw: 0200000000000200 ffffea0007658a40 0000000500000005 ffff8881da041500
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881c4ee5480: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff8881c4ee5500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881c4ee5580: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff8881c4ee5600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881c4ee5680: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================