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BUG: KASAN: slab-out-of-bounds in hiddev_ioctl_usage.isra.0+0x137f/0x13f0 drivers/hid/usbhid/hiddev.c:522
Read of size 4 at addr ffff8881cc928288 by task syz-executor.2/13907

CPU: 1 PID: 13907 Comm: syz-executor.2 Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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
 hiddev_ioctl_usage.isra.0+0x137f/0x13f0 drivers/hid/usbhid/hiddev.c:522
 hiddev_ioctl+0x7a3/0x1570 drivers/hid/usbhid/hiddev.c:794
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d239
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe1ea031c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000000eb40 RCX: 000000000045d239
RDX: 0000000020000500 RSI: 00000000c018480b RDI: 0000000000000004
RBP: 000000000118d0c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d08c
R13: 00007ffdc29ac54f R14: 00007fe1ea0329c0 R15: 000000000118d08c

Allocated by task 3279:
 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]
 hid_register_field drivers/hid/hid-core.c:102 [inline]
 hid_add_field+0x463/0x11d0 drivers/hid/hid-core.c:303
 hid_parser_main+0x57d/0xaf0 drivers/hid/hid-core.c:624
 hid_open_report+0x375/0x640 drivers/hid/hid-core.c:1253
 hid_parse include/linux/hid.h:1017 [inline]
 cmhid_probe+0xe1/0x170 drivers/hid/hid-cmedia.c:117
 hid_device_probe+0x2bd/0x3f0 drivers/hid/hid-core.c:2263
 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
 hid_add_device+0x344/0x9b0 drivers/hid/hid-core.c:2419
 usbhid_probe+0xaae/0xfc0 drivers/hid/usbhid/hid-core.c:1407
 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

The buggy address belongs to the object at ffff8881cc928200
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 136 bytes inside of
 192-byte region [ffff8881cc928200, ffff8881cc9282c0)
The buggy address belongs to the page:
page:000000009a8fca4a refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1cc928
flags: 0x200000000000200(slab)
raw: 0200000000000200 ffffea000733d500 0000000900000002 ffff8881da041500
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881cc928180: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff8881cc928200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881cc928280: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                      ^
 ffff8881cc928300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881cc928380: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
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