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BUG: KASAN: use-after-free in clear_bit include/asm-generic/bitops-instrumented.h:56 [inline]
BUG: KASAN: use-after-free in usbhid_open+0x263/0x390 drivers/hid/usbhid/hid-core.c:727
Write of size 8 at addr ffff8881d3efe8c0 by task syz-executor.1/12123

CPU: 1 PID: 12123 Comm: syz-executor.1 Not tainted 5.3.0-rc7+ #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+0xca/0x13e lib/dump_stack.c:113
 print_address_description+0x6a/0x32c mm/kasan/report.c:351
 __kasan_report.cold+0x1a/0x33 mm/kasan/report.c:482
 kasan_report+0xe/0x12 mm/kasan/common.c:618
 check_memory_region_inline mm/kasan/generic.c:185 [inline]
 check_memory_region+0x128/0x190 mm/kasan/generic.c:192
 clear_bit include/asm-generic/bitops-instrumented.h:56 [inline]
 usbhid_open+0x263/0x390 drivers/hid/usbhid/hid-core.c:727
 hid_hw_open+0xd2/0x160 drivers/hid/hid-core.c:2023
 hiddev_open+0x20d/0x990 drivers/hid/usbhid/hiddev.c:273
 usb_open+0x1df/0x270 drivers/usb/core/file.c:48
 chrdev_open+0x219/0x5c0 fs/char_dev.c:414
 do_dentry_open+0x494/0x1120 fs/open.c:797
 do_last fs/namei.c:3416 [inline]
 path_openat+0x1430/0x3f50 fs/namei.c:3533
 do_filp_open+0x1a1/0x280 fs/namei.c:3563
 do_sys_open+0x3c0/0x580 fs/open.c:1089
 do_syscall_64+0xb7/0x580 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4137d1
Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 0a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007f252cd827a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004137d1
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007f252cd827d0
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000064 R11: 0000000000000293 R12: 00007f252cd836d4
R13: 00000000004c8c08 R14: 00000000004dfbb8 R15: 00000000ffffffff

The buggy address belongs to the page:
page:ffffea00074fbf80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x200000000000000()
raw: 0200000000000000 0000000000000000 ffffea00074fbf88 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881d3efe780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881d3efe800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8881d3efe880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                           ^
 ffff8881d3efe900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881d3efe980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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