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BUG: KASAN: use-after-free in usbhid_power+0xca/0xe0 drivers/hid/usbhid/hid-core.c:1234
Read of size 8 at addr ffff8881cdcb0008 by task syz-executor.5/28345

CPU: 0 PID: 28345 Comm: syz-executor.5 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
 usbhid_power+0xca/0xe0 drivers/hid/usbhid/hid-core.c:1234
 hid_hw_power include/linux/hid.h:1038 [inline]
 hidraw_open+0x20d/0x740 drivers/hid/hidraw.c:282
 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:00007feafd0337a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00000000004137d1
RDX: 0000000000000000 RSI: 0000000000008e42 RDI: 00007feafd033850
RBP: 000000000075bf20 R08: 000000000000000f R09: 0000000000000000
R10: 00007feafd0349d0 R11: 0000000000000293 R12: 00007feafd0346d4
R13: 00000000004c8cbf R14: 00000000004dfc90 R15: 00000000ffffffff

Allocated by task 15375:
 save_stack+0x1b/0x80 mm/kasan/common.c:69
 set_track mm/kasan/common.c:77 [inline]
 __kasan_kmalloc mm/kasan/common.c:493 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:466
 slab_post_alloc_hook mm/slab.h:520 [inline]
 slab_alloc_node mm/slub.c:2770 [inline]
 __kmalloc_node_track_caller+0xfc/0x380 mm/slub.c:4365
 __kmalloc_reserve.isra.0+0x39/0xe0 net/core/skbuff.c:141
 __alloc_skb+0xef/0x5a0 net/core/skbuff.c:209
 alloc_skb include/linux/skbuff.h:1055 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1174 [inline]
 netlink_sendmsg+0x8cd/0xcc0 net/netlink/af_netlink.c:1892
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:657
 ___sys_sendmsg+0x803/0x920 net/socket.c:2311
 __sys_sendmsg+0xec/0x1b0 net/socket.c:2356
 do_syscall_64+0xb7/0x580 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 15375:
 save_stack+0x1b/0x80 mm/kasan/common.c:69
 set_track mm/kasan/common.c:77 [inline]
 __kasan_slab_free+0x130/0x180 mm/kasan/common.c:455
 slab_free_hook mm/slub.c:1423 [inline]
 slab_free_freelist_hook mm/slub.c:1474 [inline]
 slab_free mm/slub.c:3016 [inline]
 kfree+0xe4/0x2f0 mm/slub.c:3957
 skb_free_head+0x8b/0xa0 net/core/skbuff.c:591
 skb_release_data+0x41f/0x7c0 net/core/skbuff.c:611
 skb_release_all+0x46/0x60 net/core/skbuff.c:665
 __kfree_skb net/core/skbuff.c:679 [inline]
 consume_skb net/core/skbuff.c:838 [inline]
 consume_skb+0xd9/0x320 net/core/skbuff.c:832
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x4d7/0x690 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x802/0xcc0 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:637 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:657
 ___sys_sendmsg+0x803/0x920 net/socket.c:2311
 __sys_sendmsg+0xec/0x1b0 net/socket.c:2356
 do_syscall_64+0xb7/0x580 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8881cdcb0000
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 8 bytes inside of
 1024-byte region [ffff8881cdcb0000, ffff8881cdcb0400)
The buggy address belongs to the page:
page:ffffea0007372c00 refcount:1 mapcount:0 mapping:ffff8881da002280 index:0x0 compound_mapcount: 0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da002280
raw: 0000000000000000 00000000000e000e 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881cdcaff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881cdcaff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881cdcb0000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff8881cdcb0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881cdcb0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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