usb 6-1: Direct firmware load for isl3887usb failed with error -2
p54u_load_firmware_cb: priv->udev = ffff88809ad5bb80
usb 6-1: Firmware not found.
==================================================================
BUG: KASAN: slab-out-of-bounds in p54u_load_firmware_cb+0x3c9/0x45f drivers/net/wireless/intersil/p54/p54usb.c:937
Read of size 8 at addr ffff88809abab588 by task kworker/1:8/5526

CPU: 1 PID: 5526 Comm: kworker/1:8 Not tainted 5.1.0-rc3-g43151d6-dirty #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events request_firmware_work_func
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xe8/0x16e lib/dump_stack.c:113
 print_address_description+0x6c/0x236 mm/kasan/report.c:187
 kasan_report.cold+0x1a/0x3c mm/kasan/report.c:317
 p54u_load_firmware_cb+0x3c9/0x45f drivers/net/wireless/intersil/p54/p54usb.c:937
 request_firmware_work_func+0x12d/0x249 drivers/base/firmware_loader/main.c:785
 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
 kthread+0x313/0x420 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352

Allocated by task 5503:
 set_track mm/kasan/common.c:87 [inline]
 __kasan_kmalloc mm/kasan/common.c:497 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:470
 slab_post_alloc_hook mm/slab.h:437 [inline]
 slab_alloc_node mm/slub.c:2756 [inline]
 __kmalloc_node_track_caller+0xf3/0x320 mm/slub.c:4372
 __kmalloc_reserve.isra.0+0x3e/0xf0 net/core/skbuff.c:140
 __alloc_skb+0xf4/0x5a0 net/core/skbuff.c:208
 alloc_skb include/linux/skbuff.h:1058 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1182 [inline]
 netlink_sendmsg+0x8db/0xcd0 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xda/0x130 net/socket.c:661
 ___sys_sendmsg+0x80b/0x930 net/socket.c:2260
 __sys_sendmsg+0xf1/0x1b0 net/socket.c:2298
 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 5503:
 set_track mm/kasan/common.c:87 [inline]
 __kasan_slab_free+0x130/0x180 mm/kasan/common.c:459
 slab_free_hook mm/slub.c:1429 [inline]
 slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456
 slab_free mm/slub.c:3003 [inline]
 kfree+0xce/0x290 mm/slub.c:3958
 skb_free_head+0x90/0xb0 net/core/skbuff.c:557
 skb_release_data+0x543/0x8b0 net/core/skbuff.c:577
 skb_release_all+0x4b/0x60 net/core/skbuff.c:631
 __kfree_skb net/core/skbuff.c:645 [inline]
 consume_skb net/core/skbuff.c:705 [inline]
 consume_skb+0xc5/0x2f0 net/core/skbuff.c:699
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x4e2/0x690 net/netlink/af_netlink.c:1336
 netlink_sendmsg+0x810/0xcd0 net/netlink/af_netlink.c:1925
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xda/0x130 net/socket.c:661
 ___sys_sendmsg+0x80b/0x930 net/socket.c:2260
 __sys_sendmsg+0xf1/0x1b0 net/socket.c:2298
 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff88809abab180
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 8 bytes to the right of
 1024-byte region [ffff88809abab180, ffff88809abab580)
The buggy address belongs to the page:
page:ffffea00026aea00 count:1 mapcount:0 mapping:ffff88812c3f4a00 index:0x0 compound_mapcount: 0
flags: 0xfff00000010200(slab|head)
raw: 00fff00000010200 dead000000000100 dead000000000200 ffff88812c3f4a00
raw: 0000000000000000 00000000000e000e 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88809abab480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88809abab500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88809abab580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                      ^
 ffff88809abab600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88809abab680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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