usb 1-1: Direct firmware load for isl3887usb failed with error -2
usb 1-1: Firmware not found.
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BUG: KASAN: use-after-free in p54u_load_firmware_cb.cold+0x97/0x13d /drivers/net/wireless/intersil/p54/p54usb.c:933
Read of size 8 at addr ffff8881cd50f568 by task kworker/1:2/107

CPU: 1 PID: 107 Comm: kworker/1:2 Not tainted 5.2.0-rc6+ #15
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+0xca/0x13e /lib/dump_stack.c:113
 print_address_description+0x67/0x231 /mm/kasan/report.c:188
 __kasan_report.cold+0x1a/0x32 /mm/kasan/report.c:317
 kasan_report+0xe/0x20 /mm/kasan/common.c:614
 p54u_load_firmware_cb.cold+0x97/0x13d /drivers/net/wireless/intersil/p54/p54usb.c:933
 request_firmware_work_func+0x126/0x242 /drivers/base/firmware_loader/main.c:785
 process_one_work+0x905/0x1570 /kernel/workqueue.c:2269
 worker_thread+0x96/0xe20 /kernel/workqueue.c:2415
 kthread+0x30b/0x410 /kernel/kthread.c:255
 ret_from_fork+0x24/0x30 /arch/x86/entry/entry_64.S:352

Allocated by task 1728:
 save_stack+0x1b/0x80 /mm/kasan/common.c:71
 set_track /mm/kasan/common.c:79 [inline]
 __kasan_kmalloc /mm/kasan/common.c:489 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 /mm/kasan/common.c:462
 slab_post_alloc_hook /mm/slab.h:437 [inline]
 slab_alloc_node /mm/slub.c:2748 [inline]
 __kmalloc_node_track_caller+0xee/0x370 /mm/slub.c:4363
 __kmalloc_reserve.isra.0+0x39/0xe0 /net/core/skbuff.c:138
 __alloc_skb+0xef/0x5a0 /net/core/skbuff.c:206
 alloc_skb_fclone /./include/linux/skbuff.h:1103 [inline]
 sk_stream_alloc_skb+0x2c5/0xc40 /net/ipv4/tcp.c:875
 tcp_sendmsg_locked+0xc05/0x35e0 /net/ipv4/tcp.c:1262
 tcp_sendmsg+0x2b/0x40 /net/ipv4/tcp.c:1420
 inet_sendmsg+0x12e/0x590 /net/ipv4/af_inet.c:798
 sock_sendmsg_nosec /net/socket.c:646 [inline]
 sock_sendmsg+0xcf/0x120 /net/socket.c:665
 sock_write_iter+0x235/0x360 /net/socket.c:994
 call_write_iter /./include/linux/fs.h:1872 [inline]
 new_sync_write+0x420/0x650 /fs/read_write.c:483
 __vfs_write+0xc9/0x100 /fs/read_write.c:496
 vfs_write+0x206/0x560 /fs/read_write.c:558
 ksys_write+0x127/0x250 /fs/read_write.c:611
 do_syscall_64+0xb7/0x560 /arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8881cd50f180
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 1000 bytes inside of
 1024-byte region [ffff8881cd50f180, ffff8881cd50f580)
The buggy address belongs to the page:
page:ffffea0007354300 refcount:1 mapcount:0 mapping:ffff8881dac02a00 index:0x0 compound_mapcount: 0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 dead000000000100 dead000000000200 ffff8881dac02a00
raw: 0000000000000000 00000000000e000e 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881cd50f400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881cd50f480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881cd50f500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                          ^
 ffff8881cd50f580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881cd50f600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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