memory leak in mgmt_cmd

memory leak in mgmt_cmd_status
Status: upstream: reported syz repro on 2020/09/09 08:49
Reported-by: syzbot+80f5bab4eb14d14e7386@syzkaller.appspotmail.com
First crash: 20d, last: 20d

Patch testing requests:
Created	Duration	User	Patch	Repo	Result
2020/09/23 10:45	14m	anant.thazhemadam@gmail.com		upstream	OK

Sample crash report:

2020/09/09 02:38:52 executed programs: 3
2020/09/09 02:38:58 executed programs: 5
2020/09/09 02:39:03 executed programs: 7
BUG: memory leak
unreferenced object 0xffff888119d41a00 (size 224):
  comm "kworker/u5:0", pid 1520, jiffies 4294954656 (age 28.430s)
  hex dump (first 32 bytes):
    d0 30 1c 2b 81 88 ff ff d0 30 1c 2b 81 88 ff ff  .0.+.....0.+....
    00 00 00 00 00 00 00 00 00 30 1c 2b 81 88 ff ff  .........0.+....
  backtrace:
    [<000000007a3b2b8a>] __alloc_skb+0x5e/0x250 net/core/skbuff.c:198
    [<000000003fe180cd>] alloc_skb include/linux/skbuff.h:1094 [inline]
    [<000000003fe180cd>] mgmt_cmd_status+0x31/0x140 net/bluetooth/mgmt_util.c:102
    [<00000000a98852de>] mgmt_set_discoverable_complete+0x18e/0x1c0 net/bluetooth/mgmt.c:1351
    [<000000000d6aa222>] discoverable_update_work+0x7a/0xa0 net/bluetooth/hci_request.c:2595
    [<00000000159838c7>] process_one_work+0x213/0x4d0 kernel/workqueue.c:2269
    [<0000000087b95ef0>] worker_thread+0x58/0x4b0 kernel/workqueue.c:2415
    [<0000000059403542>] kthread+0x164/0x190 kernel/kthread.c:292
    [<00000000d35ee226>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Crashes (1):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Maintainers
ci-upstream-gce-leak	2020/09/09 02:42	upstream	6f6a73c8	abf9ba4f	.config	log	report	syz			davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org