BUG: memory leak
unreferenced object 0xffff888116169500 (size 224):
  comm "syz-executor515", pid 7068, jiffies 4294999106 (age 26.680s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000000f21fa03>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<000000000f21fa03>] slab_post_alloc_hook mm/slab.h:439 [inline]
    [<000000000f21fa03>] slab_alloc_node mm/slab.c:3269 [inline]
    [<000000000f21fa03>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
    [<000000003a2a74ed>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
    [<000000002b2a11ac>] alloc_skb include/linux/skbuff.h:1054 [inline]
    [<000000002b2a11ac>] bt_skb_alloc include/net/bluetooth/bluetooth.h:339 [inline]
    [<000000002b2a11ac>] h4_recv_buf+0x26d/0x450 drivers/bluetooth/hci_h4.c:182
    [<0000000015521428>] h4_recv+0x51/0xb0 drivers/bluetooth/hci_h4.c:116
    [<00000000a6e28ccf>] hci_uart_tty_receive+0xba/0x200 drivers/bluetooth/hci_ldisc.c:592
    [<000000000aff2e04>] tiocsti drivers/tty/tty_io.c:2195 [inline]
    [<000000000aff2e04>] tty_ioctl+0x81c/0xa30 drivers/tty/tty_io.c:2571
    [<00000000c16d7466>] vfs_ioctl fs/ioctl.c:46 [inline]
    [<00000000c16d7466>] file_ioctl fs/ioctl.c:509 [inline]
    [<00000000c16d7466>] do_vfs_ioctl+0x62a/0x810 fs/ioctl.c:696
    [<000000009da0c5ba>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:713
    [<00000000fed984b4>] __do_sys_ioctl fs/ioctl.c:720 [inline]
    [<00000000fed984b4>] __se_sys_ioctl fs/ioctl.c:718 [inline]
    [<00000000fed984b4>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:718
    [<000000002ff2237b>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
    [<00000000e978850e>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

executing program
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