2019/12/22 07:07:14 executed programs: 63
BUG: memory leak
unreferenced object 0xffff88810cd50800 (size 224):
  comm "syz-executor.2", pid 7367, jiffies 4295057474 (age 17.990s)
  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:
    [<00000000f8c203c7>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<00000000f8c203c7>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<00000000f8c203c7>] slab_alloc_node mm/slab.c:3263 [inline]
    [<00000000f8c203c7>] kmem_cache_alloc_node+0x163/0x2f0 mm/slab.c:3575
    [<0000000087af8bfc>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:197
    [<000000006d1d04d4>] alloc_skb include/linux/skbuff.h:1049 [inline]
    [<000000006d1d04d4>] bt_skb_alloc include/net/bluetooth/bluetooth.h:339 [inline]
    [<000000006d1d04d4>] h4_recv_buf+0x26d/0x450 drivers/bluetooth/hci_h4.c:182
    [<000000003950205f>] h4_recv+0x51/0xb0 drivers/bluetooth/hci_h4.c:116
    [<000000000eff8c3d>] hci_uart_tty_receive+0xba/0x200 drivers/bluetooth/hci_ldisc.c:613
    [<00000000450dfc94>] tiocsti drivers/tty/tty_io.c:2200 [inline]
    [<00000000450dfc94>] tty_ioctl+0x81c/0xa30 drivers/tty/tty_io.c:2576
    [<00000000975c8686>] vfs_ioctl fs/ioctl.c:47 [inline]
    [<00000000975c8686>] file_ioctl fs/ioctl.c:545 [inline]
    [<00000000975c8686>] do_vfs_ioctl+0x551/0x890 fs/ioctl.c:732
    [<00000000640e9e62>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:749
    [<000000006c802532>] __do_sys_ioctl fs/ioctl.c:756 [inline]
    [<000000006c802532>] __se_sys_ioctl fs/ioctl.c:754 [inline]
    [<000000006c802532>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:754
    [<00000000d0def8de>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
    [<00000000ffe51d21>] entry_SYSCALL_64_after_hwframe+0x44/0xa9