BUG: memory leak
unreferenced object 0xffff88810a6ff000 (size 1024):
  comm "syz.0.18", pid 5946, jiffies 4294948229
  hex dump (first 32 bytes):
    00 f4 6f 0a 81 88 ff ff 00 00 00 00 00 00 00 00  ..o.............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 4e7ca87c):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4625 [inline]
    slab_alloc_node mm/slub.c:4945 [inline]
    __kmalloc_cache_noprof+0x356/0x440 mm/slub.c:5511
    _kmalloc_noprof include/linux/slab.h:969 [inline]
    _kzalloc_noprof include/linux/slab.h:1290 [inline]
    gsm_dlci_alloc+0x29/0x1b0 drivers/tty/n_gsm.c:2648
    gsm_activate_mux+0x1a/0x1a0 drivers/tty/n_gsm.c:3189
    gsm_config_ext drivers/tty/n_gsm.c:3494 [inline]
    gsmld_ioctl+0x1b8/0x9e0 drivers/tty/n_gsm.c:3858
    tty_ioctl+0xabc/0xd50 drivers/tty/tty_io.c:2801
    vfs_ioctl fs/ioctl.c:51 [inline]
    __do_sys_ioctl fs/ioctl.c:597 [inline]
    __se_sys_ioctl fs/ioctl.c:583 [inline]
    __x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF