r6 = openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000002200), 0x0, 0x0)
ioctl$LOOP_CTL_REMOVE(r6, 0x4c81, 0x0)
ioctl$LOOP_CTL_ADD(r6, 0x4c80, 0x0)
creat(&(0x7f0000000f00)='./file0\x00', 0x21)
BUG: memory leak
unreferenced object 0xffff88800af7dd00 (size 128):
  comm "syz-executor.4", pid 5756, jiffies 4295137185
  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 (crc 96bdc52d):
    __kmalloc_cache_noprof+0x445/0x6b0
    v9fs_init_fs_context+0x49/0x5b0
    alloc_fs_context+0x570/0x9e0
    path_mount+0xd8d/0x2140
    __x64_sys_mount+0x293/0x310
    do_syscall_64+0xbf/0x430
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: leak checking failed