Given the following code containing errors, provide Common Weakness Enumeration (CWE) identifiers and corresponding messages in JSON format. Each identified weakness should have a unique entry in the JSON array.
    Code: compat_mpt_command(struct file *filp, unsigned int cmd,
			unsigned long arg)
{
	struct mpt_ioctl_command32 karg32;
	struct mpt_ioctl_command32 __user *uarg = (struct mpt_ioctl_command32 __user *) arg;
	struct mpt_ioctl_command karg;
	MPT_ADAPTER *iocp = NULL;
	int iocnum, iocnumX;
	int nonblock = (filp->f_flags & O_NONBLOCK);
	int ret;

	if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32)))
		return -EFAULT;

	/* Verify intended MPT adapter */
	iocnumX = karg32.hdr.iocnum & 0xFF;
	if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
	    (iocp == NULL)) {
		printk(KERN_DEBUG MYNAM "::compat_mpt_command @%d - ioc%d not found!\n",
			__LINE__, iocnumX);
		return -ENODEV;
	}

	if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
		return ret;

	dctlprintk(iocp, printk(MYIOC_s_DEBUG_FMT "compat_mpt_command() called\n",
	    iocp->name));
	/* Copy data to karg */
	karg.hdr.iocnum = karg32.hdr.iocnum;
	karg.hdr.port = karg32.hdr.port;
	karg.timeout = karg32.timeout;
	karg.maxReplyBytes = karg32.maxReplyBytes;

	karg.dataInSize = karg32.dataInSize;
	karg.dataOutSize = karg32.dataOutSize;
	karg.maxSenseBytes = karg32.maxSenseBytes;
	karg.dataSgeOffset = karg32.dataSgeOffset;

	karg.replyFrameBufPtr = (char __user *)(unsigned long)karg32.replyFrameBufPtr;
	karg.dataInBufPtr = (char __user *)(unsigned long)karg32.dataInBufPtr;
	karg.dataOutBufPtr = (char __user *)(unsigned long)karg32.dataOutBufPtr;
	karg.senseDataPtr = (char __user *)(unsigned long)karg32.senseDataPtr;

	/* Pass new structure to do_mpt_command
	 */
	ret = mptctl_do_mpt_command (karg, &uarg->MF);

	mutex_unlock(&iocp->ioctl_cmds.mutex);

	return ret;
} ; Sample JSON Format Confermily Expected output: "examples" => "cwe": "xxx"; "message": "xxx"
    
 'cwe': ['CWE-362', 'CWE-369'], 'message': 'scsi: mptfusion: Fix double fetch bug in ioctl

Tom Hatskevich reported that we look up "iocp" then, in the called
functions we do a second copy_from_user() and look it up again.
The problem that could cause is:

drivers/message/fusion/mptctl.c
   674          /* All of these commands require an interrupt or
   675           * are unknown/illegal.
   676           */
   677          if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
                                               ^^^^
We take this lock.

   678                  return ret;
   679
   680          if (cmd == MPTFWDOWNLOAD)
   681                  ret = mptctl_fw_download(arg);
                                                 ^^^
Then the user memory changes and we look up "iocp" again but a different
one so now we are holding the incorrect lock and have a race condition.

   682          else if (cmd == MPTCOMMAND)
   683                  ret = mptctl_mpt_command(arg);

The security impact of this bug is not as bad as it could have been
because these operations are all privileged and root already has
enormous destructive power.  But it's still worth fixing.

This patch passes the "iocp" pointer to the functions to avoid the
second lookup.  That deletes 100 lines of code from the driver so
it's a nice clean up as well.

Link: https://lore.kernel.org/r/20200114123414.GA7957@kadam
Reported-by: Tom Hatskevich <tom2001tom.23@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>'