CIFSSMBGetPosixACL(const int xid, struct cifs_tcon *tcon,
		   const unsigned char *searchName,
		   char *acl_inf, const int buflen, const int acl_type,
		   const struct nls_table *nls_codepage, int remap)
{
/* SMB_QUERY_POSIX_ACL */
	TRANSACTION2_QPI_REQ *pSMB = NULL;
	TRANSACTION2_QPI_RSP *pSMBr = NULL;
	int rc = 0;
	int bytes_returned;
	int name_len;
	__u16 params, byte_count;

	cFYI(1, "In GetPosixACL (Unix) for path %s", searchName);

queryAclRetry:
	rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
		(void **) &pSMBr);
	if (rc)
		return rc;

	if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
		name_len =
			cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
					 PATH_MAX, nls_codepage, remap);
		name_len++;     /* trailing null */
		name_len *= 2;
		pSMB->FileName[name_len] = 0;
		pSMB->FileName[name_len+1] = 0;
	} else {	/* BB improve the check for buffer overruns BB */
		name_len = strnlen(searchName, PATH_MAX);
		name_len++;     /* trailing null */
		strncpy(pSMB->FileName, searchName, name_len);
	}

	params = 2 /* level */  + 4 /* rsrvd */  + name_len /* incl null */ ;
	pSMB->TotalDataCount = 0;
	pSMB->MaxParameterCount = cpu_to_le16(2);
	/* BB find exact max data count below from sess structure BB */
	pSMB->MaxDataCount = cpu_to_le16(4000);
	pSMB->MaxSetupCount = 0;
	pSMB->Reserved = 0;
	pSMB->Flags = 0;
	pSMB->Timeout = 0;
	pSMB->Reserved2 = 0;
	pSMB->ParameterOffset = cpu_to_le16(
		offsetof(struct smb_com_transaction2_qpi_req,
			 InformationLevel) - 4);
	pSMB->DataCount = 0;
	pSMB->DataOffset = 0;
	pSMB->SetupCount = 1;
	pSMB->Reserved3 = 0;
	pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
	byte_count = params + 1 /* pad */ ;
	pSMB->TotalParameterCount = cpu_to_le16(params);
	pSMB->ParameterCount = pSMB->TotalParameterCount;
	pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL);
	pSMB->Reserved4 = 0;
	inc_rfc1001_len(pSMB, byte_count);
	pSMB->ByteCount = cpu_to_le16(byte_count);

	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
		(struct smb_hdr *) pSMBr, &bytes_returned, 0);
	cifs_stats_inc(&tcon->num_acl_get);
	if (rc) {
		cFYI(1, "Send error in Query POSIX ACL = %d", rc);
	} else {
		/* decode response */

		rc = validate_t2((struct smb_t2_rsp *)pSMBr);
		/* BB also check enough total bytes returned */
		if (rc || get_bcc(&pSMBr->hdr) < 2)
			rc = -EIO;      /* bad smb */
		else {
			__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
			__u16 count = le16_to_cpu(pSMBr->t2.DataCount);
			rc = cifs_copy_posix_acl(acl_inf,
				(char *)&pSMBr->hdr.Protocol+data_offset,
				buflen, acl_type, count);
		}
	}
	cifs_buf_release(pSMB);
	if (rc == -EAGAIN)
		goto queryAclRetry;
	return rc;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.